Public bug reported:
Generated I/O errors every hour in syslog and caused kernel panic with
workloads running
---uname output---
Linux ubuntutest01 4.15.0-88-generic #88-Ubuntu SMP Tue Feb 11 20:11:02 UTC
2020 s390x s390x s390x GNU/Linux
---Patches Installed---
distro provided. up-to-date from Ubuntu18.04.
Machine Type = z15
---System Hang---
The hourly generated I/O errors didn't impact the system up and running. When
there are workloads on it, it will cause kernel panic and rebooted the server.
---Debugger---
A debugger is not configured
---Steps to Reproduce---
After migrated from 16.04 to 18.04, will see the i/o errors.
Stack trace output:
no
Oops output:
no
System Dump Info:
The system is not configured to capture a system dump.
Device driver error code:
[52297.898232] dasd.5c0c98: 0.0.0100: default ERP has run out of retries and
failed
[52297.898244] dasd(fba): I/O status report for device 0.0.0100:
dasd(fba): in req: 000000002e142bcd CS: 0x20 DS: 0x0C
dasd(fba): device 0.0.0100: Failing CCW: 00000000a84f6c9f
dasd(fba): SORRY - NO VALID SENSE AVAILABLE
[52297.898255] dasd(fba): Related CP in req: 000000002e142bcd
dasd(fba): CCW 00000000d15f44d3: 63400010 7FE2BBA0 DAT: 00000200
008150F2 00000000 00000017
dasd(fba): CCW 00000000b09ad76e: 43400008 7FE2BBB0 DAT: 05000006
00000000
dasd(fba): CCW 00000000c44dfb20: 41600C00 F3600000 DAT: 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000
dasd(fba): CCW 00000000a84f6c9f: 43400008 7FE2BBB8 DAT: 05000010
00000006
dasd(fba): CCW 0000000022dac88c: 41600000 00000000 DAT:
dasd(fba): CCW 0000000069686544: 43400008 7FE2BBC0 DAT: 05000002
00000016
dasd(fba): CCW 000000007bb6a17c: 41200400 F3600000 DAT: 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000
[52297.898278] print_req_error: I/O error, dev dasda, sector 8474866
*Additional Instructions for y...@cn.ibm.com:
-Attach sysctl -a output output to the bug.
[reply] [?]
Internal Only
Comment 1 QI YE 2020-03-12 02:29:20 CDT
The z/VM version 6.4
** Affects: ubuntu-z-systems
Importance: Undecided
Status: New
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: Skipper Bug Screeners (skipper-screen-team)
Status: New
** Tags: architecture-s39064 bugnameltc-184349 severity-high
targetmilestone-inin---
** Tags added: architecture-s39064 bugnameltc-184349 severity-high
targetmilestone-inin---
** Changed in: ubuntu
Assignee: (unassigned) => Skipper Bug Screeners (skipper-screen-team)
** Package changed: ubuntu => linux (Ubuntu)
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https://bugs.launchpad.net/bugs/1867118
Title:
dasd_fba io error and kernel panic
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