Kernel Panic in sock_def_wakeup() while using a common unix socket for inter-process communication.

Solution Unverified - Updated -

Issue

  • System crashed with RIP sock_def_wakeup.
[321769.408717] BUG: unable to handle kernel paging request at 0000003c00000008
[321769.408745] IP: [<ffffffffaa4333db>] sock_def_wakeup+0x1b/0x40
[321769.408765] PGD 80000032482fe067 PUD 0 
[321769.408778] Oops: 0000 [#1] SMP 
[321769.408789] Modules linked in: oracleacfs(POE) oracleadvm(POE) oracleoks(POE) macsec tcp_diag udp_diag inet_diag unix_diag af_packet_diag netlink_diag nfsv3 nfs_acl mpt2sas raid_class scsi_transport_sas mptctl mptbase bonding dell_rbu falcon_lsm_serviceable(PE) falcon_nf_netcontain(PE) falcon_lsm_pinned_10807(E) ib_isert iscsi_target_mod ib_srpt target_core_mod ib_srp scsi_transport_srp scsi_tgt ib_ipoib ib_umad rpcrdma rdma_ucm ib_uverbs ib_iser rdma_cm iw_cm ib_cm libiscsi scsi_transport_iscsi dell_smbios iTCO_wdt iTCO_vendor_support dell_wmi_descriptor dcdbas skx_edac intel_powerclamp coretemp intel_rapl iosf_mbi kvm_intel kvm irqbypass crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd qedr pcspkr ib_core joydev sg mei_me lpc_ich mei i2c_i801 wmi ipmi_si
[321769.409018]  ipmi_devintf ipmi_msghandler pcc_cpufreq acpi_power_meter tpm_crb acpi_pad binfmt_misc ip_tables xfs libcrc32c sd_mod sr_mod crc_t10dif cdrom crct10dif_generic mgag200 i2c_algo_bit drm_kms_helper qede syscopyarea sysfillrect sysimgblt fb_sys_fops ttm qed ahci crct10dif_pclmul crct10dif_common crc32c_intel drm libahci tg3 megaraid_sas libata crc8 ptp pps_core drm_panel_orientation_quirks nfit libnvdimm dm_mirror dm_region_hash dm_log dm_mod nfs lockd grace sunrpc fscache
[321769.409158] CPU: 31 PID: 114750 Comm: osysmond.bin Kdump: loaded Tainted: P        W  OE  ------------   3.10.0-1062.12.1.el7.x86_64 #1
[321769.409187] Hardware name: Dell Inc. PowerEdge R740/01KPX8, BIOS 2.10.0 11/12/2020
[321769.409207] task: ffffa0ea7e2f20e0 ti: ffffa0ed62f40000 task.ti: ffffa0ed62f40000
[321769.409225] RIP: 0010:[<ffffffffaa4333db>]  [<ffffffffaa4333db>] sock_def_wakeup+0x1b/0x40
[321769.409247] RSP: 0018:ffffa0ed62f43ef0  EFLAGS: 00010206
[321769.409260] RAX: 0000003c00000008 RBX: ffffa0e8acfcd000 RCX: 0000000000000000
[321769.409277] RDX: 0000000000000001 RSI: 0000000000000002 RDI: 0000003c00000000
[321769.409294] RBP: ffffa0ed62f43f18 R08: 0000000000000000 R09: 0000000000000000
[321769.409322] R10: 000000000000092c R11: 0000000000000000 R12: 0000000000000003
[321769.409338] R13: ffffa0e8acfcd360 R14: 0000000000000002 R15: 0000000000000000
[321769.409355] FS:  00007fb6d2b83700(0000) GS:ffffa1787bdc0000(0000) knlGS:0000000000000000
[321769.409374] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[321769.409387] CR2: 0000003c00000008 CR3: 000000367ee3c000 CR4: 00000000007607e0
[321769.409404] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[321769.409420] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[321769.409437] PKRU: 55555554
[321769.409445] Call Trace:
[321769.409455]  [<ffffffffaa50e135>] ? unix_shutdown+0xe5/0x180
[321769.409472]  [<ffffffffaa4318c3>] SyS_shutdown+0x93/0xa0
[321769.409487]  [<ffffffffaa58e172>] tracesys+0xa6/0xcc
[321769.409499] Code: c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 8b bf e0 00 00 00 f0 83 44 24 fc 00 48 85 ff 74 21 48 8d 47 08 <48> 39 47 08 74 17 55 31 c9 31 d2 be 01 00 00 00 48 89 e5 e8 fd 
[321769.409593] RIP  [<ffffffffaa4333db>] sock_def_wakeup+0x1b/0x40  
[321769.409609]  RSP <ffffa0ed62f43ef0>
[321769.409618] CR2: 0000003c00000008

Environment

  • Red Hat Enterprise Linux 7
  • 3rd party modules

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