Another crash; Assertion failed in ext2fs.static

[Thomas Schwinge]

Hello!

Last night, while I was compiling GNU Mach, I got the following assertion
failure:
#v+
ext2fs.static: thread_cancel.c:55: hurd_thread_cancel: Assertion `! 
__spin_lock_locked (&ss->critical_section_lock)' failed.
#v-

GNU Mach did not enter the kernel debugger, but was just hanging instead.

I didn't do anything special, so I don't know how I could reproduce it.
Sadly this concides with other reports of the same assertion failing (see
the attached messages,
<URL:http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=46859> and
<URL:http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=195360>).


Regards,
 Thomas
> --- Begin Message ---
>
>
>
> Subject: 
>
> hurd_thread_cancel trips assertion
>
>
>
>
> Date: 
>
> Thu, 7 Oct 1999 17:46:53 +0200 (CEST)
>
>
>
>
> Package: libc0.2
> Version: N/A
> Severity: critical
>
> Note: I'm sending this report such that this bug will enter the Debian
> BTS.  The bug has been discussed before on bug-hurd and Roland will
> (eventually) look into it.  I don't think any immedeate action needs
> to be taken by any other party.  A summary of the discussion on
> bug-hurd follows.
>
>
> I caught the term server on /dev/console failing the following
> assertion in hurd_thread_cancel() (hurd/thread-cancel.c:46):
>
>   assert (! __spin_lock_locked (&ss->critical_section_lock));
>
> Since there is no guarantee that the target thread is not in a
> critical section, there is obviously something wrong here.
>
> Thomas suggested that there is no need to take the critical section
> lock.  I believe that taking the critical section lock is necessary to
> prevent the target thread from entering a signal handler.  Roland will
> look into the problem.
>
>
> Mark
>
>
> --- End Message ---

--- Begin Message --- Subject: Re: hurd_thread_cancel trips assertion Date: 24 Feb 2001 11:15:20 +0100

Mark Kettenis:
> I caught the term server on /dev/console failing the following
> assertion in hurd_thread_cancel() (hurd/thread-cancel.c:46):

>   assert (! __spin_lock_locked (&ss->critical_section_lock));

Anybody know what became of this bug
<URL:http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=46859&repeatmerged=yes>?

Is it fixed/still reproducible/unknown?

-- 
Robbe

signature.ng
Description: PGP signature

--- End Message ---

> --- Begin Message ---
>
>
>
> Subject: 
>
> Assertion failure in ext2fs.static
>
>
>
>
> Date: 
>
> Thu, 12 Jul 2001 13:23:37 -0700
>
>
>
>
> User-agent: 
>
> Mutt/1.2.5i
>
>
>
>
> I got a different Hurd crash than normal.  I don't have any more
> information than this, sorry.  This occured when I was doing an
> autobuilder run:
>
> extfs.static: thread-cancel.c:55: hurd_thread_cancel: Assertion `! 
> __spin_lock_locked (&ss->critical_section_lock)' failed.
>
> The crash is unusual in that the computer didn't reboot like normal,
> it was still sitting here when I got up.
>
> Tks,
> Jeff Bailey
>
>
>
> --- End Message ---
> --- Begin Message ---
>
>
>
> Subject: 
>
> Hurd bug
>
>
>
>
> Date: 
>
> Mon, 21 Oct 2002 19:11:56 -0700
>
>
>
>
> User-agent: 
>
> Mutt/1.3.28i
>
>
>
>
> Mark, (Heya, long time)
>
> I'm just cleaning out the glibc BTS.  I pinged Roland about this bug
> earlier today, and he indicated that he had no intention of touching
> this code until he did a massive overhaul on it.
>
> At a minimum, I'd like to downgrade this bug to 'normal'.  Ideally,
> I'd like to close it, since it 1) Will never be fixed in a way that's
> meaningful to this bug and 2) it's not in a place that Roland ever
> looks anyway.
>
> It might be best to submit this in upstreams gnats database to meet
> your original need.
>
> Lemme know.
>
>
> -- 
> learning from failures is nice in theory...
> but in practice, it sucks :)
>  - Wolfgang Jaehrling
>
>
>
> --- End Message ---
> --- Begin Message ---
>
>
>
> Subject: 
>
> Bug#195360: ext2fs.static crash
>
>
>
>
> Date: 
>
> Fri, 30 May 2003 09:53:57 +0300
>
>
>
>
> User-agent: 
>
> Mozilla/5.0 (X11; U; Linux i686; en-US;	rv:1.3.1) Gecko/20030527 Debian/1.3.1-2
>
>
>
>
> Package: hurd
> Version: 20020804-1
> Tags: unreproducible
>
> After some builds of oskit and gnumach I got the following assertion 
> failure:
>
> ext2fs.static: thread-cancel.c:55: Assertion `! __spin_lock_locked 
> (&ss->critical_section_lock)' failed.
>
> libc0.3 is 2.3.1-5.
>
> P.S. The most interesting part is that while compiling oskit, I browsed 
> a hurd mailing list and the assertion failed just after I hit Enter to 
> view #116317 ;-)
>
> Regards
> --
> Ognyan Kulev <ogi@fmi.uni-sofia.bg>, "\"Programmer\""
> 7D9F 66E6 68B7 A62B 0FCF  EB04 80BF 3A8C A252 9782
>
>
>
>
>
> --- End Message ---