Backtrace

general protection fault, probably for non-canonical address 0xb155fcadbdba6b2f: 0000 [#6] SMP NOPTI
CPU: 0 PID: 2955 Comm: ThreadPoolForeg Tainted: G      D    OE     5.8.18-100.fc31.x86_64 #1
Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
RIP: 0010:__kmalloc+0x9a/0x270
Code: 88 01 00 00 4d 8b 07 65 49 8b 50 08 65 4c 03 05 d4 ef d2 53 4d 8b 20 4d 85 e4 0f 84 a3 01 00 00 41 8b 47 20 49 8b 3f 4c 01 e0 <48> 8b 18 48 89 c1 49 33 9f 70 01 00 00 48 0f c9 48 31 cb 40 f6 c7
RSP: 0018:ffffb34d0c11ba70 EFLAGS: 00010282
RAX: b155fcadbdba6b2f RBX: 0000000000000000 RCX: 0000000000000000
RDX: 000000000000442b RSI: 0000000000000d40 RDI: 000000000002f0c0
RBP: 0000000000000d40 R08: ffff98099ba2f0c0 R09: 0000000000000018
R10: 00000000001836ae R11: ffff9808d6ab2b60 R12: b155fcadbdba6aff
R13: 0000000000000060 R14: ffff98099a803500 R15: ffff98099a803500
FS:  00007fd6330b7700(0000) GS:ffff98099ba00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5eb607dfa8 CR3: 00000001e2458000 CR4: 00000000000406f0
Call Trace:
 ? ext4_find_extent+0x2ae/0x370
 ext4_find_extent+0x2ae/0x370
 ext4_ext_map_blocks+0x54/0xfb0
 ? ext4_es_lookup_extent+0x95/0x200
 ext4_da_get_block_prep+0x2c0/0x3f0
 ? alloc_buffer_head+0x1b/0x60
 ext4_block_write_begin+0x14f/0x500
 ? ext4_da_reserve_space+0x110/0x110
 ext4_da_write_begin+0x1bc/0x480
 generic_perform_write+0xaf/0x190
 ext4_buffered_write_iter+0x8b/0x130
 ext4_file_write_iter+0x59/0x6e0
 new_sync_write+0x107/0x190
 vfs_write+0x1c3/0x1f0
 ksys_pwrite64+0x65/0xa0
 do_syscall_64+0x4d/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fd6460c125f
Code: 08 89 3c 24 48 89 4c 24 18 e8 9d f2 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 2d 44 89 c7 48 89 04 24 e8 cd f2 ff ff 48 8b
RSP: 002b:00007fd6330b6180 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007fd6330b61f0 RCX: 00007fd6460c125f
RDX: 0000000000000018 RSI: 00007fd6330b62a0 RDI: 0000000000000020
RBP: 00007fd6330b6270 R08: 0000000000000000 R09: 0000000000000ca7
R10: 0000000000000000 R11: 0000000000000293 R12: 00007fd6330b62a0
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000018
Modules linked in: vboxvideo(OE) xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_reject_ipv4 ip6table_mangle ip6table_nat iptable_mangle iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter tun bridge stp llc rfkill vboxsf(OE) binfmt_misc sunrpc iTCO_wdt intel_pmc_bxt iTCO_vendor_support kvm_amd lpc_ich ccp kvm irqbypass i2c_piix4 joydev pcspkr rapl ip_tables vmwgfx drm_kms_helper cec crct10dif_pclmul ttm crc32_pclmul crc32c_intel ghash_clmulni_intel drm serio_raw e1000 vboxguest(OE) video fuse