> On Jan 10, 2018, at 9:38 PM, Abdul Haleem <abdha...@linux.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.vanass...@wdc.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
