PowerPath for Linux: Problema di interoperabilità tra PowerPath per Linux 6.3 e Veritas

Summary: Errore irreversibile del kernel può verificarsi sui sistemi Red Hat Enterprise Linux (RHEL) 7.x che eseguono PowerPath per Linux versione 6.3 in combinazione con il software Symantec (VRTSvxvm, qualsiasi versione) può causare nell'indisponibilità dei dati. ...

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Symptoms

Installazione o aggiornamento a PowerPath for Linux 6.3 in un ambiente con Symantec Veritas VxVM

Sui sistemi Red Hat Enterprise Linux (RHEL) 7.x che eseguono PowerPath for
Linux versione 6.3 in combinazione con il software Symantec (VRTSvxvm, qualsiasi versione), potrebbe verificarsi un errore irreversibile del kernel, con conseguente non disponibilità dei dati.

SW EMC: Software applicativo PowerPath per Linux 6.3
: Symantec Veritas VxVM 

[ 671.516910] BUG: impossibile gestire la dereferenziazione del puntatore NULL del kernel in 0000000000000008
[ 671.516988] Indirizzo IP: [<ffffffffa12640a1>] atomic_read+0x1/0x10 [EMCP]
[ 671.517052] PGD 203028b067 PUD 203aa9e067 PMD 0
[ 671.517096] Oops: SMP 0000 [#1]
[ 671.517129] Moduli collegati 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 iTCO_wdt dm_mod ipmi_devintf iTCO_vendor_support crittografato, HPWDT, PCSPKR, ipmi_ssif, SG, WMI, sb_edac, HPILO, edac_core lpc_ich, SFCHP, ipmi_si ipmi_msghandler acpi_power_meter, NFSD, auth_rpcgss binfmt_misc nfs_acl, Dell, Grace, SunRPPC, 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 [ultimo scaricamento: emcpioc]
[ 671.518053] Controllo: 9 PID: 4829 Comm: vxconfigd Contaminato: P W OE ------------ 3.10.0-514.el7.x86_64 #1
[ 671.518127] Nome dell'hardware: HP ProLiant DL580 Gen9/ProLiant DL580 Gen9, BIOS U17 10/01/2017
[ 671.518189] attività: ffff880fe3f50fb0 ti: ffff880ff0eb0000 attività.ti: ffff880ff0eb0000
[ 671.518245] STRAPPO: 0010:[<ffffffffa12640a1>] [<ffffffffa12640a1>] atomic_read+0x1/0x10 [emcp]
[ 671.518317] RSP: 0018:ffff880ff0eb3958 EFLAG: 00010206
[ 671.518359] RAX: 000000000000000 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:000000000000000000
[ 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] Pila
[ 671.518908] ffff880ff0eb3978 ffffffffa1265892 ffff880ff1a4ca00 ffff880ff1a4ca00
[ 671.518971] FFFF880FF0EB39C0 FFFFFFFF812EE4F9 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
[ 671.519034] 000000001ab93c91 00000000000000000 0000000000000010 0000000000000001
[ 671.519096] Traccia chiamate:
[ 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] Codice: 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 [<fffffffffa12640a1>] atomic_read+0x1/0x10 [emcp]
[ 671.551525] RSP <ffff880ff0eb3958>
[ 671.552902] CR2: 0000000000000008

Cause

PowerPath Bug

Resolution

Soluzione alternativa: Gli utenti che eseguono RHEL 7.0, 7.1, 7.2 e 7.3 possono utilizzare PowerPath per Linux 6.2.

Correzione: Una patch per PowerPath per Linux 6.3 è in fase di sviluppo da parte di PowerPath Engineering

Affected Products

Storage Networking
Article Properties
Article Number: 000054851
Article Type: Solution
Last Modified: 17 Oct 2025
Version:  4
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