[Bug 311544] Re: segfault during X startup with savage driver
*** This bug is a duplicate of bug 319210 *** https://bugs.launchpad.net/bugs/319210 ** Changed in: xorg-server Status: Confirmed => Fix Released -- segfault during X startup with savage driver https://bugs.launchpad.net/bugs/311544 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 311544] Re: segfault during X startup with savage driver
*** This bug is a duplicate of bug 319210 *** https://bugs.launchpad.net/bugs/319210 There are too many open bugs for this problem. Consolidating in bug #319210. ** This bug has been marked a duplicate of bug 319210 segfault during X startup with randr < 1.2 drivers -- segfault during X startup with savage driver https://bugs.launchpad.net/bugs/311544 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 311544] Re: segfault during X startup with savage driver
After following the xorg bug development and seeing Alex's alternative (and better) patch I adapted his patch (to xorg-server) to the current version used in Jaunty. The patch is attached to LP: #319210 as http://launchpadlibrarian.net/21471674/160_xserver-xf86Crtc-check- private-index.patch Applying the latter patch negates the need for patching the savage driver. -- segfault during X startup with savage driver https://bugs.launchpad.net/bugs/311544 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 311544] Re: segfault during X startup with savage driver
** Changed in: xorg-server Status: Unknown => Confirmed -- segfault during X startup with savage driver https://bugs.launchpad.net/bugs/311544 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 311544] Re: segfault during X startup with savage driver
Sent it in git format (after fighting git-send-email for a bit), http://lists.freedesktop.org/archives/xorg/2008-December/041970.html -- segfault during X startup with savage driver https://bugs.launchpad.net/bugs/311544 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 311544] Re: segfault during X startup with savage driver
excellent, thanks. Sending it on the x...@l.fd.o list wouldn't hurt either, I guess you'll get a quicker reply that way :) I could apply it upstream once it's accepted. -- segfault during X startup with savage driver https://bugs.launchpad.net/bugs/311544 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 311544] Re: segfault during X startup with savage driver
** Changed in: xserver-xorg-video-savage (Ubuntu) Status: New => Confirmed ** Also affects: xorg-server via https://bugs.freedesktop.org/show_bug.cgi?id=19337 Importance: Unknown Status: Unknown -- segfault during X startup with savage driver https://bugs.launchpad.net/bugs/311544 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 311544] Re: segfault during X startup with savage driver
Sent upstream, see http://bugs.freedesktop.org/show_bug.cgi?id=19337 -- segfault during X startup with savage driver https://bugs.launchpad.net/bugs/311544 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 311544] Re: segfault during X startup with savage driver
Removed unused variable ** Attachment added: "Call xf86CrtcConfigInit() from within SavagePreInit()" http://launchpadlibrarian.net/20810695/04_allocate_xf86crtcconfig.diff -- segfault during X startup with savage driver https://bugs.launchpad.net/bugs/311544 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 311544] Re: segfault during X startup with savage driver
you should send this upstream for a review, to bugs.freedesktop.org and/or x...@lists.fd.o -- segfault during X startup with savage driver https://bugs.launchpad.net/bugs/311544 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 311544] Re: segfault during X startup with savage driver
Patching the savage driver to call xf86CrtcConfigInit makes this segfault disappear; a draft patch is attached. Binary (i386) package is available on request - I´d rather not attach it here nor encourage others to download packages from untrusted sources... ** Attachment added: "Call xf86CrtcConfigInit() from within SavagePreInit()" http://launchpadlibrarian.net/20804707/04_allocate_xf86crtcconfig.diff -- segfault during X startup with savage driver https://bugs.launchpad.net/bugs/311544 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 311544] Re: segfault during X startup with savage driver
OK, recompiled without optimizations but it still crashes. This time config is initialized incorrectly: (gdb) p config $9 = (xf86CrtcConfigPtr) 0x11 (gdb) p *config Cannot access memory at address 0x11 config is derived from ((xf86CrtcConfigPtr) ((p)->privates[xf86CrtcConfigPrivateIndex].ptr)) The value of xf86CrtcConfigPrivateIndex is... -1: (gdb) p xf86CrtcConfigPrivateIndex $27 = -1 This value gets initialized to -1 in xf86Crtc.c:57 and gets updated in xf86Crtc.c:xf86CrtcConfigInit(). This function does not seem to be called before the crash occurs as it crashes before a breakpoint set on this function gets triggered. This leaves xf86CrtcConfigPrivateIndex set to -1 and with that config is undefined... -- segfault during X startup with savage driver https://bugs.launchpad.net/bugs/311544 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 311544] Re: segfault during X startup with savage driver
Running Xorg under gdb gives the following: This is a pre-release version of the X server from The X.Org Foundation. It is not supported in any way. Bugs may be filed in the bugzilla at http://bugs.freedesktop.org/. Select the "xorg" product for bugs you find in this release. Before reporting bugs in pre-release versions please check the latest version in the X.Org Foundation git repository. See http://wiki.x.org/wiki/GitPage for git access instructions. X.Org X Server 1.5.99.3 Release Date: (unreleased) X Protocol Version 11, Revision 0 Build Operating System: Linux 2.6.24-19-server i686 Ubuntu Current Operating System: Linux ostrogoth 2.6.28-t23-200812261629 #26 PREEMPT Fri Dec 26 16:46:55 CET 2008 i686 Build Date: 17 December 2008 03:10:17AM xorg-server 2:1.5.99.3-0ubuntu3 (bui...@rothera.buildd) Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. (==) Log file: "/var/log/Xorg.0.log", Time: Sun Dec 28 19:42:04 2008 (==) Using config file: "/etc/X11/xorg.conf" [New Thread 0xb7a406c0 (LWP 7886)] [tcsetpgrp failed in terminal_inferior: Operation not permitted] (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) [10f] 320 x 200, 70Hz [112] 640 x 480, 60Hz, 72Hz, 75Hz, 85Hz, 100Hz [115] 800 x 600, 60Hz, 72Hz, 75Hz, 85Hz, 100Hz [118] 1024 x 768, 60Hz, 70Hz, 75Hz, 85Hz, 100Hz [11b] 1280 x 1024, 60Hz, 75Hz, 85Hz [11e] 640 x 400, 70Hz [124] 1600 x 1200, 60Hz, 75Hz, 85Hz [134] 320 x 240, 72Hz [13e] 1400 x 1050, 60Hz, 75Hz [144] 400 x 300, 72Hz [154] 512 x 384, 70Hz [175] 720 x 480, 75Hz [17f] 720 x 576, 75Hz Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0xb7b886c0 (LWP 30543)] xf86_wrap_crtc_notify (screen=0x9ea5b70, new=0xb7b278c0 ) at ../../../../hw/xfree86/modes/xf86Crtc.c:2947 warning: Source file is more recent than executable. 2947old = config->xf86_crtc_notify; (gdb) thread apply all bt Thread 1 (Thread 0xb7b886c0 (LWP 30543)): #0 xf86_wrap_crtc_notify (screen=0x9ea5b70, new=0xb7b278c0 ) at ../../../../hw/xfree86/modes/xf86Crtc.c:2947 #1 0xb7b27821 in DRIFinishScreenInit (pScreen=0x9ea5b70) at ../../../../hw/xfree86/dri/dri.c:620 #2 0xb7af1dc0 in SAVAGEDRIFinishScreenInit (pScreen=0x9ea5b70) at ../../src/savage_dri.c:1071 #3 0xb7ae56f2 in SavageScreenInit (scrnIndex=0, pScreen=0x9ea5b70, argc=1, argv=0xbf9841c4) at ../../src/savage_driver.c:3646 #4 0x080711dd in AddScreen (pfnInit=0xb7ae4910 , argc=1, argv=0xbf9841c4) at ../../dix/main.c:688 #5 0x080adeb6 in InitOutput (pScreenInfo=0x81f3ee0, argc=1, argv=0xbf9841c4) at ../../../../hw/xfree86/common/xf86Init.c:1245 #6 0x080718d1 in main (argc=1, argv=0xbf9841c4, envp=0xbf9841cc) at ../../dix/main.c:309 So the segfault happens in xf86_wrap_crtc_notify () when it tries to assign something to old. However, old is optimized out by the compiler: (gdb) p old $1 = (gdb) p *old Cannot access memory at address 0x0 S... it seems my problems are caused by a compiler bug... I'll rebuild without optimizations and try again... -- segfault during X startup with savage driver https://bugs.launchpad.net/bugs/311544 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 311544] Re: segfault during X startup with savage driver
Running 2.6.28 final now, bug still there... -- segfault during X startup with savage driver https://bugs.launchpad.net/bugs/311544 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 311544] Re: segfault during X startup with savage driver
** Attachment added: "Xorg.0.log" http://launchpadlibrarian.net/20745009/Xorg.0.log ** Attachment added: "Dependencies.txt" http://launchpadlibrarian.net/20745010/Dependencies.txt -- segfault during X startup with savage driver https://bugs.launchpad.net/bugs/311544 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 311544] Re: segfault during X startup with savage driver
Problem is also not related to the presence of the non_free ath_hal module - unloading this module does not make the problem disappear -- segfault during X startup with savage driver https://bugs.launchpad.net/bugs/311544 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 311544] Re: segfault during X startup with savage driver
BTW problem is not related to xorg.conf, it appears whether that file is present (with correct contents which used to work) or not. -- segfault during X startup with savage driver https://bugs.launchpad.net/bugs/311544 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
