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Bug#1025297: xorg server failure with kvm and either qxl-vga or virtio-vga [was: Re: Bug#1025297: virtualbox guest segfault with 22.3]



Re: 1025297@bugs.debian.org

I can add to the confirmations: With the following packages installed:

libegl-mesa0 libgbm1 libgl1-mesa-dri libglapi-mesa libglx-mesa0 -- all
at version 22.3.0-1 -- on an x86_64 qemu guest, using kvm
virtualization with both virtio-vga and qxl-vga, i get the same crashes
of the xorg server.

A downgrade of the above packages to 22.2.4-1 seems to fix it.

a stacktrace from the crashing versions (22.3.0-1) using qxl-vga follows
below.

Regards,

        --dkg

X.Org X Server 1.21.1.4
X Protocol Version 11, Revision 0
Current Operating System: Linux xxxx 6.0.0-5-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.0.10-2 (2022-12-01) x86_64
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-6.0.0-5-amd64 root=UUID=f6076ba7-eb3a-44e0-9b57-91b42d88e781 ro console=ttyS0,115200n8 quiet
xorg-server 2:21.1.4-3 (https://www.debian.org/support)
Current version of pixman: 0.42.2
        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  4 23:06:25 2022
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
(II) [KMS] Kernel modesetting enabled.
resizing primary to 1024x768
primary is 0x559ca4c32fb0
(EE)
(EE) Backtrace:
(EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x139) [0x559ca391dc59]
(EE) 1: /lib/x86_64-linux-gnu/libc.so.6 (__sigaction+0x40) [0x7fdfb0e5af90]
(EE) unw_get_proc_name failed: no unwind info found [-10]
(EE) 2: /lib64/ld-linux-x86-64.so.2 (?+0x0) [0x7fdfb174a029]
(EE) 3: /lib/x86_64-linux-gnu/libc.so.6 (_dl_catch_exception+0x7a) [0x7fdfb0f6de9a]
(EE) 4: /lib/x86_64-linux-gnu/libc.so.6 (_dl_catch_error+0x2f) [0x7fdfb0f6df4f]
(EE) 5: /lib/x86_64-linux-gnu/libc.so.6 (dlerror+0x297) [0x7fdfb0ea3dc7]
(EE) 6: /lib/x86_64-linux-gnu/libc.so.6 (dlclose+0x36) [0x7fdfb0ea3b26]
(EE) 7: /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so (nouveau_drm_screen_create+0x1d50f4) [0x7fdfaeee7f44]
(EE) 8: /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so (nouveau_drm_screen_create+0x1d4340) [0x7fdfaeee7190]
(EE) unw_get_proc_name failed: no unwind info found [-10]
(EE) 9: /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so (?+0x0) [0x7fdfae4aa179]
(EE) 10: /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so (__driDriverGetExtensions_d3d12+0x60ae16) [0x7fdfaeab5156]
(EE) 11: /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so (__driDriverGetExtensions_d3d12+0x60ad84) [0x7fdfaeab50c4]
(EE) 12: /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so (__driDriverGetExtensions_d3d12+0x6f4) [0x7fdfae4aaa34]
(EE) 13: /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so (__driDriverGetExtensions_d3d12+0xa175) [0x7fdfae4b44b5]
(EE) unw_get_proc_name failed: no unwind info found [-10]
(EE) 14: /usr/lib/xorg/modules/extensions/libglx.so (?+0x0) [0x7fdfb0831d77]
(EE) unw_get_proc_name failed: no unwind info found [-10]
(EE) 15: /usr/lib/xorg/modules/extensions/libglx.so (?+0x0) [0x7fdfb0830b7f]
(EE) 16: /usr/lib/xorg/Xorg (_CallCallbacks+0x34) [0x559ca37afa24]
(EE) 17: /usr/lib/xorg/Xorg (dri3_send_open_reply+0x10af) [0x559ca38dba9f]
(EE) 18: /usr/lib/xorg/Xorg (InitExtensions+0x89) [0x559ca381b2a9]
(EE) 19: /usr/lib/xorg/Xorg (InitFonts+0x1e8) [0x559ca37ae4e8]
(EE) 20: /lib/x86_64-linux-gnu/libc.so.6 (__libc_init_first+0x8a) [0x7fdfb0e4618a]
(EE) 21: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0x85) [0x7fdfb0e46245]
(EE) 22: /usr/lib/xorg/Xorg (_start+0x21) [0x559ca3797b61]
(EE)
(EE) Segmentation fault at address 0x337
(EE)
Fatal server error:
(EE) Caught signal 11 (Segmentation fault). Server aborting

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