System crashed at 'dup_mm+0x3af' after unloading 'traps'

Solution Unverified - Updated -

Issue

  • System crashed with the below log.
...
[71450066.789447] TRAPS: [data-link] released by [9556]
[71450066.790448] TRAPS: --- stopped ---
[71450077.704938] BUG: unable to handle kernel paging request at ffffffffc095b280
[71450077.705498] IP: [<ffffffffbdc8ef3f>] dup_mm+0x3af/0x710
[71450077.706022] PGD 252e12067 PUD 252e14067 PMD c4e3f0067 PTE 0
[71450077.706567] Oops: 0000 [#1] SMP 
[71450077.707129] Modules linked in: iptable_filter macsec vsock_diag tcp_diag udp_diag inet_diag unix_diag af_packet_diag netlink_diag nfsv3 nfs fscache vmw_vsock_vmci_transport vsock ext4 mbcache jbd2 iosf_mbi crc32_pclmul ghash_clmulni_intel ppdev aesni_intel lrw vmw_balloon gf128mul glue_helper ablk_helper cryptd joydev sg pcspkr nfit libnvdimm vmw_vmci shpchp i2c_piix4 parport_pc parport 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 crct10dif_pclmul ahci crct10dif_common ata_piix crc32c_intel libahci drm serio_raw libata vmxnet3 vmw_pvscsi i2c_core floppy dm_mirror dm_region_hash dm_log dm_mod [last unloaded: traps]
[71450077.710432] CPU: 2 PID: 15850 Comm: WdTlaSandbox Kdump: loaded Tainted: G           OE  ------------   3.10.0-862.9.1.el7.x86_64 #1
[71450077.711078] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 05/28/2020
[71450077.711755] task: ffff9bd9d3895ee0 ti: ffff9bdade9cc000 task.ti: ffff9bdade9cc000
[71450077.712450] RIP: 0010:[<ffffffffbdc8ef3f>]  [<ffffffffbdc8ef3f>] dup_mm+0x3af/0x710
[71450077.713180] RSP: 0018:ffff9bdade9cfdb0  EFLAGS: 00010282
[71450077.713904] RAX: 0000000000000000 RBX: ffff9be18deebaf8 RCX: 00007f6b4a0ce000
[71450077.714657] RDX: ffffffffc095b280 RSI: ffff9bd9e5b492c0 RDI: ffff9bda165f5780
[71450077.715419] RBP: ffff9bdade9cfe28 R08: ffff9bd9f61a32a8 R09: ffff9bdc5afb1110
[71450077.716199] R10: ffff9be8fffda000 R11: 0000000000000000 R12: ffff9bda165f5780
[71450077.716984] R13: 0000000000000000 R14: ffff9bdc5afb10f0 R15: ffff9bdd303d91b0
[71450077.717750] FS:  00007f6b5a165700(0000) GS:ffff9be8ffd00000(0000) knlGS:0000000000000000
[71450077.718197] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[71450077.718618] CR2: ffffffffc095b280 CR3: 00000001ac3e8000 CR4: 00000000007607e0
[71450077.719076] PKRU: 55555554
[71450077.719517] Call Trace:
[71450077.719953]  [<ffffffffbdc90722>] copy_process+0x1452/0x1a40
[71450077.720400]  [<ffffffffbdc90ec1>] do_fork+0x91/0x320
[71450077.720849]  [<ffffffffbdc911d6>] SyS_clone+0x16/0x20
[71450077.721303]  [<ffffffffbe320b54>] stub_clone+0x44/0x70
[71450077.721759]  [<ffffffffbe320795>] ? system_call_fastpath+0x1c/0x21
[71450077.722228] Code: 01 48 8b 75 98 48 89 da 4c 89 e7 48 89 45 a8 49 8d 47 20 48 89 45 a0 e8 30 77 13 00 49 8b 97 90 00 00 00 41 89 c5 48 85 d2 74 10 <48> 8b 12 48 85 d2 74 08 4c 89 ff e8 11 c1 2c 00 45 85 ed 0f 85 
[71450077.723350] RIP  [<ffffffffbdc8ef3f>] dup_mm+0x3af/0x710
[71450077.723894]  RSP <ffff9bdade9cfdb0>
[71450077.724459] CR2: ffffffffc095b280

Environment

  • Red Hat Enterprise Linux 7
  • 3rd party module traps was loaded

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