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Message-ID: <B22CAB4D-3649-4E45-A49C-57116652A5EF@cavium.com>
Date: Fri, 12 Jan 2018 00:21:44 +0000
From: "Madhani, Himanshu" <Himanshu.Madhani@...ium.com>
To: Abdul Haleem <abdhalee@...ux.vnet.ibm.com>
CC: Bart Van Assche <bart.vanassche@....com>,
"linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
"keescook@...omium.org" <keescook@...omium.org>,
"sim@...ux.vnet.ibm.com" <sim@...ux.vnet.ibm.com>,
"linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
"sfr@...b.auug.org.au" <sfr@...b.auug.org.au>,
"linux-next@...r.kernel.org" <linux-next@...r.kernel.org>,
"sachinp@...ux.vnet.ibm.com" <sachinp@...ux.vnet.ibm.com>,
"mpe@...erman.id.au" <mpe@...erman.id.au>
Subject: Re: [linux-next][qla2xxx][85caa95]kernel BUG at lib/list_debug.c:31!
> On Jan 10, 2018, at 9:38 PM, Abdul Haleem <abdhalee@...ux.vnet.ibm.com> wrote:
>
> On Tue, 2018-01-09 at 18:09 +0000, Madhani, Himanshu wrote:
>> Hello Abdul,
>>
>>> On Jan 9, 2018, at 7:54 AM, Bart Van Assche <bart.vanassche@....com> wrote:
>>>
>>> On Tue, 2018-01-09 at 14:44 +0530, Abdul Haleem wrote:
>>>> Greeting's,
>>>>
>>>> Linux next kernel panics on powerpc when module qla2xxx is load/unload.
>>>>
>>>> Machine Type: Power 8 PowerVM LPAR
>>>> Kernel : 4.15.0-rc2-next-20171211
>>>> gcc : version 4.8.5
>>>> Test type: module load/unload few times
>>>>
>>>> Trace messages:
>>>> ---------------
>>>> qla2xxx [0000:00:00.0]-0005: : QLogic Fibre Channel HBA Driver: 10.00.00.03-k.
>>>> qla2xxx [0106:a0:00.0]-001a: : MSI-X vector count: 32.
>>>> qla2xxx [0106:a0:00.0]-001d: : Found an ISP2532 irq 505 iobase 0x00000000aeb324e6.
>>>> qla2xxx [0106:a0:00.0]-00c6:1: MSI-X: Failed to enable support with 32 vectors, using 16 vectors.
>>>> qla2xxx [0106:a0:00.0]-00fb:1: QLogic QLE2562 - PCIe 2-port 8Gb FC Adapter.
>>>> qla2xxx [0106:a0:00.0]-00fc:1: ISP2532: PCIe (5.0GT/s x8) @ 0106:a0:00.0 hdma- host#=1 fw=8.06.00 (90d5).
>>>> qla2xxx [0106:a0:00.1]-001a: : MSI-X vector count: 32.
>>>> qla2xxx [0106:a0:00.1]-001d: : Found an ISP2532 irq 506 iobase 0x00000000a46f1774.
>>>> qla2xxx [0106:a0:00.1]-00c6:2: MSI-X: Failed to enable support with 32 vectors, using 16 vectors.
>>>> 2xxx
>>>> qla2xxx [0106:a0:00.1]-00fb:2: QLogic QLE2562 - PCIe 2-port 8Gb FC Adapter.
>>>> qla2xxx [0106:a0:00.1]-00fc:2: ISP2532: PCIe (5.0GT/s x8) @ 0106:a0:00.1 hdma- host#=2 fw=8.06.00 (90d5).
>>>> 0:00.0]-500a:1: LOOP UP detected (8 Gbps).
>>>> qla2xxx [0106:a0:00.1]-500a:2: LOOP UP detected (8 Gbps).
>>>> list_add double add: new=000000008d33e594, prev=000000008d33e594, next=00000000adef1df4.
>>>> ------------[ cut here ]------------
>>>> kernel BUG at lib/list_debug.c:31!
>>>> Oops: Exception in kernel mode, sig: 5 [#1]
>>>> LE SMP NR_CPUS=2048 NUMA pSeries
>>>> Dumping ftrace buffer:
>>>> (ftrace buffer empty)
>>>> Modules linked in: qla2xxx(E) tg3(E) ibmveth(E) xt_CHECKSUM(E)
>>>> iptable_mangle(E) ipt_MASQUERADE(E) nf_nat_masquerade_ipv4(E)
>>>> iptable_nat(E) nf_nat_ipv4(E) nf_nat(E) nf_conntrack_ipv4(E)
>>>> nf_defrag_ipv4(E) xt_conntrack(E) nf_conntrack(E) ipt_REJECT(E)
>>>> nf_reject_ipv4(E) tun(E) bridge(E) stp(E) llc(E) kvm_pr(E) kvm(E)
>>>> sctp_diag(E) sctp(E) libcrc32c(E) tcp_diag(E) udp_diag(E)
>>>> ebtable_filter(E) ebtables(E) dccp_diag(E) ip6table_filter(E) dccp(E)
>>>> ip6_tables(E) iptable_filter(E) inet_diag(E) unix_diag(E)
>>>> af_packet_diag(E) netlink_diag(E) xts(E) sg(E) vmx_crypto(E)
>>>> pseries_rng(E) nfsd(E) auth_rpcgss(E) nfs_acl(E) lockd(E) grace(E)
>>>> sunrpc(E) binfmt_misc(E) ip_tables(E) ext4(E) mbcache(E) jbd2(E)
>>>> fscrypto(E) sd_mod(E) ibmvscsi(E) scsi_transport_srp(E) nvme_fc(E)
>>>> nvme_fabrics(E) nvme_core(E) scsi_transport_fc(E)
>>>> ptp(E) pps_core(E) dm_mirror(E) dm_region_hash(E) dm_log(E) dm_mod(E)
>>>> [last unloaded: qla2xxx]
>>>> CPU: 7 PID: 22230 Comm: qla2xxx_1_dpc Tainted: G E 4.15.0-rc2-next-20171211-autotest-autotest #1
>>>> NIP: c000000000511040 LR: c00000000051103c CTR: 0000000000655170
>>>> REGS: 000000009b7356fa TRAP: 0700 Tainted: G E (4.15.0-rc2-next-20171211-autotest-autotest)
>>>> MSR: 800000010282b033 <SF,VEC,VSX,EE,FP,ME,IR,DR,RI,LE,TM[E]> CR: 22000022 XER: 00000009
>>>> CFAR: c000000000170594 SOFTE: 0
>>>> GPR00: c00000000051103c c0000000fc293ac0 c0000000010f1d00 0000000000000058
>>>> GPR04: c00000028fcccdd0 c00000028fce3798 80000000374060b8 ffffffffffffffff
>>>> GPR08: 0000000000000000 c000000000d435ec 000000028ef90000 0000000000002717
>>>> GPR12: 0000000000000000 c00000000e734980 c0000000001215d8 c0000002886996c0
>>>> GPR16: 0000000000000000 0000000000000020 c0000002813d83f8 0000000000000001
>>>> GPR20: 0000000020000000 0000000000002000 0000000000000002 c0000002813dc808
>>>> GPR24: 0000000000000003 0000000000000001 c00000027f5a5c20 c0000002813dced0
>>>> GPR28: c00000027f5a5d90 c00000027f5a5d90 c00000027f5a5c00 c0000002813dc7f8
>>>> NIP [c000000000511040] __list_add_valid+0x70/0xb0
>>>> LR [c00000000051103c] __list_add_valid+0x6c/0xb0
>>>> Call Trace:
>>>> [c0000000fc293ac0] [c00000000051103c] __list_add_valid+0x6c/0xb0 (unreliable)
>>>> [c0000000fc293b20] [d0000000051f1a08] qla24xx_async_gnl+0x108/0x420 [qla2xxx]
>>>> [c0000000fc293bc0] [d0000000051e762c] qla2x00_do_work+0x18c/0x8c0 [qla2xxx]
>>>> [c0000000fc293ce0] [d0000000051e8180] qla2x00_relogin+0x420/0xff0 [qla2xxx]
>>>> [c0000000fc293dc0] [c00000000012172c] kthread+0x15c/0x1a0
>>>> [c0000000fc293e30] [c00000000000b4e8] ret_from_kernel_thread+0x5c/0x74
>>>> Instruction dump:
>>>> 41de0018 38210060 38600001 e8010010 7c0803a6 4e800020 3c62ffae 7d445378
>>>> 38631748 7d254b78 4bc5f51d 60000000 <0fe00000> 3c62ffae 7cc43378 386316f8
>>>> ---[ end trace a41bc8bd434657f1 ]---
>>>>
>>>> Kernel panic - not syncing: Fatal exception
>>>> Dumping ftrace buffer:
>>>> (ftrace buffer empty)
>>>> Rebooting in 10 seconds..
>>>>
>>>> This trace back to the below code path:
>>>>
>>>> # gdb -batch vmlinux -ex 'list *(0xc000000000511040)'
>>>> 0xc000000000511040 is in __list_add_valid (lib/list_debug.c:29).
>>>> 24 "list_add corruption. next->prev should be prev (%p), but was %p. (next=%p).\n",
>>>> 25 prev, next->prev, next) ||
>>>> 26 CHECK_DATA_CORRUPTION(prev->next != next,
>>>> 27 "list_add corruption. prev->next should be next (%p), but was %p. (prev=%p).\n",
>>>> 28 next, prev->next, prev) ||
>>>> 29 CHECK_DATA_CORRUPTION(new == prev || new == next,
>>>> 30 "list_add double add: new=%p, prev=%p, next=%p.\n",
>>>> 31 new, prev, next))
>>>> 32 return false;
>>>> 33
>>>
>>> (+linux-scsi)
>>>
>>> Hello Abdul,
>>>
>>> Please report SCSI LLD issues on the linux-scsi mailing list.
>>>
>>> Bart.
>>
>> We have fixed this issue with following patch
>>
>> https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=4.16/scsi-queue&id=5d3300a9b8b122b4743aed5a178bf12c87e2b8c9
>>
>> Can you apply this on your setup and retry your test.
>
> I see the patch already applied to next-20171211 and the problem is also
> seen with the patch.
>
> I am attaching the kernel configuration file.
>
> Regard's
> Abdul
>
> <ZZ-VM-config.txt>
Looks like these 3 patches should help with the issue. Can you check if your Tree has these applied
https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=4.16/scsi-queue&id=6d67492764b39ad6efb6822816ad73dc141752f4
https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=4.16/scsi-queue&id=3dbec59bdf63f3c82323bd6ab8a4bd2946abaaec
https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=4.16/scsi-queue&id=3dbec59bdf63f3c82323bd6ab8a4bd2946abaaec
if not then please pull them on your tree and retest.
Thanks,
- Himanshu
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