On Mon, 2017-10-09 at 13:07 +0200, Peter Kasza wrote: > Hi all, > > I'm getting itermittent crashes on a vfio enabled machine. I'm not > able to recreate it on purpose, but it seems to be occurring when > virtualbox VMs and Firefox are running. > > From the backtrace I suspect that some bogus parameter is passed to > the snprintf call, but other than that I'm not sure. > > The crash occurs in libpciaccess - pci_device_vgaarb_set_target. I > have the latest release installed (0.13.5). > > Program terminated with signal SIGSEGV, Segmentation fault. > #0 0x00007f17082667a3 in __GI__IO_default_xsputn () from /usr/lib/libc.so.6 > [Current thread is 1 (Thread 0x7f170aa11940 (LWP 491))] > (gdb) bt > #0 0x00007f17082667a3 in __GI__IO_default_xsputn () at /usr/lib/libc.so.6 > #1 0x00007f1708259b2d in __GI__IO_padn () at /usr/lib/libc.so.6 > #2 0x00007f1708239938 in vfprintf () at /usr/lib/libc.so.6 > #3 0x00007f17082efcbb in __vsnprintf_chk () at /usr/lib/libc.so.6 > #4 0x00007f17082efbe5 in __snprintf_chk () at /usr/lib/libc.so.6 > #5 0x00007f1709a966b8 in pci_device_vgaarb_set_target () at > /usr/lib/libpciaccess.so.0 > #6 0x00005616427d1fc8 in ()
Any chance you can (install debuginfo and) see the rest of this call trace? I suspect the value of 'dev' being passed into pci_device_vgaarb_set_target is just bogus, but without the call trace up through Xorg it's hard to see how that could happen. - ajax _______________________________________________ xorg@lists.x.org: X.Org support Archives: http://lists.freedesktop.org/archives/xorg Info: https://lists.x.org/mailman/listinfo/xorg Your subscription address: %(user_address)s
