@finnegan thanks for the feedback - closing this ticket according to
comment #24.
** Changed in: linux (Ubuntu)
Status: Incomplete => Invalid
** Changed in: ubuntu-z-systems
Status: Incomplete => Invalid
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https://bugs.launchpad.net/bugs/1804149
Title:
Kernel panic,Oops: 0004 ilc:3 [#1] SMP, iscsi_q_20 iscsi_xmitworker
[libiscsi]
Status in Ubuntu on IBM z Systems:
Invalid
Status in linux package in Ubuntu:
Invalid
Bug description:
== Comment: #0 - Michael Finnegan <[email protected]> - 2018-11-19 14:14:40
==
---Problem Description---
Kernel panic,Oops: 0004 ilc:3 [#1] SMP, iscsi_q_20 iscsi_xmitworker
[libiscsi]
---uname output---
Linux ilabg3 4.15.0-36-generic #39-Ubuntu SMP Mon Sep 24 16:13:24 UTC 2018
s390x s390x s390x GNU/Linux
Machine Type = IBM 3906 M05 7G4 (z/VM 7.1.0)
---Debugger---
A debugger is not configured
Contact Information = Michael Finnegan/[email protected]
Stack trace output:
dmesg.201811161956
[1363037.322472] Unable to handle kernel pointer dereference in virtual
kernel address space
[1363037.322481] Failing address: 0000000000000000 TEID: 0000000000000483
[1363037.322483] Fault in home space mode while using kernel ASCE.
[1363037.322486] AS:0000000000ea0007 R3:00000000f37d0007 S:00000000f37ff000
P:000000000000013d
[1363037.322524] Oops: 0004 ilc:3 [#1] SMP
[1363037.322529] Modules linked in: iptable_filter binfmt_misc
rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache qeth_l3 qeth_l2
s390_trng ghash_s390 prng aes_s390 des_s390 des_generic sha512_s390 sha256_s390
sha1_s390 sha_common qeth vmur ccwgroup vfio_ccw vfio_mdev mdev
vfio_iommu_type1 vfio sch_fq_codel ib_iser rdma_cm iw_cm ib_cm ib_core sunrpc
iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables x_tables
dm_round_robin dm_service_time crc32_vx_s390 dasd_eckd_mod zfcp qdio
scsi_transport_fc dasd_fba_mod dasd_mod scsi_dh_emc scsi_dh_rdac scsi_dh_alua
dm_multipath
[1363037.322567] CPU: 3 PID: 37970 Comm: kworker/u128:19 Not tainted
4.15.0-36-generic #39-Ubuntu
[1363037.322573] Hardware name: IBM 3906 M05 7G4 (z/VM 7.1.0)
[1363037.322581] Workqueue: iscsi_q_20 iscsi_xmitworker [libiscsi]
[1363037.322583] Krnl PSW : 00000000c8051cf6 00000000e49a28f4
(__iscsi_get_task+0x6/0x18 [libiscsi])
[1363037.322587] R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:2
PM:0 RI:0 EA:3
[1363037.322589] Krnl GPRS: 0000000000000000 0000000002923ce0
0000000000000000 0000000000000400
[1363037.322591] 000003ff80277640 0000000000000008
00000000788efc00 000003ff802777cc
[1363037.322592] 000003ff8027769c 0000000000000000
0000000000000000 0000000078ce8310
[1363037.322594] 00000000f3689800 0000000078ce83a2
000003ff80272e8e 0000000002923c90
[1363037.322601] Krnl Code: 000003ff80272624: c0f4fffffcf6 brcl
15,3ff80272010
000003ff8027262a: c0f40000377b brcl
15,3ff80279520
#000003ff80272630: c00400000000 brcl
0,3ff80272630
>000003ff80272636: eb012078006a asi
120(%r2),1
000003ff8027263c: c0f400003772 brcl
15,3ff80279520
000003ff80272642: 0707 bcr 0,%r7
000003ff80272644: 0707 bcr 0,%r7
000003ff80272646: 0707 bcr 0,%r7
[1363037.322618] Call Trace:
[1363037.322621] ([<000003ff80272ec6>] iscsi_xmit_task+0x86/0x138 [libiscsi])
[1363037.322625] [<000003ff8027769c>] iscsi_data_xmit+0x44c/0x548 [libiscsi]
[1363037.322636] [<000003ff802777cc>] iscsi_xmitworker+0x34/0x58 [libiscsi]
[1363037.322642] [<00000000001918f2>] process_one_work+0x262/0x4d8
[1363037.322644] [<0000000000191bc0>] worker_thread+0x58/0x4e8
[1363037.322648] [<0000000000198d24>] kthread+0x14c/0x168
[1363037.322652] [<00000000008e3eb2>] kernel_thread_starter+0xa/0x10
[1363037.322654] [<00000000008e3ea8>] kernel_thread_starter+0x0/0x10
[1363037.322655] Last Breaking-Event-Address:
[1363037.322657] [<000003ff80272e88>] iscsi_xmit_task+0x48/0x138 [libiscsi]
[1363037.322658]
[1363037.322660] Kernel panic - not syncing: Fatal exception in interrupt
Oops output:
Oops: 0004 ilc:3 [#1] SMP
*Additional Instructions for Michael Finnegan/[email protected]:
-Post a private note with access information to the machine that the bug is
occuring on.
-Attach sysctl -a output output to the bug.
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