Backtrace

BUG: stack guard page was hit at 00000000b5f93909 (stack is 0000000050b3967f..00000000174bdcd7)
kernel stack overflow (page fault): 0000 [#1] SMP PTI
CPU: 0 PID: 96593 Comm: insmod Tainted: G           OE     5.12.8-300.fc34.x86_64 #1
Hardware name: Dell Inc.                 OptiPlex 745                 /0RF703, BIOS 2.2.0  03/29/2007
RIP: 0010:tsync_probe+0x6c8/0x7d1 [tsync]
Code: c7 c6 80 08 ca c0 41 be fb ff ff ff 50 e8 63 3c f2 c3 48 89 dc eb 69 66 8b 50 02 31 c9 31 f6 86 f2 0f b7 d2 83 c2 04 48 63 fa <44> 0f b6 04 30 48 ff c6 4c 01 c1 48 39 f7 77 f0 86 e9 d1 ea 66 39
RSP: 0018:ffffab7200dbbbb8 EFLAGS: 00010216
RAX: ffffab7200dbbbb8 RBX: ffffab7200dbbbf8 RCX: 000000000001cb30
RDX: 0000000000008205 RSI: 0000000000000448 RDI: 0000000000008205
RBP: ffffab7200dbbc60 R08: 0000000000000000 R09: 0000000000019f5c
R10: ffffab7200dbb9b8 R11: ffffffff85b45f28 R12: ffff8d67eec58540
R13: ffff8d67c0bd4000 R14: 0000000000000000 R15: ffff8d67c0bd40c8
FS:  00007fd3bb489b80(0000) GS:ffff8d67f7c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffab7200dbc000 CR3: 0000000128c84000 CR4: 00000000000006f0
Call Trace:
 ? tsync_probe+0x497/0x7d1 [tsync]
 local_pci_probe+0x42/0x80
 ? __cond_resched+0x16/0x40
 pci_device_probe+0xd9/0x190
 really_probe+0xf2/0x440
 driver_probe_device+0xe1/0x150
 device_driver_attach+0xa1/0xb0
 __driver_attach+0x8a/0x150
 ? device_driver_attach+0xb0/0xb0
 ? device_driver_attach+0xb0/0xb0
 bus_for_each_dev+0x64/0x90
 bus_add_driver+0x12b/0x1e0
 driver_register+0x8f/0xe0
 ? 0xffffffffc0ca4000
 tsync_init_module+0xfd/0x1000 [tsync]
 do_one_initcall+0x44/0x1d0
 ? do_init_module+0x23/0x270
 ? kmem_cache_alloc_trace+0x119/0x210
 do_init_module+0x5c/0x270
 __do_sys_finit_module+0x98/0xe0
 do_syscall_64+0x33/0x40
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fd3bb5afe0d
Code: c8 0c 00 0f 05 eb a9 66 0f 1f 44 00 00 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 33 80 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007ffc5642fd18 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
RAX: ffffffffffffffda RBX: 000056055c9327b0 RCX: 00007fd3bb5afe0d
RDX: 0000000000000000 RSI: 000056055b5bea2a RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000770000007c
R10: 0000000000000003 R11: 0000000000000246 R12: 000056055b5bea2a
R13: 000056055c932760 R14: 000056055b5bd618 R15: 000056055c9328c0
Modules linked in: tsync(OE+) uinput rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace nfs_ssc fscache snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_tables ebtable_nat ebtable_broute ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw iptable_security ip_set nfnetlink rfkill ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter sunrpc snd_hda_codec_analog snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec snd_hda_core snd_hwdep snd_seq snd_seq_device snd_pcm snd_timer iTCO_wdt snd dcdbas intel_pmc_bxt soundcore iTCO_vendor_support ppdev coretemp
 parport_pc parport i2c_i801 lpc_ich i2c_smbus zram ip_tables xfs i915 i2c_algo_bit video drm_kms_helper cec drm aic7xxx tg3 serio_raw scsi_transport_spi ata_generic pata_acpi fuse [last unloaded: tsync]