[Ubuntu-x-swat] [Bug 1033242] Re: X server crashes
[Expired for xorg-server (Ubuntu) because there has been no activity for 60 days.] ** Changed in: xorg-server (Ubuntu) Status: Incomplete = Expired -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1033242 Title: X server crashes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1033242/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1033242] Re: X server crashes
Erno Kuusela, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ . If it remains an issue, could you please run the following command in the development release from a Terminal (Applications-Accessories-Terminal), as it will automatically gather and attach updated debug information to this report: apport-collect -p xorg-server REPLACE-WITH-BUG-NUMBER Please note, given that the information from the prior release is already available, doing this on a release prior to the development one would not be helpful. Thank you for your understanding. Helpful bug reporting tips: https://wiki.ubuntu.com/ReportingBugs ** Changed in: xorg-server (Ubuntu) Importance: Undecided = Low ** Changed in: xorg-server (Ubuntu) Status: Confirmed = Incomplete -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1033242 Title: X server crashes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1033242/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1033242] Re: X server crashes
I'm seeing the same crash in xorg, in AttendClient with a radeon onboard graphics on Fedora 17, xorg 1.12.4-6.fc17 It's extremely frequent. If I leave the desk for a little, it's more likely than not that it's crashed while I was away. [ 2701.680] (II) RADEON(0): RADEONSaveScreen(2) [ 2701.680] (II) RADEON(0): RADEONSaveScreen(0) [ 3196.442] (WW) RADEON(0): divisor 0 get vblank counter failed: Device or resource busy [ 3196.444] (WW) RADEON(0): divisor 0 get vblank counter failed: Device or resource busy [ 3196.447] [ 3196.447] Backtrace: [ 3196.447] 0: /usr/bin/Xorg (xorg_backtrace+0x36) [0x465326] [ 3196.448] 1: /usr/bin/Xorg (0x40+0x6a339) [0x46a339] [ 3196.448] 2: /lib64/libpthread.so.0 (0x3e1320+0xefe0) [0x3e1320efe0] [ 3196.448] 3: /usr/bin/Xorg (AttendClient+0x17) [0x467487] [ 3196.448] 4: /usr/lib64/xorg/modules/extensions/libdri2.so (DRI2SwapComplete+0x135) [0x7fd77f6d6ab5] [ 3196.448] 5: /usr/lib64/xorg/modules/drivers/radeon_drv.so (0x7fd77f1c1000+0xd29b9) [0x7fd77f2939b9] [ 3196.448] 6: /usr/lib64/xorg/modules/extensions/libdri2.so (DRI2SwapBuffers+0x107) [0x7fd77f6d6cc7] [ 3196.448] 7: /usr/lib64/xorg/modules/extensions/libdri2.so (0x7fd77f6d4000+0x3fd2) [0x7fd77f6d7fd2] [ 3196.448] 8: /usr/bin/Xorg (0x40+0x3446a) [0x43446a] [ 3196.448] 9: /usr/bin/Xorg (0x40+0x23475) [0x423475] [ 3196.448] 10: /lib64/libc.so.6 (__libc_start_main+0xf5) [0x3e12e21735] [ 3196.448] 11: /usr/bin/Xorg (0x40+0x2374d) [0x42374d] [ 3196.448] [ 3196.448] Segmentation fault at address (nil) [ 3196.448] Fatal server error: [ 3196.448] Caught signal 11 (Segmentation fault). Server aborting [ 3196.448] [ 3196.448] -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1033242 Title: X server crashes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1033242/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1033242] Re: X server crashes
Ok I have verified that my local fix works, this ErrorF triggers in the
beginning of AttendClient:
void
AttendClient (ClientPtr client)
{
OsCommPtr oc = (OsCommPtr)client-osPrivate;
int connection;
if (!oc) {
ErrorF(osPrivate NULL in AttendClient!);
return;
}
I had put the xserver-xorg-core package on hold while testing the local
modifications so it's theoretically possible
this was already fixed meanwhile in updates made to precise.
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https://bugs.launchpad.net/bugs/1033242
Title:
X server crashes
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[Ubuntu-x-swat] [Bug 1033242] Re: X server crashes
This started happening frequently enough that I broke out the xorg sources and figured out how to associate the crash address to a line number. (*) It's crashing at the line where it's dereferencing client-osPrivate, I'd guess there's a missing null check of client-osPrivate at the start of AttendClient, since many other functions in os/connection.c do a null check on that one but AttendClient doesn't. Of course it still might be a can't-happen situation for some implicit reason and something bigger is going wrong... (*) install dbg version of xorg core package, get source and start build far enough to apply patches, then use print function-name in gdb to get address of function, and apply the offset from xorg log like list *(0x1234+0x32) -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1033242 Title: X server crashes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1033242/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1033242] Re: X server crashes
I would try a fix but I can't seem to work the build tools these days (dpkg-source: unrepresentable changes to source, dpkg-source: info: 'dpkg-source --commit' is not supported by the source format '1.0') -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1033242 Title: X server crashes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1033242/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1033242] Re: X server crashes
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: xorg-server (Ubuntu) Status: New = Confirmed -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1033242 Title: X server crashes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1033242/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1033242] Re: X server crashes
** Package changed: xorg (Ubuntu) = xorg-server (Ubuntu) -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1033242 Title: X server crashes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1033242/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1033242] Re: X server crashes
Another possible sighting: http://forum.ubuntu-fr.org/viewtopic.php?id=686861 (only redo_fr looks in his blog which has a similar backtrace, but other radeon users (plikplok and Kaffee) report same symptoms) -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1033242 Title: X server crashes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1033242/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1033242] Re: X server crashes
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1033242 Title: X server crashes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1033242/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
