Kernel panic,iSCSI,Unable to handle kernel pointer dereference in virtual kernel address space
Bug #1782085 reported by
bugproxy
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Ubuntu on IBM z Systems |
Invalid
|
High
|
Canonical Kernel Team | ||
linux (Ubuntu) |
Invalid
|
High
|
Skipper Bug Screeners |
Bug Description
Description will follow
tags: | added: architecture-s39064 bugnameltc-169770 severity-high targetmilestone-inin1804 |
Changed in ubuntu: | |
assignee: | nobody → Skipper Bug Screeners (skipper-screen-team) |
affects: | ubuntu → linux (Ubuntu) |
Changed in ubuntu-z-systems: | |
status: | New → Triaged |
importance: | Undecided → High |
assignee: | nobody → Canonical Kernel Team (canonical-kernel-team) |
tags: | added: kernel-da-key |
Changed in linux (Ubuntu): | |
status: | New → Triaged |
importance: | Undecided → High |
Changed in linux (Ubuntu): | |
status: | Triaged → Invalid |
Changed in ubuntu-z-systems: | |
status: | Triaged → Invalid |
tags: | added: cscc |
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------- Comment From <email address hidden> 2018-07-17 03:53 EDT-------
---Problem Description---
Kernel panic,Unable to handle kernel pointer dereference in virtual kernel address space
Contact Information = Michael <email address hidden>
---uname output---
Linux ilzlnx4 4.15.0-15-generic #16-Ubuntu SMP Wed Apr 4 13:57:26 UTC 2018 s390x s390x s390x GNU/Linux
Machine Type = s390x
---Debugger---
A debugger is not configured
---Steps to Reproduce---
1 - IO running to iscsi luns
2 - Error inject running was storage side switch port bounce (off/on)
Stack trace output: iscsi ip_tables x_tables crc32_vx_s390 dasd_eckd_mod dasd_mod" get_task+ 0" 1ec6>] iscsi_xmit_ task+0x86/ 0x138 [libiscsi])"
"ilzlnx4 login:"
"[551709.743278] Unable to handle kernel pointer dereference in virtual kernel ad"
"dress space"
"[551709.743952] Failing address: 0000000000000000 TEID: 0000000000000483"
"[551709.743955] Fault in home space mode while using kernel ASCE."
"[551709.743959] AS:0000000000eb0007 R3:00000001f3bd0007 S:00000001f3bd4000 P:000"
000000000013d
"[551709.743990] Oops: 0004 ilc:3 [#1] SMP"
"[551709.743994] Modules linked in: iptable_filter binfmt_misc rpcsec_gss_krb5 au"
"th_rpcgss nfsv4 nfs lockd grace fscache dm_round_robin dm_service_time dm_multip"
"ath scsi_dh_rdac scsi_dh_emc scsi_dh_alua qeth_l2 s390_trng ghash_s390 prng aes_"
"s390 des_s390 des_generic sha512_s390 sha256_s390 sha1_s390 sha_common chsc_sch"
"eadm_sch qeth qdio ccwgroup vfio_ccw vfio_mdev mdev vfio_iommu_type1 vfio sch_fq"
"_codel ib_iser rdma_cm iw_cm sunrpc ib_cm ib_core iscsi_tcp libiscsi_tcp libiscs"
"i scsi_transport_
"[551709.744079] CPU: 2 PID: 39417 Comm: kworker/u512:1 Not tainted 4.15.0-15-gen"
"eric #16-Ubuntu"
"[551709.744083] Hardware name: IBM 3906 M05 7G4 (LPAR)"
"[551709.744099] Workqueue: iscsi_q_3 iscsi_xmitworker [libiscsi]"
"[551709.744104] Krnl PSW : 0000000006270506 00000000152bbcbd (__iscsi_
"x6/0x18 [libiscsi])"
"[551709.744148] 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"
"[551709.744154] Krnl GPRS: 0000000000000008 00000001e0e3fce0 0000000000000000 00"
00000080000400
"[551709.744339] 000003ff80126640 0000000000000000 00000001e4f0e400 00"
0003ff801267cc
"[551709.744342] 000003ff8012669c 0000000000000000 0000000000000000 00"
000001e161ab10
"[551709.744937] 00000001f3a93000 00000001e161aba2 000003ff80121e8e 00"
000001e0e3fc90
"[551709.745123] Krnl Code: 000003ff80121624: c0f4fffffcf6 brcl 15,3ff80"
121010
"[551709.745123] 000003ff8012162a: c0f40000377b brcl 15,3ff80"
128520
"[551709.745123] #000003ff80121630: c00400000000 brcl 0,3ff801"
21630
"[551709.745123] >000003ff80121636: eb012078006a asi 120(%r2)"
",1"
"[551709.745123] 000003ff8012163c: c0f400003772 brcl 15,3ff80"
128520
"[551709.745123] 000003ff80121642: 0707 bcr 0,%r7"
"[551709.745123] 000003ff80121644: 0707 bcr 0,%r7"
"[551709.745123] 000003ff80121646: 0707 bcr 0,%r7"
"[551709.745246] Call Trace:"
"[551709.745441] ([<000003ff8012
"[551709.745450] [<000...