From: Ritesh Raj Sarraf <rrs@debian.org>
To: Anton Ivanov <anton.ivanov@kot-begemot.co.uk>,
Christopher Obbard <chris.obbard@collabora.com>,
"linux-um@lists.infradead.org" <linux-um@lists.infradead.org>
Cc: 983379@bugs.debian.org
Subject: Re: linux uml segfault
Date: Tue, 02 Mar 2021 19:53:43 +0530 [thread overview]
Message-ID: <02e348bbb13f0fac92f2147309fb1c006b4583b2.camel@debian.org> (raw)
In-Reply-To: <6370b92a-84fa-aa21-4270-fcaf1bf42407@kot-begemot.co.uk>
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On Tue, 2021-03-02 at 11:34 +0000, Anton Ivanov wrote:
> If gdb gives you the exact lines, that may be helpful.
It doesn't. But it does show drawbacks in my packaging. The debug
symbols packaged are not read/honored by gdb at all.
```
Reading symbols from /usr/bin/linux.uml...
Reading symbols from /usr/lib/debug/.build-
id/6f/ea141539149074c72e80fb8004de124fda115b.debug...
(No debugging symbols found in /usr/lib/debug/.build-
id/6f/ea141539149074c72e80fb8004de124fda115b.debug)
warning: Can't open file /dev/shm/#20817 (deleted) during file-backed
mapping note processing
[New LWP 18788]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-
gnu/libthread_db.so.1".
Core was generated by `linux ubd0=qemu-linux-image.img'.
Program terminated with signal SIGABRT, Aborted.
#0 0x00007f51842c0087 in kill () at ../sysdeps/unix/syscall-
template.S:120
120 ../sysdeps/unix/syscall-template.S: No such file or directory.
(gdb) bt
#0 0x00007f51842c0087 in kill () at ../sysdeps/unix/syscall-
template.S:120
#1 0x000000006049dc20 in uml_abort ()
#2 0x000000006049de7a in os_dump_core ()
#3 0x0000000060486e47 in panic_exit ()
#4 0x00000000604c0a03 in notifier_call_chain ()
#5 0x00000000604c0a98 in atomic_notifier_call_chain ()
#6 0x0000000060a26b85 in panic ()
#7 0x00000000604869e1 in segv ()
#8 0x0000000060486ba9 in segv_handler ()
#9 0x000000006049ccc0 in sig_handler_common ()
#10 0x000000006049d1ec in sig_handler ()
#11 0x000000006049cdc6 in hard_handler ()
#12 <signal handler called>
#13 0x00000000604d45b4 in vprintk_store ()
#14 0x00000000604d4aa8 in vprintk_emit ()
#15 0x00000000604d4d86 in vprintk_deferred ()
#16 0x0000000060a27a02 in printk_deferred ()
#17 0x00000000609031b2 in get_random_u32 ()
#18 0x000000006088ff65 in bucket_table_alloc.isra ()
#19 0x0000000060890740 in rhashtable_init ()
#20 0x00000000607efaa2 in ipc_init_ids ()
#21 0x00000000600153c9 in sem_init ()
```
So the best I can extract for you is to compile the kernel with as much
information as possible.
Thanks,
Ritesh
--
Ritesh Raj Sarraf | http://people.debian.org/~rrs
Debian - The Universal Operating System
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next prev parent reply other threads:[~2021-03-02 14:24 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-23 8:06 linux uml segfault Ritesh Raj Sarraf
2021-02-23 10:50 ` Anton Ivanov
2021-02-23 12:12 ` Christopher Obbard
2021-02-23 12:24 ` Anton Ivanov
2021-02-23 17:19 ` Anton Ivanov
2021-02-23 17:26 ` Ritesh Raj Sarraf
2021-02-23 18:02 ` Anton Ivanov
2021-02-24 11:44 ` Anton Ivanov
2021-03-02 9:09 ` Ritesh Raj Sarraf
2021-03-02 11:34 ` Anton Ivanov
2021-03-02 14:23 ` Ritesh Raj Sarraf [this message]
2021-03-02 17:05 ` Anton Ivanov
2021-03-02 17:27 ` Ritesh Raj Sarraf
2021-03-03 9:30 ` Anton Ivanov
2021-03-03 10:45 ` Bug#983379: " Ritesh Raj Sarraf
2021-03-03 10:53 ` Anton Ivanov
2021-03-03 22:40 ` Johannes Berg
2021-03-04 5:38 ` Hajime Tazaki
2021-03-04 7:45 ` Anton Ivanov
2021-03-04 7:47 ` Johannes Berg
2021-03-04 8:05 ` Benjamin Berg
2021-03-04 18:41 ` Anton Ivanov
2021-03-05 9:59 ` Anton Ivanov
2021-03-05 10:07 ` Johannes Berg
2021-03-05 17:39 ` Anton Ivanov
2021-03-05 18:32 ` Johannes Berg
2021-03-05 19:03 ` Anton Ivanov
2021-03-05 20:06 ` Johannes Berg
2021-03-05 20:07 ` Johannes Berg
2021-03-05 20:22 ` Johannes Berg
2021-03-05 22:25 ` Hajime Tazaki
2021-03-07 12:22 ` Hajime Tazaki
2021-03-07 12:56 ` Johannes Berg
2021-03-04 7:28 ` Anton Ivanov
2021-03-04 7:43 ` Johannes Berg
2021-03-05 19:54 ` Johannes Berg
2021-03-05 20:43 ` [PATCH] um: mark all kernel symbols as local Johannes Berg
2021-03-05 20:54 ` Anton Ivanov
2021-03-06 10:51 ` Ritesh Raj Sarraf
2021-03-08 10:29 ` Bug#983379: " Ritesh Raj Sarraf
2021-03-08 10:33 ` Johannes Berg
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