Bug 259916 - kernel panic, possibly related to ciss(4)
Summary: kernel panic, possibly related to ciss(4)
Status: New
Alias: None
Product: Base System
Classification: Unclassified
Component: kern (show other bugs)
Version: 13.0-RELEASE
Hardware: amd64 Any
: --- Affects Only Me
Assignee: freebsd-bugs (Nobody)
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2021-11-18 13:21 UTC by Robert Clausecker
Modified: 2021-11-18 13:21 UTC (History)
0 users

See Also:

Attachments
crash information (79.29 KB, application/x-xz)
2021-11-18 13:21 UTC, Robert Clausecker 		no flags Details
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Description Robert Clausecker freebsd_committer freebsd_triage 2021-11-18 13:21:26 UTC 
Created attachment 229574 [details]
crash information

After trying to debug a wonky tape drive that would randomly disconnect itself for some reason,
my FreeBSD 13.0-RELEASE-p4 server crashed with a kernel panic.  The tape drive is attached to
a SAS controller supported by the ciss(4) driver.  The last commands I executed before the crash
were:

    camcontrol rescan all # necessary to make the tape drive come back online
    mt rewind && mt offline

See attached files for some information about the crash.  I do have a core dump and can run
further analysis on it if requested.