On Mon, Jul 12, 2010 at 09:20:03 -0700, Jesse Barnes wrote: > On Sat, 10 Jul 2010 02:33:28 +0200 (CEST) > "Rafael J. Wysocki" <rjw@xxxxxxx> wrote: > > > This message has been generated automatically as a part of a report > > of regressions introduced between 2.6.33 and 2.6.34. > > > > The following bug entry is on the current list of known regressions > > introduced between 2.6.33 and 2.6.34. Please verify if it still should > > be listed and let the tracking team know (either way). > > > > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=16207 > > Subject : Suspend and VT switch hangs since 2.6.34 > > Submitter : Tino Keitel <tino.keitel+xorg@xxxxxxxx> > > Date : 2010-06-09 17:53 (31 days old) > > Message-ID : <20100609175356.GA17332@xxxxxxxx> > > References : http://marc.info/?l=linux-kernel&m=127610606214060&w=2 > > Two commits in the X server repo (1.8 branch commits shown) might help > here: > > commit 665aa7ce8645b50b888db32ebab4e192dbe00649 > OS support: fix writeable client vs IgnoreClient behavior > > commit 090d26723f7cdbb3aebfe212170b7f81c163dd7b > dixstruct: make ignoreCount change more ABI friendly > > 2.6.34 introduced some new features, and X will test for them and use > them if available. However, the server's handling of clients was buggy > with the new code, which could cause clients to hang after VT switch, > waiting to be woken up. If if matters, I saw such messages in the server log when the hang happened: [mi] EQ overflowing. The server is probably stuck in an infinite loop. Backtrace: 0: /usr/bin/X (xorg_backtrace+0x28) [0x4ac648] 1: /usr/bin/X (mieqEnqueue+0x1f4) [0x4a1db4] 2: /usr/bin/X (xf86PostMotionEventP+0xc4) [0x464594] 3: /usr/lib/xorg/modules/input/evdev_drv.so (0x7f98a6913000+0x52ef) [0x7f98a69182ef] 4: /usr/bin/X (0x400000+0x73557) [0x473557] 5: /usr/bin/X (0x400000+0x11a3b4) [0x51a3b4] 6: /lib/libpthread.so.0 (0x7f98aab39000+0xea60) [0x7f98aab47a60] 7: /lib/libc.so.6 (memcpy+0x15b) [0x7f98a96a894b] 8: /usr/lib/xorg/modules/libfb.so (fbBlt+0xfc) [0x7f98a7227ddc] 9: /usr/lib/xorg/modules/libfb.so (fbOddTile+0x16e) [0x7f98a723427e] 10: /usr/lib/xorg/modules/libfb.so (fbFill+0x402) [0x7f98a722b982] 11: /usr/lib/xorg/modules/libfb.so (fbPolyFillRect+0x1da) [0x7f98a722bcda] 12: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7f98a7643000+0x3fbd1) [0x7f98a7682bd1] 13: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7f98a7643000+0x39450) [0x7f98a767c450] 14: /usr/bin/X (0x400000+0xdaffb) [0x4daffb] 15: /usr/bin/X (miPaintWindow+0x1aa) [0x452cea] 16: /usr/bin/X (miWindowExposures+0xc8) [0x453088] 17: /usr/bin/X (0x400000+0x11f1e7) [0x51f1e7] 18: /usr/bin/X (miHandleValidateExposures+0x2b) [0x56892b] 19: /usr/bin/X (0x400000+0x6b0c7) [0x46b0c7] 20: /usr/bin/X (xf86EnableDisableFBAccess+0x77) [0x46b177] 21: /usr/bin/X (0x400000+0x148660) [0x548660] 22: /usr/bin/X (xf86Wakeup+0x22a) [0x47397a] 23: /usr/bin/X (WakeupHandler+0x4b) [0x42adbb] 24: /usr/bin/X (WaitForSomething+0x1d5) [0x45eb45] 25: /usr/bin/X (0x400000+0x48a62) [0x448a62] 26: /usr/bin/X (0x400000+0x25c1a) [0x425c1a] 27: /lib/libc.so.6 (__libc_start_main+0xfd) [0x7f98a964aabd] 28: /usr/bin/X (0x400000+0x257c9) [0x4257c9] I use Xserver 1.7.x, the one which is currently in Debian unstable. Regards, Tino -- To unsubscribe from this list: send the line "unsubscribe kernel-testers" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
