OPERATIONAL DEFECT DATABASE
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Installation of or upgrade to PowerPath for Linux 6.3 in an environment with Symantec Veritas VxVM Kernel panics may occur on Red Hat Enterprise Linux (RHEL) 7.x systems running PowerPath for Linux version 6.3 in conjunction with Symantec software (VRTSvxvm any version) which may result in data unavailability. EMC SW: PowerPath for Linux 6.3 Application SW: Symantec Veritas VxVM [ 671.516910] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 [ 671.516988] IP: [<ffffffffa12640a1>] atomic_read+0x1/0x10 [emcp] [ 671.517052] PGD 203028b067 PUD 203aa9e067 PMD 0 [ 671.517096] Oops: 0000 [#1] SMP [ 671.517129] Modules linked in: emcpdm(POE) emcpmpx(POE) emcpgpx(POE) emcp(POE) vxodm(POE) vxglm(POE) fuse mptctl mptbase dmpjbod(POE) dmpap(POE) dmpaa(POE) vxspec(POE) vxio(POE) ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter vxdmp(POE) bonding vxcafs(POE) vxportal(POE) fdd(POE) vxfs(POE) veki(POE) dm_mirror dm_region_hash dm_log 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 iTCO_wdt dm_mod ipmi_devintf iTCO_vendor_support hpwdt pcspkr ipmi_ssif sg wmi sb_edac hpilo edac_core lpc_ich shpchp ipmi_si ipmi_msghandler acpi_power_meter nfsd auth_rpcgss binfmt_misc nfs_acl lockd grace sunrpc ip_tables xfs sd_mod crc_t10dif crct10dif_generic crct10dif_pclmul crct10dif_common [ 671.517812] mgag200 crc32c_intel drm_kms_helper serio_raw igb(OE) syscopyarea sysfillrect sysimgblt fb_sys_fops ttm tg3(OE) dca i2c_algo_bit drm bnx2x(OE) qla2xxx(OE) mdio i2c_core ptp scsi_transport_fc pps_core hpsa(OE) scsi_tgt scsi_transport_sas libcrc32c fjes [last unloaded: emcpioc] [ 671.518053] CPU: 9 PID: 4829 Comm: vxconfigd Tainted: P W OE ------------ 3.10.0-514.el7.x86_64 #1 [ 671.518127] Hardware name: HP ProLiant DL580 Gen9/ProLiant DL580 Gen9, BIOS U17 10/01/2017 [ 671.518189] task: ffff880fe3f50fb0 ti: ffff880ff0eb0000 task.ti: ffff880ff0eb0000 [ 671.518245] RIP: 0010:[<ffffffffa12640a1>] [<ffffffffa12640a1>] atomic_read+0x1/0x10 [emcp] [ 671.518317] RSP: 0018:ffff880ff0eb3958 EFLAGS: 00010206 [ 671.518359] RAX: 0000000000000000 RBX: ffff88103814d320 RCX: 0000000000000000 [ 671.518412] RDX: 0000000000000000 RSI: ffff880ff1a4ca00 RDI: 0000000000000008 [ 671.518465] RBP: ffff880ff0eb3978 R08: 0000000000019a40 R09: ffff88103f0f6150 [ 671.518518] R10: ffff88018fc03d00 R11: ffff880ff1a4ca00 R12: ffff88103814d320 [ 671.518572] R13: ffff880fe3f50fb0 R14: ffff880fe3f50fb0 R15: ffff880ff1a4ca00 [ 671.518626] FS: 00007f3e9cc13700(0000) GS:ffff88103fd40000(0000) knlGS:0000000000000000 [ 671.518686] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 671.518730] CR2: 0000000000000008 CR3: 0000002030a1d000 CR4: 00000000003407e0 [ 671.518784] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 671.518838] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 671.518890] Stack: [ 671.518908] ffff880ff0eb3978 ffffffffa1265892 ffff880ff1a4ca00 ffff880ff1a4ca00 [ 671.518971] ffff880ff0eb39c0 ffffffff812ee4f9 0000000000000000 0000000000000000 [ 671.519034] 000000001ab93c91 0000000000000000 0000000000000010 0000000000000001 [ 671.519096] Call Trace: [ 671.519128] [<ffffffffa1265892>] ? emcp_mrf+0x32/0x60 [emcp] [ 671.519178] [<ffffffff812ee4f9>] generic_make_request+0x109/0x1e0 [ 671.519349] [<ffffffffa0d680ec>] vxvm_submit_diskio+0x3fc/0x7a0 [vxio] [ 671.519407] [<ffffffff810ea87a>] ? __getnstimeofday64+0x3a/0xd0 [ 671.519457] [<ffffffff810ea91e>] ? getnstimeofday64+0xe/0x30 [ 671.519592] [<ffffffffa0d5ac8b>] volsp_strategy+0x9b/0x100 [vxio] [ 671.519733] [<ffffffffa0d629bb>] vol_dev_strategy+0x1b/0x30 [vxio] [ 671.519872] [<ffffffffa0d66632>] voldiosio_start+0x392/0x5b0 [vxio] [ 671.520015] [<ffffffffa0d903d3>] volkcontext_process+0x183/0x230 [vxio] [ 671.520166] [<ffffffffa0dcfa8f>] volsiowait+0x9f/0x120 [vxio] [ 671.520216] [<ffffffff81098dcb>] ? mod_timer+0x14b/0x230 [ 671.520359] [<ffffffffa0e27310>] ? voldio+0xd60/0xd60 [vxio] [ 671.520407] [<ffffffff81098ec8>] ? add_timer+0x18/0x20 [ 671.520543] [<ffffffffa0d911b4>] ? voltimeout+0x74/0x110 [vxio] [ 671.520691] [<ffffffffa0e26ebf>] voldio+0x90f/0xd60 [vxio] [ 671.522682] [<ffffffffa0e27929>] vol_voldio_read+0x19/0x20 [vxio] [ 671.524644] [<ffffffffa0e28d1e>] volconfig_ioctl+0x3ae/0x970 [vxio] [ 671.526496] [<ffffffff811ddf75>] ? kmem_cache_alloc+0x35/0x1e0 [ 671.528352] [<ffffffff8120ebbf>] ? getname_flags+0x4f/0x1a0 [ 671.530164] [<ffffffff812a83e8>] ? security_capable+0x18/0x20 [ 671.532045] [<ffffffffa0e33b3e>] volsioctl_real+0x42e/0x500 [vxio] [ 671.533766] [<ffffffff810f4f30>] ? futex_wake+0x80/0x160 [ 671.535436] [<ffffffff81114512>] ? from_kgid_munged+0x12/0x20 [ 671.537059] [<ffffffff812036cf>] ? cp_new_stat+0x14f/0x180 [ 671.538631] [<ffffffffa078f40c>] vols_ioctl+0x5c/0xa0 [vxspec] [ 671.540155] [<ffffffffa078f471>] vols_unlocked_ioctl+0x21/0x30 [vxspec] [ 671.541655] [<ffffffff81211ed5>] do_vfs_ioctl+0x2d5/0x4b0 [ 671.543084] [<ffffffff8120373e>] ? SYSC_newstat+0x3e/0x60 [ 671.544474] [<ffffffff81212151>] SyS_ioctl+0xa1/0xc0 [ 671.545826] [<ffffffff816964c9>] system_call_fastpath+0x16/0x1b [ 671.547157] Code: e5 5d c3 0f 1f 80 00 00 00 00 48 c1 ef 09 55 48 83 f7 01 89 f8 48 89 e5 83 e0 01 5d c3 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 55 <8b> 07 48 89 e5 5d c3 0f 1f 84 00 00 00 00 00 55 89 37 48 89 e5 [ 671.550120] RIP [<ffffffffa12640a1>] atomic_read+0x1/0x10 [emcp] [ 671.551525] RSP <ffff880ff0eb3958> [ 671.552902] CR2: 0000000000000008
PowerPath Bug
Workaround: Users running RHEL 7.0, 7.1, 7.2, and 7.3 may use PowerPath for Linux 6.2. Fix: A patch for PowerPath for Linux 6.3 is under development by PowerPath Engineering
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