On Tue, Oct 10, 2017 at 05:19:05PM +0000, Adam Jackson wrote: > 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
Hey, Thanks for the suggestion. I've compiled a debug version of X. I'll reply back once I've reproduced the issue with more info. -- Best Regards, Peter Kasza http://www.itinsight.hu [email protected] () ascii ribbon campaign - against html e-mail /\ www.asciiribbon.org - against proprietary attachments _______________________________________________ [email protected]: X.Org support Archives: http://lists.freedesktop.org/archives/xorg Info: https://lists.x.org/mailman/listinfo/xorg Your subscription address: %(user_address)s
