Info

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Function
__mem_cgroup_uncharge_common
First occurrence
2020-11-15
Last occurrence
2022-03-25
State
NEW
Components
kernel
Quality
-41

Statistics

Operating system Count
CentOS 7 21
Architecture Count
x86_64 21
Related packages Count
kernel 21
 0:3.10.0-514.16.1.el7 7
 0:3.10.0-1062.12.1.el7 4
 0:3.10.0-957.el7 3
 0:3.10.0-693.el7 2
 0:3.10.0-1160.45.1.el7 1
 0:3.10.0-1160.el7 1
 0:3.10.0-1160.11.1.el7 1
 0:3.10.0-957.5.1.el7 1
 0:3.10.0-1160.108.1.el7 1

Packages names with count less than the total count of reports are most probably not the cause of the problem.

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No reports in the last 20 days.

Report backtrace


Complete report #1421068
Frame # Function Binary Source or offset Line
1
__mem_cgroup_uncharge_common
vmlinux 0xffffffff811f1df7
Build id: 3.10.0-693.el7.x86_64
0x57
2
mem_cgroup_uncharge_cache_page
vmlinux 0xffffffff811f6402
Build id: 3.10.0-693.el7.x86_64
0x12
3
__remove_mapping
vmlinux 0xffffffff811951da
Build id: 3.10.0-693.el7.x86_64
0xaa
4
shrink_page_list
vmlinux 0xffffffff81196318
Build id: 3.10.0-693.el7.x86_64
0x598
5
shrink_inactive_list
vmlinux 0xffffffff81196e7a
Build id: 3.10.0-693.el7.x86_64
0x1ca
6
shrink_lruvec
vmlinux 0xffffffff81197975
Build id: 3.10.0-693.el7.x86_64
0x385
7
shrink_zone
vmlinux 0xffffffff81197d96
Build id: 3.10.0-693.el7.x86_64
0x76
8
do_try_to_free_pages
vmlinux 0xffffffff811982a0
Build id: 3.10.0-693.el7.x86_64
0xf0
9
try_to_free_pages
vmlinux 0xffffffff8119878c
Build id: 3.10.0-693.el7.x86_64
0xfc
10
__alloc_pages_slowpath
vmlinux 0xffffffff8169fb0b
Build id: 3.10.0-693.el7.x86_64
0x457
11
__alloc_pages_nodemask
vmlinux 0xffffffff8118cd85
Build id: 3.10.0-693.el7.x86_64
0x405
12
alloc_pages_current
vmlinux 0xffffffff811d1108
Build id: 3.10.0-693.el7.x86_64
0x98
13
vmballoon_work
vmw_balloon 0xffffffffc0442fd8
Build id: 3.10.0-693.el7.x86_64
0x3b8
14
process_one_work
vmlinux 0xffffffff810a881a
Build id: 3.10.0-693.el7.x86_64
0x17a
15
worker_thread
vmlinux 0xffffffff810a94e6
Build id: 3.10.0-693.el7.x86_64
0x126
16
? manage_workers.isra.24
vmlinux 0xffffffff810a93c0
Build id: 3.10.0-693.el7.x86_64
0x2a0
17
kthread
vmlinux 0xffffffff810b098f
Build id: 3.10.0-693.el7.x86_64
0xcf
18
? insert_kthread_work
vmlinux 0xffffffff810b08c0
Build id: 3.10.0-693.el7.x86_64
0x40
19
ret_from_fork
vmlinux 0xffffffff816b4f18
Build id: 3.10.0-693.el7.x86_64
0x58
20
? insert_kthread_work
vmlinux 0xffffffff810b08c0
Build id: 3.10.0-693.el7.x86_64
0x40
NMI watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [kworker/0:0:5606]
Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 tun bridge stp llc ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter arc4 md4 nls_utf8 cifs dns_resolver vmw_vsock_vmci_transport vsock sb_edac edac_core coretemp iosf_mbi crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd ppdev vmw_balloon joydev pcspkr sg parport_pc parport shpchp vmw_vmci i2c_piix4 nfsd auth_rpcgss nfs_acl lockd grace sunrpc binfmt_misc ip_tables xfs libcrc32c sr_mod cdrom ata_generic pata_acpi sd_mod crc_t10dif crct10dif_generic vmwgfx drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm mptsas drm scsi_transport_sas
ata_piix mptscsih crct10dif_pclmul crct10dif_common libata crc32c_intel serio_raw mptbase vmxnet3 i2c_core floppy dm_mirror dm_region_hash dm_log dm_mod
CPU: 0 PID: 5606 Comm: kworker/0:0 Tainted: G             L ------------   3.10.0-693.el7.x86_64 #1
Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 09/21/2015
Workqueue: events_freezable vmballoon_work [vmw_balloon]
task: ffff88016d7f8fd0 ti: ffff880668318000 task.ti: ffff880668318000
RIP: 0010:[<ffffffff811f1df7>]  [<ffffffff811f1df7>] __mem_cgroup_uncharge_common+0x57/0x2f0
RSP: 0018:ffff88066831b6e8  EFLAGS: 00010202
RAX: 0000000000000002 RBX: ffff88066831b6f8 RCX: 00000000ffffffbc
RDX: ffff880c3ffd6ca0 RSI: 0000000000000000 RDI: 000000000032d400
RBP: ffff88066831b718 R08: 0000000000000000 R09: ffff88096813c248
R10: ffff88066831b6f0 R11: 0000000000000002 R12: ffffea0020c430c0
R13: 0000000000000001 R14: ffff88066831b650 R15: ffff88066831b6d8
FS:  0000000000000000(0000) GS:ffff880c0f000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f351ff88060 CR3: 0000000c0d32a000 CR4: 00000000003407f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
ffff880900000000 ffffea000cb50000 ffff880b1735ebb8 0000000000000001
ffff880b1735eba0 0000000000000000 ffff88066831b728 ffffffff811f6402
ffff88066831b768 ffffffff811951da 000000001c522d97 ffff88066831bb60
Call Trace:
[<ffffffff811f6402>] mem_cgroup_uncharge_cache_page+0x12/0x20
[<ffffffff811951da>] __remove_mapping+0xaa/0x180
[<ffffffff81196318>] shrink_page_list+0x598/0xad0
[<ffffffff81196e7a>] shrink_inactive_list+0x1ca/0x5d0
[<ffffffff81197975>] shrink_lruvec+0x385/0x730
[<ffffffff81197d96>] shrink_zone+0x76/0x1a0
[<ffffffff811982a0>] do_try_to_free_pages+0xf0/0x4e0
[<ffffffff8119878c>] try_to_free_pages+0xfc/0x180
[<ffffffff8169fb0b>] __alloc_pages_slowpath+0x457/0x724
[<ffffffff8118cd85>] __alloc_pages_nodemask+0x405/0x420
[<ffffffff811d1108>] alloc_pages_current+0x98/0x110
[<ffffffffc0442fd8>] vmballoon_work+0x3b8/0x615 [vmw_balloon]
[<ffffffff810a881a>] process_one_work+0x17a/0x440
[<ffffffff810a94e6>] worker_thread+0x126/0x3c0
[<ffffffff810a93c0>] ? manage_workers.isra.24+0x2a0/0x2a0
[<ffffffff810b098f>] kthread+0xcf/0xe0
[<ffffffff810b08c0>] ? insert_kthread_work+0x40/0x40
[<ffffffff816b4f18>] ret_from_fork+0x58/0x90
[<ffffffff810b08c0>] ? insert_kthread_work+0x40/0x40
Code: 49 89 fc 41 89 f5 41 be 01 00 00 00 f6 c4 40 0f 85 77 01 00 00 4c 89 e7 e8 97 50 00 00 48 89 c3 48 8b 00 a8 02 0f 84 4d 01 00 00 <f0> 0f ba 2b 00 19 c0 85 c0 0f 85 4b 02 00 00 48 8b 03 4c 8b 7b 
Complete report #630306
Frame # Function Binary Source or offset Line
1
__mem_cgroup_uncharge_common
vmlinux 0xffffffff811f00d7
Build id: 3.10.0-514.16.1.el7.x86_64
0x57
2
mem_cgroup_uncharge_cache_page
vmlinux 0xffffffff811f47c2
Build id: 3.10.0-514.16.1.el7.x86_64
0x12
3
__remove_mapping
vmlinux 0xffffffff811944eb
Build id: 3.10.0-514.16.1.el7.x86_64
0xeb
4
shrink_page_list
vmlinux 0xffffffff8119548e
Build id: 3.10.0-514.16.1.el7.x86_64
0x3ce
5
shrink_inactive_list
vmlinux 0xffffffff8119624a
Build id: 3.10.0-514.16.1.el7.x86_64
0x1fa
6
shrink_lruvec
vmlinux 0xffffffff81196de5
Build id: 3.10.0-514.16.1.el7.x86_64
0x385
7
shrink_zone
vmlinux 0xffffffff81197246
Build id: 3.10.0-514.16.1.el7.x86_64
0x76
8
do_try_to_free_pages
vmlinux 0xffffffff81197750
Build id: 3.10.0-514.16.1.el7.x86_64
0xf0
9
try_to_free_pages
vmlinux 0xffffffff81197c3c
Build id: 3.10.0-514.16.1.el7.x86_64
0xfc
10
__alloc_pages_slowpath
vmlinux 0xffffffff816823f8
Build id: 3.10.0-514.16.1.el7.x86_64
0x458
11
__alloc_pages_nodemask
vmlinux 0xffffffff8118b5c5
Build id: 3.10.0-514.16.1.el7.x86_64
0x405
12
alloc_pages_current
vmlinux 0xffffffff811cf77a
Build id: 3.10.0-514.16.1.el7.x86_64
0xaa
13
vmballoon_work
vmw_balloon 0xffffffffa0354ff8
Build id: 3.10.0-514.16.1.el7.x86_64
0x3b8
14
process_one_work
vmlinux 0xffffffff810a845b
Build id: 3.10.0-514.16.1.el7.x86_64
0x17b
15
worker_thread
vmlinux 0xffffffff810a9296
Build id: 3.10.0-514.16.1.el7.x86_64
0x126
16
? rescuer_thread
vmlinux 0xffffffff810a9170
Build id: 3.10.0-514.16.1.el7.x86_64
0x460
17
kthread
vmlinux 0xffffffff810b0a4f
Build id: 3.10.0-514.16.1.el7.x86_64
0xcf
18
? kthread_create_on_node
vmlinux 0xffffffff810b0980
Build id: 3.10.0-514.16.1.el7.x86_64
0x140
19
ret_from_fork
vmlinux 0xffffffff816970d8
Build id: 3.10.0-514.16.1.el7.x86_64
0x58
20
? kthread_create_on_node
vmlinux 0xffffffff810b0980
Build id: 3.10.0-514.16.1.el7.x86_64
0x140
NMI watchdog: BUG: soft lockup - CPU#1 stuck for 26s! [kworker/1:2:101937]
Modules linked in: ip6t_rpfilter ipt_REJECT nf_reject_ipv4 ip6t_REJECT nf_reject_ipv6 xt_conntrack ip_set nfnetlink ebtable_nat ebtable_broute bridge stp llc ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter vmw_vsock_vmci_transport vsock intel_powerclamp coretemp iosf_mbi crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd ppdev vmw_balloon pcspkr sg i2c_piix4 shpchp vmw_vmci parport_pc parport ip_tables xfs libcrc32c sd_mod crc_t10dif crct10dif_generic sr_mod cdrom ata_generic pata_acpi mptspi crct10dif_pclmul
crct10dif_common crc32c_intel vmwgfx drm_kms_helper syscopyarea ahci sysfillrect sysimgblt libahci fb_sys_fops serio_raw scsi_transport_spi ata_piix ttm drm vmxnet3 mptscsih libata mptbase i2c_core fjes dm_mirror dm_region_hash dm_log dm_mod
CPU: 1 PID: 101937 Comm: kworker/1:2 Tainted: G             L ------------   3.10.0-514.16.1.el7.x86_64 #1
Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 09/21/2015
Workqueue: events_freezable vmballoon_work [vmw_balloon]
task: ffff8804283c1f60 ti: ffff880307610000 task.ti: ffff880307610000
RIP: 0010:[<ffffffff811f00d7>]  [<ffffffff811f00d7>] __mem_cgroup_uncharge_common+0x57/0x2f0
RSP: 0018:ffff8803076136e8  EFLAGS: 00010202
RAX: 0000000000000002 RBX: ffff88017fc76400 RCX: 0000000000000460
RDX: ffff88043ffd6460 RSI: 0000000000000000 RDI: ffffea000478e9c0
RBP: ffff880307613718 R08: 0000000000000000 R09: ffff8800ac0f8b68
R10: ffff8803076136f0 R11: ffffea00064ff540 R12: ffff880307613768
R13: 000000018027001d R14: 0000000000000002 R15: ffff880307613690
FS:  0000000000000000(0000) GS:ffff88042d640000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa92e88c000 CR3: 0000000425661000 CR4: 00000000001407e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Stack:
ffff880000000000 ffffea000478e9c0 ffff88003618fe48 ffff88003618fe60
0000000000000001 0000000000000000 ffff880307613728 ffffffff811f47c2
ffff880307613768 ffffffff811944eb 000000005e29a29e ffff880307613b60
Call Trace:
[<ffffffff811f47c2>] mem_cgroup_uncharge_cache_page+0x12/0x20
[<ffffffff811944eb>] __remove_mapping+0xeb/0x1c0
[<ffffffff8119548e>] shrink_page_list+0x3ce/0xb00
[<ffffffff8119624a>] shrink_inactive_list+0x1fa/0x630
[<ffffffff81196de5>] shrink_lruvec+0x385/0x770
[<ffffffff81197246>] shrink_zone+0x76/0x1a0
[<ffffffff81197750>] do_try_to_free_pages+0xf0/0x4e0
[<ffffffff81197c3c>] try_to_free_pages+0xfc/0x180
[<ffffffff816823f8>] __alloc_pages_slowpath+0x458/0x725
[<ffffffff8118b5c5>] __alloc_pages_nodemask+0x405/0x420
[<ffffffff811cf77a>] alloc_pages_current+0xaa/0x170
[<ffffffffa0354ff8>] vmballoon_work+0x3b8/0x618 [vmw_balloon]
[<ffffffff810a845b>] process_one_work+0x17b/0x470
[<ffffffff810a9296>] worker_thread+0x126/0x410
[<ffffffff810a9170>] ? rescuer_thread+0x460/0x460
[<ffffffff810b0a4f>] kthread+0xcf/0xe0
[<ffffffff810b0980>] ? kthread_create_on_node+0x140/0x140
[<ffffffff816970d8>] ret_from_fork+0x58/0x90
[<ffffffff810b0980>] ? kthread_create_on_node+0x140/0x140
Code: 49 89 fc 41 89 f5 41 be 01 00 00 00 f6 c4 40 0f 85 77 01 00 00 4c 89 e7 e8 77 51 00 00 48 89 c3 48 8b 00 a8 02 0f 84 4d 01 00 00 <f0> 0f ba 2b 00 19 c0 85 c0 0f 85 4b 02 00 00 48 8b 03 4c 8b 7b 
Complete report #1251897
Frame # Function Binary Source or offset Line
1
__mem_cgroup_uncharge_common
vmlinux 0xffffffff8ec4ace7
Build id: 3.10.0-1160.108.1.el7.x86_64
0x57
2
mem_cgroup_uncharge_cache_page
vmlinux 0xffffffff8ec4f482
Build id: 3.10.0-1160.108.1.el7.x86_64
0x12
3
__remove_mapping
vmlinux 0xffffffff8ebdd36a
Build id: 3.10.0-1160.108.1.el7.x86_64
0xaa
4
? page_get_anon_vma
vmlinux 0xffffffff8ec0edc0
Build id: 3.10.0-1160.108.1.el7.x86_64
0x80
5
shrink_page_list
vmlinux 0xffffffff8ebde4e5
Build id: 3.10.0-1160.108.1.el7.x86_64
0x3c5
6
shrink_inactive_list
vmlinux 0xffffffff8ebdf376
Build id: 3.10.0-1160.108.1.el7.x86_64
0x1b6
7
shrink_lruvec
vmlinux 0xffffffff8ebdfe55
Build id: 3.10.0-1160.108.1.el7.x86_64
0x375
8
shrink_zone
vmlinux 0xffffffff8ebe0286
Build id: 3.10.0-1160.108.1.el7.x86_64
0x76
9
do_try_to_free_pages
vmlinux 0xffffffff8ebe0780
Build id: 3.10.0-1160.108.1.el7.x86_64
0xf0
10
try_to_free_pages
vmlinux 0xffffffff8ebe0cac
Build id: 3.10.0-1160.108.1.el7.x86_64
0xfc
11
__alloc_pages_nodemask
vmlinux 0xffffffff8ebd4611
Build id: 3.10.0-1160.108.1.el7.x86_64
0x841
12
alloc_pages_current
vmlinux 0xffffffff8ec25a48
Build id: 3.10.0-1160.108.1.el7.x86_64
0x98
13
vmballoon_work
vmw_balloon 0xffffffffc0492fb4
Build id: 3.10.0-1160.108.1.el7.x86_64
0x464
14
process_one_work
vmlinux 0xffffffff8eac32ef
Build id: 3.10.0-1160.108.1.el7.x86_64
0x17f
15
worker_thread
vmlinux 0xffffffff8eac4436
Build id: 3.10.0-1160.108.1.el7.x86_64
0x126
16
? manage_workers.isra.26
vmlinux 0xffffffff8eac4310
Build id: 3.10.0-1160.108.1.el7.x86_64
0x2b0
17
kthread
vmlinux 0xffffffff8eacb621
Build id: 3.10.0-1160.108.1.el7.x86_64
0xd1
18
? insert_kthread_work
vmlinux 0xffffffff8eacb550
Build id: 3.10.0-1160.108.1.el7.x86_64
0x40
19
ret_from_fork_nospec_begin
vmlinux 0xffffffff8f1c51f7
Build id: 3.10.0-1160.108.1.el7.x86_64
0x21
20
? insert_kthread_work
vmlinux 0xffffffff8eacb550
Build id: 3.10.0-1160.108.1.el7.x86_64
0x40
NMI watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [kworker/1:1:532]
Modules linked in: binfmt_misc ip_vs nf_conntrack vmw_vsock_vmci_transport vsock ext4 mbcache jbd2 sb_edac iosf_mbi crc32_pclmul ghash_clmulni_intel ppdev aesni_intel lrw gf128mul vmw_balloon glue_helper ablk_helper cryptd joydev vmw_vmci sg pcspkr i2c_piix4 parport_pc parport ip_tables xfs libcrc32c ata_generic pata_acpi vmwgfx drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm drm sd_mod crc_t10dif crct10dif_generic ahci ata_piix libahci libata crct10dif_pclmul crct10dif_common crc32c_intel nfit serio_raw libnvdimm vmxnet3 vmw_pvscsi drm_panel_orientation_quirks dm_mirror dm_region_hash dm_log dm_mod fuse
CPU: 1 PID: 532 Comm: kworker/1:1 Tainted: G             L ------------   3.10.0-1160.108.1.el7.x86_64 #1
Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020
Workqueue: events_freezable vmballoon_work [vmw_balloon]
task: ffff9061f48ee300 ti: ffff906a6fb78000 task.ti: ffff906a6fb78000
RIP: 0010:[<ffffffff8ec4ace7>]  [<ffffffff8ec4ace7>] __mem_cgroup_uncharge_common+0x57/0x2f0
RSP: 0018:ffff906a6fb7b760  EFLAGS: 00010202
RAX: 0000000000000002 RBX: ffff9061f48ee368 RCX: 00000000ffffffca
RDX: ffff906abffd8fe0 RSI: 0000000000000000 RDI: 00000000003f9d2e
RBP: ffff906a6fb7b790 R08: 0000000000000000 R09: 0000000000000046
R10: 0000000000000230 R11: fff00000f0000000 R12: ffff906a9a65acc0
R13: ffffffff8eae918c R14: ffff906a6fb7b6e8 R15: ffffffff8eae8699
FS:  0000000000000000(0000) GS:ffff906a9a640000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff0bac69000 CR3: 00000008cbaca000 CR4: 00000000001607e0
Call Trace:
[<ffffffff8ec4f482>] mem_cgroup_uncharge_cache_page+0x12/0x20
[<ffffffff8ebdd36a>] __remove_mapping+0xaa/0x180
[<ffffffff8ec0edc0>] ? page_get_anon_vma+0x80/0x80
[<ffffffff8ebde4e5>] shrink_page_list+0x3c5/0xc40
[<ffffffff8ebdf376>] shrink_inactive_list+0x1b6/0x5c0
[<ffffffff8ebdfe55>] shrink_lruvec+0x375/0x730
[<ffffffff8ebe0286>] shrink_zone+0x76/0x1a0
[<ffffffff8ebe0780>] do_try_to_free_pages+0xf0/0x520
[<ffffffff8ebe0cac>] try_to_free_pages+0xfc/0x180
[<ffffffff8ebd4611>] __alloc_pages_nodemask+0x841/0xbf0
[<ffffffff8ec25a48>] alloc_pages_current+0x98/0x110
[<ffffffffc0492fb4>] vmballoon_work+0x464/0x70f [vmw_balloon]
[<ffffffff8eac32ef>] process_one_work+0x17f/0x440
[<ffffffff8eac4436>] worker_thread+0x126/0x3c0
[<ffffffff8eac4310>] ? manage_workers.isra.26+0x2b0/0x2b0
[<ffffffff8eacb621>] kthread+0xd1/0xe0
[<ffffffff8eacb550>] ? insert_kthread_work+0x40/0x40
[<ffffffff8f1c51f7>] ret_from_fork_nospec_begin+0x21/0x21
[<ffffffff8eacb550>] ? insert_kthread_work+0x40/0x40
Code: 49 89 fc 41 89 f5 41 be 01 00 00 00 f6 c4 40 0f 85 7f 01 00 00 4c 89 e7 e8 e7 52 00 00 48 89 c3 48 8b 00 a8 02 0f 84 4d 01 00 00 <f0> 0f ba 2b 00 19 c0 85 c0 0f 85 4b 02 00 00 48 8b 03 4c 8b 7b 
Complete report #1022331
Frame # Function Binary Source or offset Line
1
__mem_cgroup_uncharge_common
vmlinux 0xffffffff811f1df7
Build id: 3.10.0-693.el7.x86_64
0x57
2
mem_cgroup_uncharge_cache_page
vmlinux 0xffffffff811f6402
Build id: 3.10.0-693.el7.x86_64
0x12
3
__remove_mapping
vmlinux 0xffffffff811951da
Build id: 3.10.0-693.el7.x86_64
0xaa
4
shrink_page_list
vmlinux 0xffffffff81196318
Build id: 3.10.0-693.el7.x86_64
0x598
5
shrink_inactive_list
vmlinux 0xffffffff81196e7a
Build id: 3.10.0-693.el7.x86_64
0x1ca
6
shrink_lruvec
vmlinux 0xffffffff81197975
Build id: 3.10.0-693.el7.x86_64
0x385
7
shrink_zone
vmlinux 0xffffffff81197d96
Build id: 3.10.0-693.el7.x86_64
0x76
8
do_try_to_free_pages
vmlinux 0xffffffff811982a0
Build id: 3.10.0-693.el7.x86_64
0xf0
9
? autoremove_wake_function
vmlinux 0xffffffff810b193b
Build id: 3.10.0-693.el7.x86_64
0x2b
10
try_to_free_pages
vmlinux 0xffffffff8119878c
Build id: 3.10.0-693.el7.x86_64
0xfc
11
__alloc_pages_slowpath
vmlinux 0xffffffff8169fb0b
Build id: 3.10.0-693.el7.x86_64
0x457
12
__alloc_pages_nodemask
vmlinux 0xffffffff8118cd85
Build id: 3.10.0-693.el7.x86_64
0x405
13
alloc_pages_current
vmlinux 0xffffffff811d1108
Build id: 3.10.0-693.el7.x86_64
0x98
14
vmballoon_work
vmw_balloon 0xffffffffc0337fd8
Build id: 3.10.0-693.el7.x86_64
0x3b8
15
process_one_work
vmlinux 0xffffffff810a881a
Build id: 3.10.0-693.el7.x86_64
0x17a
16
worker_thread
vmlinux 0xffffffff810a94e6
Build id: 3.10.0-693.el7.x86_64
0x126
17
? manage_workers.isra.24
vmlinux 0xffffffff810a93c0
Build id: 3.10.0-693.el7.x86_64
0x2a0
18
kthread
vmlinux 0xffffffff810b098f
Build id: 3.10.0-693.el7.x86_64
0xcf
19
? do_exit
vmlinux 0xffffffff8108ddeb
Build id: 3.10.0-693.el7.x86_64
0x6bb
20
? insert_kthread_work
vmlinux 0xffffffff810b08c0
Build id: 3.10.0-693.el7.x86_64
0x40
21
ret_from_fork
vmlinux 0xffffffff816b4f18
Build id: 3.10.0-693.el7.x86_64
0x58
22
? insert_kthread_work
vmlinux 0xffffffff810b08c0
Build id: 3.10.0-693.el7.x86_64
0x40
NMI watchdog: BUG: soft lockup - CPU#5 stuck for 22s! [kworker/5:1:12883]
Modules linked in: ip6t_rpfilter ipt_REJECT nf_reject_ipv4 ip6t_REJECT nf_reject_ipv6 xt_conntrack ip_set nfnetlink ebtable_nat ebtable_broute bridge stp llc ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter vmw_vsock_vmci_transport vsock coretemp crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd ppdev joydev pcspkr sg vmw_balloon parport_pc parport shpchp i2c_piix4 vmw_vmci ip_tables xfs libcrc32c sr_mod cdrom sd_mod crc_t10dif crct10dif_generic ata_generic pata_acpi vmwgfx drm_kms_helper syscopyarea sysfillrect
sysimgblt fb_sys_fops ttm drm ata_piix crct10dif_pclmul crct10dif_common mptspi crc32c_intel libata scsi_transport_spi serio_raw mptscsih mptbase vmxnet3 i2c_core floppy dm_mirror dm_region_hash dm_log dm_mod
CPU: 5 PID: 12883 Comm: kworker/5:1 Tainted: G             L ------------   3.10.0-693.el7.x86_64 #1
Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 09/21/2015
Workqueue: events_freezable vmballoon_work [vmw_balloon]
task: ffff880078cb9fa0 ti: ffff88001ed78000 task.ti: ffff88001ed78000
RIP: 0010:[<ffffffff811f1df7>]  [<ffffffff811f1df7>] __mem_cgroup_uncharge_common+0x57/0x2f0
RSP: 0018:ffff88001ed7b6e8  EFLAGS: 00010202
RAX: 0000000000000002 RBX: ffffea000723bcc0 RCX: 00000000ffffffc0
RDX: ffff88033ffd5c80 RSI: 0000000000000000 RDI: 0000000000324b78
RBP: ffff88001ed7b718 R08: 0000000000000000 R09: ffff88007b10d918
R10: ffff88001ed7b6f0 R11: 000000000000001e R12: 0000000000000246
R13: 0000000000000246 R14: ffffffffc027a17f R15: ffff88001ed7b668
FS:  0000000000000000(0000) GS:ffff88033fd40000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00007f7999170fe8 CR3: 00000000019f2000 CR4: 00000000000007e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Stack:
ffff880000000000 ffffea000c92de00 ffff88005b835178 0000000000000001
ffff88005b835160 0000000000000000 ffff88001ed7b728 ffffffff811f6402
ffff88001ed7b768 ffffffff811951da 00000000f37ab30d ffff88001ed7bb60
Call Trace:
[<ffffffff811f6402>] mem_cgroup_uncharge_cache_page+0x12/0x20
[<ffffffff811951da>] __remove_mapping+0xaa/0x180
[<ffffffff81196318>] shrink_page_list+0x598/0xad0
[<ffffffff81196e7a>] shrink_inactive_list+0x1ca/0x5d0
[<ffffffff81197975>] shrink_lruvec+0x385/0x730
[<ffffffff81197d96>] shrink_zone+0x76/0x1a0
[<ffffffff811982a0>] do_try_to_free_pages+0xf0/0x4e0
[<ffffffff810b193b>] ? autoremove_wake_function+0x2b/0x40
[<ffffffff8119878c>] try_to_free_pages+0xfc/0x180
[<ffffffff8169fb0b>] __alloc_pages_slowpath+0x457/0x724
[<ffffffff8118cd85>] __alloc_pages_nodemask+0x405/0x420
[<ffffffff811d1108>] alloc_pages_current+0x98/0x110
[<ffffffffc0337fd8>] vmballoon_work+0x3b8/0x615 [vmw_balloon]
[<ffffffff810a881a>] process_one_work+0x17a/0x440
[<ffffffff810a94e6>] worker_thread+0x126/0x3c0
[<ffffffff810a93c0>] ? manage_workers.isra.24+0x2a0/0x2a0
[<ffffffff810b098f>] kthread+0xcf/0xe0
[<ffffffff8108ddeb>] ? do_exit+0x6bb/0xa40
[<ffffffff810b08c0>] ? insert_kthread_work+0x40/0x40
[<ffffffff816b4f18>] ret_from_fork+0x58/0x90
[<ffffffff810b08c0>] ? insert_kthread_work+0x40/0x40
Code: 49 89 fc 41 89 f5 41 be 01 00 00 00 f6 c4 40 0f 85 77 01 00 00 4c 89 e7 e8 97 50 00 00 48 89 c3 48 8b 00 a8 02 0f 84 4d 01 00 00 <f0> 0f ba 2b 00 19 c0 85 c0 0f 85 4b 02 00 00 48 8b 03 4c 8b 7b 
Complete report #888881
Frame # Function Binary Source or offset Line
1
__mem_cgroup_uncharge_common
vmlinux 0xffffffffa9e3adb7
Build id: 3.10.0-1062.12.1.el7.x86_64
0x57
2
mem_cgroup_uncharge_cache_page
vmlinux 0xffffffffa9e3f222
Build id: 3.10.0-1062.12.1.el7.x86_64
0x12
3
__remove_mapping
vmlinux 0xffffffffa9dd12ea
Build id: 3.10.0-1062.12.1.el7.x86_64
0xaa
4
? page_get_anon_vma
vmlinux 0xffffffffa9e00c00
Build id: 3.10.0-1062.12.1.el7.x86_64
0xa0
5
shrink_page_list
vmlinux 0xffffffffa9dd23f5
Build id: 3.10.0-1062.12.1.el7.x86_64
0x3c5
6
shrink_inactive_list
vmlinux 0xffffffffa9dd3286
Build id: 3.10.0-1062.12.1.el7.x86_64
0x1c6
7
shrink_lruvec
vmlinux 0xffffffffa9dd3d85
Build id: 3.10.0-1062.12.1.el7.x86_64
0x385
8
? xfs_perag_get_tag
xfs 0xffffffffc04e0152
Build id: 3.10.0-1062.12.1.el7.x86_64
0x42
9
shrink_zone
vmlinux 0xffffffffa9dd41b6
Build id: 3.10.0-1062.12.1.el7.x86_64
0x76
10
do_try_to_free_pages
vmlinux 0xffffffffa9dd46a0
Build id: 3.10.0-1062.12.1.el7.x86_64
0xf0
11
try_to_free_pages
vmlinux 0xffffffffa9dd4bcc
Build id: 3.10.0-1062.12.1.el7.x86_64
0xfc
12
__alloc_pages_nodemask
vmlinux 0xffffffffa9dc87f1
Build id: 3.10.0-1062.12.1.el7.x86_64
0x831
13
? __list_add
vmlinux 0xffffffffa9fa11d3
Build id: 3.10.0-1062.12.1.el7.x86_64
0x33
14
alloc_pages_current
vmlinux 0xffffffffa9e16ba8
Build id: 3.10.0-1062.12.1.el7.x86_64
0x98
15
vmballoon_work
vmw_balloon 0xffffffffc05a2f84
Build id: 3.10.0-1062.12.1.el7.x86_64
0x454
16
process_one_work
vmlinux 0xffffffffa9cbe21f
Build id: 3.10.0-1062.12.1.el7.x86_64
0x17f
17
worker_thread
vmlinux 0xffffffffa9cbf336
Build id: 3.10.0-1062.12.1.el7.x86_64
0x126
18
? manage_workers.isra.26
vmlinux 0xffffffffa9cbf210
Build id: 3.10.0-1062.12.1.el7.x86_64
0x2a0
19
kthread
vmlinux 0xffffffffa9cc61f1
Build id: 3.10.0-1062.12.1.el7.x86_64
0xd1
20
? insert_kthread_work
vmlinux 0xffffffffa9cc6120
Build id: 3.10.0-1062.12.1.el7.x86_64
0x40
21
ret_from_fork_nospec_begin
vmlinux 0xffffffffaa38dd37
Build id: 3.10.0-1062.12.1.el7.x86_64
0x21
22
? insert_kthread_work
vmlinux 0xffffffffa9cc6120
Build id: 3.10.0-1062.12.1.el7.x86_64
0x40
NMI watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [kworker/1:1:22112]
Modules linked in: nfsv3 nfs_acl rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 tun bridge stp llc ebtable_filter ebtables ip6table_filter ip6_tables devlink iptable_filter vmw_vsock_vmci_transport vsock sunrpc ppdev vmw_balloon coretemp pcspkr joydev sg parport_pc vmw_vmci parport i2c_piix4 ip_tables xfs libcrc32c sr_mod cdrom sd_mod crc_t10dif crct10dif_generic crct10dif_common ata_generic vmwgfx drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops pata_acpi ttm drm mptspi scsi_transport_spi ata_piix mptscsih mptbase libata serio_raw crc32c_intel vmxnet3 drm_panel_orientation_quirks
floppy dm_mirror dm_region_hash dm_log dm_mod
CPU: 1 PID: 22112 Comm: kworker/1:1 Kdump: loaded Tainted: G             L ------------   3.10.0-1062.12.1.el7.x86_64 #1
Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 09/30/2014
Workqueue: events_freezable vmballoon_work [vmw_balloon]
task: ffff8c76c832e2a0 ti: ffff8c750f738000 task.ti: ffff8c750f738000
RIP: 0010:[<ffffffffa9e3adb7>]  [<ffffffffa9e3adb7>] __mem_cgroup_uncharge_common+0x57/0x2f0
RSP: 0018:ffff8c750f73b760  EFLAGS: 00010202
RAX: 0000000000000002 RBX: ffff8c76ffc40000 RCX: 00000000ffffff83
RDX: ffff8c76fffd21c0 RSI: 0000000000000000 RDI: 00000000000706a0
RBP: ffff8c750f73b790 R08: 0000000000000000 R09: 0000000000000046
R10: 0000000000000230 R11: ffffffffffffffff R12: ffff8c750f73b728
R13: ffff8c750f73b738 R14: ffff8c76c832e308 R15: ffff8c757b7ce308
FS:  0000000000000000(0000) GS:ffff8c76ffc40000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3c7ff97b00 CR3: 00000000b9df8000 CR4: 00000000000007e0
Call Trace:
[<ffffffffa9e3f222>] mem_cgroup_uncharge_cache_page+0x12/0x20
[<ffffffffa9dd12ea>] __remove_mapping+0xaa/0x180
[<ffffffffa9e00c00>] ? page_get_anon_vma+0xa0/0xa0
[<ffffffffa9dd23f5>] shrink_page_list+0x3c5/0xc30
[<ffffffffa9dd3286>] shrink_inactive_list+0x1c6/0x5d0
[<ffffffffa9dd3d85>] shrink_lruvec+0x385/0x740
[<ffffffffc04e0152>] ? xfs_perag_get_tag+0x42/0xe0 [xfs]
[<ffffffffa9dd41b6>] shrink_zone+0x76/0x1a0
[<ffffffffa9dd46a0>] do_try_to_free_pages+0xf0/0x520
[<ffffffffa9dd4bcc>] try_to_free_pages+0xfc/0x180
[<ffffffffa9dc87f1>] __alloc_pages_nodemask+0x831/0xbe0
[<ffffffffa9fa11d3>] ? __list_add+0x33/0xc0
[<ffffffffa9e16ba8>] alloc_pages_current+0x98/0x110
[<ffffffffc05a2f84>] vmballoon_work+0x454/0x6ff [vmw_balloon]
[<ffffffffa9cbe21f>] process_one_work+0x17f/0x440
[<ffffffffa9cbf336>] worker_thread+0x126/0x3c0
[<ffffffffa9cbf210>] ? manage_workers.isra.26+0x2a0/0x2a0
[<ffffffffa9cc61f1>] kthread+0xd1/0xe0
[<ffffffffa9cc6120>] ? insert_kthread_work+0x40/0x40
[<ffffffffaa38dd37>] ret_from_fork_nospec_begin+0x21/0x21
[<ffffffffa9cc6120>] ? insert_kthread_work+0x40/0x40
Code: 49 89 fc 41 89 f5 41 be 01 00 00 00 f6 c4 40 0f 85 77 01 00 00 4c 89 e7 e8 57 4f 00 00 48 89 c3 48 8b 00 a8 02 0f 84 4d 01 00 00 <f0> 0f ba 2b 00 19 c0 85 c0 0f 85 4b 02 00 00 48 8b 03 4c 8b 7b 
Complete report #332909
Frame # Function Binary Source or offset Line
1
__mem_cgroup_uncharge_common
vmlinux 0xffffffff9103198c
Build id: 3.10.0-957.el7.x86_64
0x4c
2
mem_cgroup_uncharge_cache_page
vmlinux 0xffffffff91036122
Build id: 3.10.0-957.el7.x86_64
0x12
3
__remove_mapping
vmlinux 0xffffffff90fc98ea
Build id: 3.10.0-957.el7.x86_64
0xaa
4
? page_get_anon_vma
vmlinux 0xffffffff90ff8780
Build id: 3.10.0-957.el7.x86_64
0xa0
5
shrink_page_list
vmlinux 0xffffffff90fca865
Build id: 3.10.0-957.el7.x86_64
0x3c5
6
shrink_inactive_list
vmlinux 0xffffffff90fcb6f6
Build id: 3.10.0-957.el7.x86_64
0x1c6
7
shrink_lruvec
vmlinux 0xffffffff90fcc1f5
Build id: 3.10.0-957.el7.x86_64
0x385
8
shrink_zone
vmlinux 0xffffffff90fcc616
Build id: 3.10.0-957.el7.x86_64
0x76
9
do_try_to_free_pages
vmlinux 0xffffffff90fccb20
Build id: 3.10.0-957.el7.x86_64
0xf0
10
try_to_free_pages
vmlinux 0xffffffff90fcd00c
Build id: 3.10.0-957.el7.x86_64
0xfc
11
__alloc_pages_slowpath
vmlinux 0xffffffff9155d16f
Build id: 3.10.0-957.el7.x86_64
0x457
12
__alloc_pages_nodemask
vmlinux 0xffffffff90fc0e95
Build id: 3.10.0-957.el7.x86_64
0x405
13
alloc_pages_current
vmlinux 0xffffffff9100dcf8
Build id: 3.10.0-957.el7.x86_64
0x98
14
vmballoon_work
vmw_balloon 0xffffffffc0407f84
Build id: 3.10.0-957.el7.x86_64
0x454
15
process_one_work
vmlinux 0xffffffff90eb9d4f
Build id: 3.10.0-957.el7.x86_64
0x17f
16
worker_thread
vmlinux 0xffffffff90ebade6
Build id: 3.10.0-957.el7.x86_64
0x126
17
? manage_workers.isra.25
vmlinux 0xffffffff90ebacc0
Build id: 3.10.0-957.el7.x86_64
0x2a0
18
kthread
vmlinux 0xffffffff90ec1c31
Build id: 3.10.0-957.el7.x86_64
0xd1
19
? insert_kthread_work
vmlinux 0xffffffff90ec1b60
Build id: 3.10.0-957.el7.x86_64
0x40
20
ret_from_fork_nospec_begin
vmlinux 0xffffffff91574c37
Build id: 3.10.0-957.el7.x86_64
0x21
21
? insert_kthread_work
vmlinux 0xffffffff90ec1b60
Build id: 3.10.0-957.el7.x86_64
0x40
NMI watchdog: BUG: soft lockup - CPU#0 stuck for 32s! [kworker/0:1:15152]
NMI watchdog: BUG: soft lockup - CPU#1 stuck for 32s! [kworker/1:1:16889]
Modules linked in: binfmt_misc ip6t_rpfilter ipt_REJECT nf_reject_ipv4 ip6t_REJECT nf_reject_ipv6 xt_conntrack ip_set nfnetlink ebtable_nat ebtable_broute bridge stp llc ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter vmw_vsock_vmci_transport vsock sb_edac coretemp iosf_mbi crc32_pclmul ghash_clmulni_intel ppdev aesni_intel lrw gf128mul glue_helper ablk_helper cryptd vmw_balloon sg pcspkr joydev parport_pc parport vmw_vmci i2c_piix4 ip_tables xfs libcrc32c sr_mod sd_mod cdrom crc_t10dif crct10dif_generic ata_generic pata_acpi crct10dif_pclmul crct10dif_common
crc32c_intel serio_raw vmwgfx drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm vmxnet3 drm ata_piix libata mptspi scsi_transport_spi mptscsih mptbase drm_panel_orientation_quirks dm_mirror dm_region_hash dm_log dm_mod
CPU: 1 PID: 16889 Comm: kworker/1:1 Kdump: loaded Tainted: G             L ------------   3.10.0-957.el7.x86_64 #1
Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 09/30/2014
Workqueue: events_freezable vmballoon_work [vmw_balloon]
task: ffff8ca9ef376180 ti: ffff8ca92b5e0000 task.ti: ffff8ca92b5e0000
RIP: 0010:[<ffffffff9103198c>]  [<ffffffff9103198c>] __mem_cgroup_uncharge_common+0x4c/0x2f0
RSP: 0018:ffff8ca92b5e36f0  EFLAGS: 00010282
RAX: ffff8ca93dd21b80 RBX: ffff8ca93fd43000 RCX: 00000000ffffffd6
RDX: ffff8ca9fffd87e0 RSI: 0000000000000000 RDI: 00000000001fa1b8
RBP: ffff8ca92b5e3720 R08: 0000000000000000 R09: 0000000000000046
R10: 0000000000000230 R11: 0000000000000000 R12: ffff8ca92b5e36b8
R13: ffff8ca92b5e3680 R14: ffff8ca9ef3761e8 R15: 0001ad4114cc78e7
FS:  0000000000000000(0000) GS:ffff8ca9ffc80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7068d23000 CR3: 0000000236a26000 CR4: 00000000001607e0
Call Trace:
[<ffffffff91036122>] mem_cgroup_uncharge_cache_page+0x12/0x20
[<ffffffff90fc98ea>] __remove_mapping+0xaa/0x180
[<ffffffff90ff8780>] ? page_get_anon_vma+0xa0/0xa0
[<ffffffff90fca865>] shrink_page_list+0x3c5/0xc30
[<ffffffff90fcb6f6>] shrink_inactive_list+0x1c6/0x5d0
[<ffffffff90fcc1f5>] shrink_lruvec+0x385/0x730
[<ffffffff90fcc616>] shrink_zone+0x76/0x1a0
[<ffffffff90fccb20>] do_try_to_free_pages+0xf0/0x4e0
[<ffffffff90fcd00c>] try_to_free_pages+0xfc/0x180
[<ffffffff9155d16f>] __alloc_pages_slowpath+0x457/0x724
[<ffffffff90fc0e95>] __alloc_pages_nodemask+0x405/0x420
[<ffffffff9100dcf8>] alloc_pages_current+0x98/0x110
[<ffffffffc0407f84>] vmballoon_work+0x454/0x6ff [vmw_balloon]
[<ffffffff90eb9d4f>] process_one_work+0x17f/0x440
[<ffffffff90ebade6>] worker_thread+0x126/0x3c0
[<ffffffff90ebacc0>] ? manage_workers.isra.25+0x2a0/0x2a0
[<ffffffff90ec1c31>] kthread+0xd1/0xe0
[<ffffffff90ec1b60>] ? insert_kthread_work+0x40/0x40
[<ffffffff91574c37>] ret_from_fork_nospec_begin+0x21/0x21
[<ffffffff90ec1b60>] ? insert_kthread_work+0x40/0x40
Code: 85 c0 0f 85 7b 01 00 00 48 8b 07 49 89 fc 41 89 f5 41 be 01 00 00 00 f6 c4 40 0f 85 77 01 00 00 4c 89 e7 e8 77 52 00 00 48 89 c3 <48> 8b 00 a8 02 0f 84 4d 01 00 00 f0 0f ba 2b 00 19 c0 85 c0 0f 
Complete report #249612
Frame # Function Binary Source or offset Line
1
__mem_cgroup_uncharge_common
vmlinux 0xffffffff97c3d2fc
Build id: 3.10.0-1160.11.1.el7.x86_64
0x4c
2
mem_cgroup_uncharge_cache_page
vmlinux 0xffffffff97c41972
Build id: 3.10.0-1160.11.1.el7.x86_64
0x12
3
__remove_mapping
vmlinux 0xffffffff97bd168a
Build id: 3.10.0-1160.11.1.el7.x86_64
0xaa
4
shrink_page_list
vmlinux 0xffffffff97bd27c5
Build id: 3.10.0-1160.11.1.el7.x86_64
0x3c5
5
shrink_inactive_list
vmlinux 0xffffffff97bd3646
Build id: 3.10.0-1160.11.1.el7.x86_64
0x1b6
6
shrink_lruvec
vmlinux 0xffffffff97bd4125
Build id: 3.10.0-1160.11.1.el7.x86_64
0x375
7
shrink_zone
vmlinux 0xffffffff97bd4556
Build id: 3.10.0-1160.11.1.el7.x86_64
0x76
8
do_try_to_free_pages
vmlinux 0xffffffff97bd4a40
Build id: 3.10.0-1160.11.1.el7.x86_64
0xf0
9
try_to_free_pages
vmlinux 0xffffffff97bd4f6c
Build id: 3.10.0-1160.11.1.el7.x86_64
0xfc
10
__alloc_pages_slowpath
vmlinux 0xffffffff9817c263
Build id: 3.10.0-1160.11.1.el7.x86_64
0x457
11
__alloc_pages_nodemask
vmlinux 0xffffffff97bc8f46
Build id: 3.10.0-1160.11.1.el7.x86_64
0x436
12
alloc_pages_current
vmlinux 0xffffffff97c18bb8
Build id: 3.10.0-1160.11.1.el7.x86_64
0x98
13
vmballoon_work
vmw_balloon 0xffffffffc0669f84
Build id: 3.10.0-1160.11.1.el7.x86_64
0x454
14
process_one_work
vmlinux 0xffffffff97abde9f
Build id: 3.10.0-1160.11.1.el7.x86_64
0x17f
15
worker_thread
vmlinux 0xffffffff97abefb6
Build id: 3.10.0-1160.11.1.el7.x86_64
0x126
16
? manage_workers.isra.26
vmlinux 0xffffffff97abee90
Build id: 3.10.0-1160.11.1.el7.x86_64
0x2a0
17
kthread
vmlinux 0xffffffff97ac5e71
Build id: 3.10.0-1160.11.1.el7.x86_64
0xd1
18
? insert_kthread_work
vmlinux 0xffffffff97ac5da0
Build id: 3.10.0-1160.11.1.el7.x86_64
0x40
19
ret_from_fork_nospec_begin
vmlinux 0xffffffff98193df7
Build id: 3.10.0-1160.11.1.el7.x86_64
0x21
20
? insert_kthread_work
vmlinux 0xffffffff97ac5da0
Build id: 3.10.0-1160.11.1.el7.x86_64
0x40
NMI watchdog: BUG: soft lockup - CPU#3 stuck for 29s! [kworker/3:1:3396]
Modules linked in: binfmt_misc ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 ipt_REJECT nf_reject_ipv4 xt_conntrack ebtable_nat ebtable_broute bridge stp llc ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat iptable_mangle iptable_security iptable_raw nf_conntrack ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter vmw_vsock_vmci_transport vsock sb_edac iosf_mbi crc32_pclmul ghash_clmulni_intel ppdev aesni_intel vmw_balloon pcspkr joydev sg parport_pc parport i2c_piix4 vmw_vmci sch_fq auth_rpcgss sunrpc ip_tables xfs libcrc32c sr_mod cdrom sd_mod crc_t10dif ata_generic pata_acpi vmwgfx drm_kms_helper crct10dif_pclmul syscopyarea sysfillrect sysimgblt
fb_sys_fops ttm serio_raw nfit ata_piix drm libnvdimm mptspi vmxnet3 libata scsi_transport_spi mptscsih mptbase drm_panel_orientation_quirks floppy dm_mirror dm_region_hash dm_log authenc cmac zlib wp512 twofish_generic twofish_avx_x86_64 twofish_x86_64_3way twofish_x86_64 twofish_common tea sha512_ssse3 sha512_generic serpent_avx_x86_64 serpent_sse2_x86_64 serpent_generic seed salsa20_generic salsa20_x86_64 rmd320 rmd256 rmd160 rmd128 michael_mic md4 khazad ghash_generic gcm fcrypt drbg dm_crypt dm_mod des_generic deflate cts crypto_null crct10dif_generic crct10dif_common crc32c_intel ccm cast6_avx_x86_64 cast6_generic cast_common camellia_generic camellia_aesni_avx_x86_64 ablk_helper cryptd camellia_x86_64 xts lrw gf128mul glue_helper blowfish_generic blowfish_x86_64 blowfish_common
arc4 ansi_cprng fuse [last unloaded: tcrypt]
CPU: 3 PID: 3396 Comm: kworker/3:1 Not tainted 3.10.0-1160.11.1.el7.x86_64 #1
Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 12/12/2018
Workqueue: events_freezable vmballoon_work [vmw_balloon]
task: ffff9d4b37d63180 ti: ffff9d4b38884000 task.ti: ffff9d4b38884000
RIP: 0010:[<ffffffff97c3d2fc>]  [<ffffffff97c3d2fc>] __mem_cgroup_uncharge_common+0x4c/0x2f0
RSP: 0018:ffff9d4b388876f8  EFLAGS: 00010282
RAX: ffff9d4729219c60 RBX: ffff9d4b38887708 RCX: 00000000ffffffca
RDX: 00000000027ab38c RSI: 0000000000000000 RDI: 000000000030d2bc
RBP: ffff9d4b38887728 R08: 0000000000000000 R09: 0000000000000046
R10: 0000000000000230 R11: ffff9d48ce208208 R12: fffff4d3cbd3fb80
R13: 0000000000000001 R14: ffff9d4b38887660 R15: ffff9d473fc00001
FS:  0000000000000000(0000) GS:ffff9d4dde6c0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe98b448008 CR3: 0000000581b88000 CR4: 00000000001607e0
Call Trace:
[<ffffffff97c41972>] mem_cgroup_uncharge_cache_page+0x12/0x20
[<ffffffff97bd168a>] __remove_mapping+0xaa/0x180
[<ffffffff97bd27c5>] shrink_page_list+0x3c5/0xc30
[<ffffffff97bd3646>] shrink_inactive_list+0x1b6/0x5c0
[<ffffffff97bd4125>] shrink_lruvec+0x375/0x730
[<ffffffff97bd4556>] shrink_zone+0x76/0x1a0
[<ffffffff97bd4a40>] do_try_to_free_pages+0xf0/0x520
[<ffffffff97bd4f6c>] try_to_free_pages+0xfc/0x180
[<ffffffff9817c263>] __alloc_pages_slowpath+0x457/0x729
[<ffffffff97bc8f46>] __alloc_pages_nodemask+0x436/0x450
[<ffffffff97c18bb8>] alloc_pages_current+0x98/0x110
[<ffffffffc0669f84>] vmballoon_work+0x454/0x6ff [vmw_balloon]
[<ffffffff97abde9f>] process_one_work+0x17f/0x440
[<ffffffff97abefb6>] worker_thread+0x126/0x3c0
[<ffffffff97abee90>] ? manage_workers.isra.26+0x2a0/0x2a0
[<ffffffff97ac5e71>] kthread+0xd1/0xe0
[<ffffffff97ac5da0>] ? insert_kthread_work+0x40/0x40
[<ffffffff98193df7>] ret_from_fork_nospec_begin+0x21/0x21
[<ffffffff97ac5da0>] ? insert_kthread_work+0x40/0x40
Code: 85 c0 0f 85 7b 01 00 00 48 8b 07 49 89 fc 41 89 f5 41 be 01 00 00 00 f6 c4 40 0f 85 77 01 00 00 4c 89 e7 e8 57 51 00 00 48 89 c3 <48> 8b 00 a8 02 0f 84 4d 01 00 00 f0 0f ba 2b 00 19 c0 85 c0 0f 
Complete report #168381
Frame # Function Binary Source or offset Line
1
__mem_cgroup_uncharge_common
vmlinux 0xffffffffafc3d11c
Build id: 3.10.0-1160.el7.x86_64
0x4c
2
mem_cgroup_uncharge_cache_page
vmlinux 0xffffffffafc41792
Build id: 3.10.0-1160.el7.x86_64
0x12
3
__remove_mapping
vmlinux 0xffffffffafbd14ba
Build id: 3.10.0-1160.el7.x86_64
0xaa
4
? page_get_anon_vma
vmlinux 0xffffffffafc02450
Build id: 3.10.0-1160.el7.x86_64
0x80
5
shrink_page_list
vmlinux 0xffffffffafbd25f5
Build id: 3.10.0-1160.el7.x86_64
0x3c5
6
shrink_inactive_list
vmlinux 0xffffffffafbd3476
Build id: 3.10.0-1160.el7.x86_64
0x1b6
7
shrink_lruvec
vmlinux 0xffffffffafbd3f55
Build id: 3.10.0-1160.el7.x86_64
0x375
8
? xfs_perag_get_tag
xfs 0xffffffffc0376302
Build id: 3.10.0-1160.el7.x86_64
0x42
9
shrink_zone
vmlinux 0xffffffffafbd4386
Build id: 3.10.0-1160.el7.x86_64
0x76
10
do_try_to_free_pages
vmlinux 0xffffffffafbd4870
Build id: 3.10.0-1160.el7.x86_64
0xf0
11
try_to_free_pages
vmlinux 0xffffffffafbd4d9c
Build id: 3.10.0-1160.el7.x86_64
0xfc
12
__alloc_pages_slowpath
vmlinux 0xffffffffb017c5f9
Build id: 3.10.0-1160.el7.x86_64
0x457
13
__alloc_pages_nodemask
vmlinux 0xffffffffafbc8d76
Build id: 3.10.0-1160.el7.x86_64
0x436
14
alloc_pages_current
vmlinux 0xffffffffafc189d8
Build id: 3.10.0-1160.el7.x86_64
0x98
15
vmballoon_work
vmw_balloon 0xffffffffc0490f84
Build id: 3.10.0-1160.el7.x86_64
0x454
16
process_one_work
vmlinux 0xffffffffafabdc4f
Build id: 3.10.0-1160.el7.x86_64
0x17f
17
worker_thread
vmlinux 0xffffffffafabed66
Build id: 3.10.0-1160.el7.x86_64
0x126
18
? manage_workers.isra.26
vmlinux 0xffffffffafabec40
Build id: 3.10.0-1160.el7.x86_64
0x2a0
19
kthread
vmlinux 0xffffffffafac5c21
Build id: 3.10.0-1160.el7.x86_64
0xd1
20
? insert_kthread_work
vmlinux 0xffffffffafac5b50
Build id: 3.10.0-1160.el7.x86_64
0x40
21
ret_from_fork_nospec_begin
vmlinux 0xffffffffb0193df7
Build id: 3.10.0-1160.el7.x86_64
0x21
22
? insert_kthread_work
vmlinux 0xffffffffafac5b50
Build id: 3.10.0-1160.el7.x86_64
0x40
NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [kworker/0:2:61353]
Modules linked in: tcp_lp nls_utf8 isofs xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun devlink ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 ipt_REJECT nf_reject_ipv4 xt_conntrack ebtable_nat ebtable_broute bridge stp llc ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat iptable_mangle iptable_security iptable_raw nf_conntrack ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter vmw_vsock_vmci_transport vsock sunrpc snd_seq_midi snd_seq_midi_event snd_ens1371 snd_rawmidi snd_ac97_codec ac97_bus iosf_mbi snd_seq crc32_pclmul ghash_clmulni_intel ppdev aesni_intel lrw snd_seq_device snd_pcm gf128mul glue_helper ablk_helper snd_timer snd cryptd
vmw_balloon sg pcspkr joydev soundcore parport_pc parport i2c_piix4 vmw_vmci ip_tables xfs libcrc32c sr_mod sd_mod cdrom crc_t10dif crct10dif_generic ata_generic pata_acpi vmwgfx drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm crct10dif_pclmul crct10dif_common crc32c_intel nfit libnvdimm drm mptspi scsi_transport_spi ata_piix mptscsih e1000 libata serio_raw mptbase drm_panel_orientation_quirks dm_mirror dm_region_hash dm_log dm_mod fuse
CPU: 0 PID: 61353 Comm: kworker/0:2 Kdump: loaded Not tainted 3.10.0-1160.el7.x86_64 #1
Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 07/29/2019
Workqueue: events_freezable vmballoon_work [vmw_balloon]
task: ffff911c2dea6300 ti: ffff911c1ad00000 task.ti: ffff911c1ad00000
RIP: 0010:[<ffffffffafc3d11c>]  [<ffffffffafc3d11c>] __mem_cgroup_uncharge_common+0x4c/0x2f0
RSP: 0000:ffff911c1ad036f8  EFLAGS: 00010282
RAX: ffff911cf0d0f2c0 RBX: ffffdcd482ec9500 RCX: 00000000ffffffe8
RDX: 0000000000ff9e58 RSI: 0000000000000000 RDI: 000000000013a9b8
RBP: ffff911c1ad03728 R08: 0000000000000000 R09: 0000000000000046
R10: 0000000000000230 R11: ffffdcd482eeb000 R12: ffff911c1ad036b8
R13: ffff911c1ad036c8 R14: ffff911c2dea6368 R15: ffff911bf45bb1e8
FS:  0000000000000000(0000) GS:ffff911cf9600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000006ec0f8 CR3: 000000006dd12000 CR4: 00000000003607f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
[<ffffffffafc41792>] mem_cgroup_uncharge_cache_page+0x12/0x20
[<ffffffffafbd14ba>] __remove_mapping+0xaa/0x180
[<ffffffffafc02450>] ? page_get_anon_vma+0x80/0x80
[<ffffffffafbd25f5>] shrink_page_list+0x3c5/0xc30
[<ffffffffafbd3476>] shrink_inactive_list+0x1b6/0x5c0
[<ffffffffafbd3f55>] shrink_lruvec+0x375/0x730
[<ffffffffc0376302>] ? xfs_perag_get_tag+0x42/0xe0 [xfs]
[<ffffffffafbd4386>] shrink_zone+0x76/0x1a0
[<ffffffffafbd4870>] do_try_to_free_pages+0xf0/0x520
[<ffffffffafbd4d9c>] try_to_free_pages+0xfc/0x180
[<ffffffffb017c5f9>] __alloc_pages_slowpath+0x457/0x729
[<ffffffffafbc8d76>] __alloc_pages_nodemask+0x436/0x450
[<ffffffffafc189d8>] alloc_pages_current+0x98/0x110
[<ffffffffc0490f84>] vmballoon_work+0x454/0x6ff [vmw_balloon]
[<ffffffffafabdc4f>] process_one_work+0x17f/0x440
[<ffffffffafabed66>] worker_thread+0x126/0x3c0
[<ffffffffafabec40>] ? manage_workers.isra.26+0x2a0/0x2a0
[<ffffffffafac5c21>] kthread+0xd1/0xe0
[<ffffffffafac5b50>] ? insert_kthread_work+0x40/0x40
[<ffffffffb0193df7>] ret_from_fork_nospec_begin+0x21/0x21
[<ffffffffafac5b50>] ? insert_kthread_work+0x40/0x40
Code: 85 c0 0f 85 7b 01 00 00 48 8b 07 49 89 fc 41 89 f5 41 be 01 00 00 00 f6 c4 40 0f 85 77 01 00 00 4c 89 e7 e8 57 51 00 00 48 89 c3 <48> 8b 00 a8 02 0f 84 4d 01 00 00 f0 0f ba 2b 00 19 c0 85 c0 0f 
Complete report #15814
Frame # Function Binary Source or offset Line
1
__mem_cgroup_uncharge_common
vmlinux 0xffffffff8343adb7
Build id: 3.10.0-1062.12.1.el7.x86_64
0x57
2
mem_cgroup_uncharge_cache_page
vmlinux 0xffffffff8343f222
Build id: 3.10.0-1062.12.1.el7.x86_64
0x12
3
__remove_mapping
vmlinux 0xffffffff833d12ea
Build id: 3.10.0-1062.12.1.el7.x86_64
0xaa
4
shrink_page_list
vmlinux 0xffffffff833d23f5
Build id: 3.10.0-1062.12.1.el7.x86_64
0x3c5
5
shrink_inactive_list
vmlinux 0xffffffff833d3286
Build id: 3.10.0-1062.12.1.el7.x86_64
0x1c6
6
shrink_lruvec
vmlinux 0xffffffff833d3d85
Build id: 3.10.0-1062.12.1.el7.x86_64
0x385
7
shrink_zone
vmlinux 0xffffffff833d41b6
Build id: 3.10.0-1062.12.1.el7.x86_64
0x76
8
do_try_to_free_pages
vmlinux 0xffffffff833d46a0
Build id: 3.10.0-1062.12.1.el7.x86_64
0xf0
9
try_to_free_pages
vmlinux 0xffffffff833d4bcc
Build id: 3.10.0-1062.12.1.el7.x86_64
0xfc
10
__alloc_pages_nodemask
vmlinux 0xffffffff833c87f1
Build id: 3.10.0-1062.12.1.el7.x86_64
0x831
11
alloc_pages_current
vmlinux 0xffffffff83416ba8
Build id: 3.10.0-1062.12.1.el7.x86_64
0x98
12
vmballoon_work
vmw_balloon 0xffffffffc057af84
Build id: 3.10.0-1062.12.1.el7.x86_64
0x454
13
process_one_work
vmlinux 0xffffffff832be21f
Build id: 3.10.0-1062.12.1.el7.x86_64
0x17f
14
worker_thread
vmlinux 0xffffffff832bf336
Build id: 3.10.0-1062.12.1.el7.x86_64
0x126
15
? manage_workers.isra.26
vmlinux 0xffffffff832bf210
Build id: 3.10.0-1062.12.1.el7.x86_64
0x2a0
16
kthread
vmlinux 0xffffffff832c61f1
Build id: 3.10.0-1062.12.1.el7.x86_64
0xd1
17
? insert_kthread_work
vmlinux 0xffffffff832c6120
Build id: 3.10.0-1062.12.1.el7.x86_64
0x40
18
ret_from_fork_nospec_begin
vmlinux 0xffffffff8398dd1d
Build id: 3.10.0-1062.12.1.el7.x86_64
0x7
19
? insert_kthread_work
vmlinux 0xffffffff832c6120
Build id: 3.10.0-1062.12.1.el7.x86_64
0x40
NMI watchdog: BUG: soft lockup - CPU#1 stuck for 43s! [kworker/1:1:188]
Modules linked in: ipt_REJECT nf_reject_ipv4 nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack vmw_vsock_vmci_transport vsock iptable_filter dm_mirror dm_region_hash dm_log dm_mod xfs libcrc32c ppdev vmw_balloon nfit libnvdimm iosf_mbi crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd joydev pcspkr sg vmw_vmci i2c_piix4 parport_pc parport ip_tables ext4 mbcache jbd2 sr_mod cdrom ata_generic pata_acpi vmwgfx drm_kms_helper sd_mod crc_t10dif crct10dif_generic syscopyarea sysfillrect sysimgblt fb_sys_fops ttm drm ata_piix libata crct10dif_pclmul crct10dif_common e1000 crc32c_intel serio_raw vmw_pvscsi drm_panel_orientation_quirks
CPU: 1 PID: 188 Comm: kworker/1:1 Kdump: loaded Tainted: G             L ------------   3.10.0-1062.12.1.el7.x86_64 #1
Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 09/21/2015
Workqueue: events_freezable vmballoon_work [vmw_balloon]
task: ffff8a061f1b0000 ti: ffff8a061f1ac000 task.ti: ffff8a061f1ac000
RIP: 0010:[<ffffffff8343adb7>]  [<ffffffff8343adb7>] __mem_cgroup_uncharge_common+0x57/0x2f0
RSP: 0018:ffff8a061f1af760  EFLAGS: 00010202
RAX: 0000000000000002 RBX: ffff89efffd5e400 RCX: 00000000ffffff9c
RDX: ffff8a1e3ffd32e0 RSI: 0000000000000000 RDI: 0000000002cb9558
RBP: ffff8a061f1af790 R08: 0000000000000000 R09: 0000000000000046
R10: 0000000000000230 R11: ffff8a0ecf465750 R12: 0000000000000002
R13: ffffbeb0cb5b3780 R14: 0000000000000001 R15: ffff8a06ffc00001
FS:  0000000000000000(0000) GS:ffff8a0620a40000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff4d3139b80 CR3: 0000000f06810000 CR4: 00000000003607e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
[<ffffffff8343f222>] mem_cgroup_uncharge_cache_page+0x12/0x20
[<ffffffff833d12ea>] __remove_mapping+0xaa/0x180
[<ffffffff833d23f5>] shrink_page_list+0x3c5/0xc30
[<ffffffff833d3286>] shrink_inactive_list+0x1c6/0x5d0
[<ffffffff833d3d85>] shrink_lruvec+0x385/0x740
[<ffffffff833d41b6>] shrink_zone+0x76/0x1a0
[<ffffffff833d46a0>] do_try_to_free_pages+0xf0/0x520
[<ffffffff833d4bcc>] try_to_free_pages+0xfc/0x180
[<ffffffff833c87f1>] __alloc_pages_nodemask+0x831/0xbe0
[<ffffffff83416ba8>] alloc_pages_current+0x98/0x110
[<ffffffffc057af84>] vmballoon_work+0x454/0x6ff [vmw_balloon]
[<ffffffff832be21f>] process_one_work+0x17f/0x440
[<ffffffff832bf336>] worker_thread+0x126/0x3c0
[<ffffffff832bf210>] ? manage_workers.isra.26+0x2a0/0x2a0
[<ffffffff832c61f1>] kthread+0xd1/0xe0
[<ffffffff832c6120>] ? insert_kthread_work+0x40/0x40
[<ffffffff8398dd1d>] ret_from_fork_nospec_begin+0x7/0x21
[<ffffffff832c6120>] ? insert_kthread_work+0x40/0x40
Code: 49 89 fc 41 89 f5 41 be 01 00 00 00 f6 c4 40 0f 85 77 01 00 00 4c 89 e7 e8 57 4f 00 00 48 89 c3 48 8b 00 a8 02 0f 84 4d 01 00 00 <f0> 0f ba 2b 00 19 c0 85 c0 0f 85 4b 02 00 00 48 8b 03 4c 8b 7b