| Summary: | nouveau segfaults in p_atomic_dec_zero | ||
|---|---|---|---|
| Product: | Mesa | Reporter: | Alen Skondro <askondro> |
| Component: | Drivers/DRI/nouveau | Assignee: | Nouveau Project <nouveau> |
| Status: | RESOLVED FIXED | QA Contact: | |
| Severity: | major | ||
| Priority: | medium | ||
| Version: | git | ||
| Hardware: | x86-64 (AMD64) | ||
| OS: | Linux (All) | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
Forgot to add the latest commit I'm using... 23c0d469e55b3cb79ad4b2fd0d961562a26234fd Looks like I've been bitten by the same bug, or something similar. Everything was working fine until I pulled in the latest mesa from git and recompiled. Then gnome started going only into fallback mode. In dmesg I was getting: gnome-session-c[3618]: segfault at 100010001 ip 00007f0419ae0570 sp 00007fffd3204870 error 6 in nouveau_dri.so[7f0419a64000+495000] When in fallback mode, if I ran glxinfo it would also segfault: glxinfo[3729]: segfault at 100010001 ip 00007ffe31f49570 sp 00007fff22a85df0 error 6 in nouveau_dri.so[7ffe31ecd000+495000] Going back to commit b328949a37fee7b0f68ed3e068ffc4426c083042 fixed it. I'm afraid I have no backtrace but if someone can point me to some quick instructions I should be able to try to get one in a few days. Here is what lspci says my card is: 01:00.0 VGA compatible controller: NVIDIA Corporation G86M [Quadro NVS 135M] (rev a1) I'm using a very mixed Debian testing/unstable/experimental, kernel 3.2.0-2, amd64, on a Dell Latitude D630 laptop. (BTW, nouveau works moderately well on my box. I can run Gnome 3 but the zoom animations look like crap, maybe because the card stays in low-power mode. (I used to run the nvidia blob with Compiz, and I had to deactivate power saving to get good animations then.) After about 20-30 hours of use I usually get some kind of memory corruption, or X locks up, and I have to reboot. However, the 2d acceleration rocks, much faster than the blob! Makes it worth it.) Anyway, thanks to everyone for your great work! Greetings, Andrew El 11/05/12 08:10, bugzilla-daemon@freedesktop.org escribió: > https://bugs.freedesktop.org/show_bug.cgi?id=49815 > > --- Comment #1 from Alen Skondro<askondro@gmail.com> 2012-05-11 13:10:40 UTC --- > Forgot to add the latest commit I'm using... > > 23c0d469e55b3cb79ad4b2fd0d961562a26234fd > With latest git, this works for me again. |
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With latest mesa git (20120511) gnome starts in fallback mode only. Last known working mesa was from yesterday. I'm using kernel 3.4rc6 on arch linux. ============================================================================= Core was generated by `/usr/lib/gnome-session/gnome-session-check-accelerated-helper'. Program terminated with signal 11, Segmentation fault. #0 0x00007f4a758b1ffa in p_atomic_dec_zero (v=0x100010001) at ../../../../src/gallium/auxiliary/util/u_atomic.h:53 53 __asm__ __volatile__("lock; decl %0; sete %1":"+m"(*v), "=qm"(c) (gdb) bt #0 0x00007f4a758b1ffa in p_atomic_dec_zero (v=0x100010001) at ../../../../src/gallium/auxiliary/util/u_atomic.h:53 #1 0x00007f4a758b1f9a in pipe_reference_described (ptr=0x100010001, reference=0x0, get_desc=0x7f4a75c66e90 <debug_describe_resource>) at ../../../../src/gallium/auxiliary/util/u_inlines.h:88 #2 0x00007f4a758b2065 in pipe_resource_reference (ptr=0xfeeae8, tex=0x0) at ../../../../src/gallium/auxiliary/util/u_inlines.h:121 #3 0x00007f4a758b142b in nv50_set_constant_buffer (pipe=0xfee5d0, shader=3, index=0, cb=0x0) at nv50_state.c:761 #4 0x00007f4a75a97846 in st_destroy_context (st=0x1081550) at state_tracker/st_context.c:291 #5 0x00007f4a75960add in st_context_destroy (stctxi=0x1081550) at state_tracker/st_manager.c:596 #6 0x00007f4a75868a74 in dri_destroy_context (cPriv=0xfee590) at dri_context.c:174 #7 0x00007f4a75861b4b in driDestroyContext (pcp=0xfee590) at ../../../../src/mesa/drivers/dri/common/dri_util.c:301 #8 0x00007f4a791147dd in dri2_destroy_context (context=0xfee3f0) at dri2_glx.c:132 #9 0x00007f4a790cd4b2 in glXDestroyContext (dpy=0xf9a2d0, ctx=0xfee3f0) at glxcmds.c:424