Nouveau - Dec 2010 - [Bug 32453] New: SIGABRT caused by malloc around RegionCreate. Can only reproduce with nouveau not vesa.

https://bugs.freedesktop.org/show_bug.cgi?id=32453

           Summary: SIGABRT caused by malloc around RegionCreate. Can only
                    reproduce with nouveau not vesa.
           Product: xorg
           Version: git
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: brandon at ifup.org
         QAContact: xorg-team at lists.x.org


Created an attachment (id=41187)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=41187)
Xorg.1.log from the machine

Using git nouveau kernel, libdrm, and nouveau xorg driver as of today on top of
openSUSE Factory Xorg. 

Backtrace from gdb:
#0  0x00007ff87fbb6ad5 in raise (sig=<value optimized out>)
    at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#1  0x00007ff87fbb7fd6 in abort () at abort.c:92
#2  0x00007ff87fbf75da in __malloc_assert (assertion=<value optimized
out>,
    file=<value optimized out>, line=<value optimized out>, 
    function=<value optimized out>) at malloc.c:352
#3  0x00007ff87fbf97a6 in sYSMALLOc (av=0x7ff87feece80, bytes=15335424)
    at malloc.c:3094
#4  _int_malloc (av=0x7ff87feece80, bytes=15335424) at malloc.c:4747
#5  0x00007ff87fbfbc69 in __libc_malloc (bytes=15335424) at malloc.c:3661
#6  0x00007ff87d146ef4 in exaPrepareAccessReg_mixed (pPixmap=0x1aef1a0, 
    index=1, pReg=0x0) at exa_migration_mixed.c:203
#7  0x00007ff87d143602 in exaChangeWindowAttributes (pWin=0x1ad5dc0, mask=1)
    at exa.c:652
#8  0x00000000005602d7 in compChangeWindowAttributes (pWin=0x1ad5dc0, mask=1)
    at compinit.c:114
#9  0x0000000000436c4d in ChangeWindowAttributes (pWin=<value optimized
out>,
    vmask=1, vlist=<value optimized out>, client=0xb870d0) at
window.c:1459
#10 0x000000000043cb78 in ProcChangeWindowAttributes (client=0xb870d0)
    at dispatch.c:693
#11 0x00000000004428f1 in Dispatch () at dispatch.c:432
#12 0x0000000000425b5e in main (argc=9, argv=<value optimized out>, 
    envp=<value optimized out>) at main.c:291

If I use the vesa driver the system comes up fine. Reproducing by launching
emacs inside of a gnome session.

If I use MALLOC_CHECK_=3 /etc/init.d/xdm restart I can sometimes get Xorg w/
nouveau to work for a few days before crashing. But, that isn't a real
solution.

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https://bugs.freedesktop.org/show_bug.cgi?id=32453

--- Comment #1 from Brandon Philips <brandon at ifup.org> 2010-12-16
13:27:48 PST ---
Created an attachment (id=41188)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=41188)
dmesg

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https://bugs.freedesktop.org/show_bug.cgi?id=32453

--- Comment #2 from Brandon Philips <brandon at ifup.org> 2010-12-16
13:28:14 PST ---
Created an attachment (id=41189)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=41189)
gdb backtrace

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Michel D?nzer <michel at daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #41187|text/x-log                  |text/plain
          mime type|                            |

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--- Comment #3 from Michel D?nzer <michel at daenzer.net> 2011-01-04
02:05:13 PST ---
Is there more information about the malloc failure in the X server stderr
output? Should be captured in the gdm/kdm log file.

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--- Comment #4 from Michel D?nzer <michel at daenzer.net> 2011-01-06
00:57:24 PST ---
Does the patch from bug 32803 happen to help for this as well?

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--- Comment #5 from Brandon Philips <brandon at ifup.org> 2011-01-13
11:27:41 PST ---
Created an attachment (id=41982)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=41982)
/var/log/gdm/:0.log.2

Here is the gdm capture from Xorg. NOTE: I had to add export
LIBC_FATAL_STDERR_=1 to get this.

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--- Comment #6 from Brandon Philips <brandon at ifup.org> 2011-01-13
11:48:45 PST ---
(In reply to comment #4)
> Does the patch from bug 32803 happen to help for this as well?
Yes, I have the patch from 32803 and I am still hitting the bug. I am running
the latest xorg-x11-server from openSUSE: 

https://build.opensuse.org/package/show?package=xorg-x11-server&project=X11%3AXOrg

Thanks, Brandon

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--- Comment #7 from Brandon Philips <brandon at ifup.org> 2011-01-13
11:52:41 PST ---
Created an attachment (id=41985)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=41985)
Latest backtrace

With the latest Xorg available to me the backtrace has changed abit and is
around malloc in exaPrepareAccessReg_mixed().

Starting with MALLOC_CHECK=3 still works around the issue.

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Brandon Philips <brandon at ifup.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|SIGABRT caused by malloc    |SIGABRT caused by malloc
                   |around RegionCreate. Can    |around
                   |only reproduce with nouveau |exaPrepareAccessReg_mixed
                   |not vesa.                   |

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--- Comment #8 from Brandon Philips <brandon at ifup.org> 2011-01-13
11:59:58 PST ---
Created an attachment (id=41986)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=41986)
gdm capture of latest Xorg crash

Here is what gdm captured from the latest Xorg when it crashes.

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--- Comment #9 from Michel D?nzer <michel at daenzer.net> 2011-01-14
01:01:31 PST ---
Well, the backtraces from the Xorg and gdm log files and from gdb all look
different. :} So as in bug 32453, the real problem could be memory corruption
somewhere else which is only caught in these places.

Apart from running the X server in valgrind, getting a gdb backtrace for the
free() failure in the gdm log file might be useful.

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--- Comment #10 from Michel D?nzer <michel at daenzer.net> 2011-08-10
09:07:24 PDT ---
Would
http://cgit.freedesktop.org/xorg/xserver/patch/?id=99eeb211c73d28a60f9024f42cf9f9e45b8b0c3d
happen to help?

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Ilia Mirkin <imirkin at alum.mit.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #11 from Ilia Mirkin <imirkin at alum.mit.edu> ---
It appears that this bug report has laid dormant for quite a while. Sorry we
haven't gotten to it. Since we fix bugs all the time, chances are pretty
good
that your issue has been fixed with the latest software. Please give it a shot.
(Linux kernel 3.10.7, xf86-video-nouveau 1.0.9, mesa 9.1.6, or their git
versions.) If upgrading to the latest isn't an option for you, your
distro's
bugzilla is probably the right destination for your bug report.

In an effort to clean up our bug list, we're pre-emptively closing all bugs
that haven't seen updates since 2011. If the original issue remains, please
make sure to provide fresh info, see http://nouveau.freedesktop.org/wiki/Bugs/
for what we need to see, and re-open this one.

Thanks,

The Nouveau Team

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