[Bug 256712] UFS: kernel panic: ffs_blkfree_cg: freeing free frag – in response to pkg-delete(8) soon after login

From: <bugzilla-noreply_at_freebsd.org>
Date: Sun, 20 Jun 2021 15:34:42 +0000
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=256712

--- Comment #10 from Graham Perrin <grahamperrin_at_gmail.com> ---
Thanks, 

(In reply to Gary Jennejohn from comment #9)

Oops! I'm suitably embarrassed (probably never needed kgdb before today). 

----

# date ; uptime
Sun Jun 20 16:08:08 BST 2021
4:08PM up 24 mins, 5 users, load averages: 0.33, 0.17, 0.10
# kgdb file /var/crash/vmcore.0
GNU gdb (GDB) 10.2 [GDB v10.2 for FreeBSD]
…
Reading symbols from file...
Reading symbols from /usr/lib/debug//usr/bin/file.debug...
/wrkdirs/usr/ports/devel/gdb/work-py38/gdb-10.2/gdb/thread.c:1309:
internal-error: void switch_to_thread(thread_info *): Assertion `thr != NULL'
failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n) y

This is a bug, please report it. For instructions, see:
<https://www.gnu.org/software/gdb/bugs/>.

/wrkdirs/usr/ports/devel/gdb/work-py38/gdb-10.2/gdb/thread.c:1309:
internal-error: void switch_to_thread(thread_info *): Assertion `thr != NULL'
failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Create a core file of GDB? (y or n) y
Abort trap (core dumped)
# pwd
/root
# ls -hl *.core
-rw------- 1 root wheel 354M Jun 20 16:09 kgdb102.core
# gdb file kgdb102.core
…

----

No symbols in the backtrace for kgdb102.core (and to keep things here
reasonably concise, I'm taking advice elsewhere).

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Received on Sun Jun 20 2021 - 15:34:42 UTC

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