Backtrace collected with gdb per x.org single computer debugging recommendations.

libdrm-2.4.79-backtrace.log (text/plain), 5.89 KB, created by Phil Turmel on 2017-04-14 02:24:27 UTC

[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
(--) Log file renamed from "/var/log/Xorg.pid-11725.log" to "/var/log/Xorg.0.log"

X.Org X Server 1.18.4
Release Date: 2016-07-19
X Protocol Version 11, Revision 0
Build Operating System: Linux 4.9.22 x86_64 Gentoo
Current Operating System: Linux corvus 4.9.22 #221 SMP PREEMPT Thu Apr 13 10:39:15 EDT 2017 x86_64
Kernel command line: usbcore.autosuspend=-1 rd.auto rd.shell root=/dev/vg0/Root acpi_backlight=vendor nouveau.config=NvForcePost=1 
Build Date: 13 April 2017  07:48:39PM
 
Current version of pixman: 0.34.0
	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: Thu Apr 13 20:27:44 2017
(==) Using config directory: "/etc/X11/xorg.conf.d"
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
resize called 1920 1080

Program received signal SIGUSR1, User defined signal 1.
(II) AIGLX: Suspending AIGLX clients for VT switch

Program received signal SIGUSR1, User defined signal 1.

Program received signal SIGUSR1, User defined signal 1.
(II) AIGLX: Suspending AIGLX clients for VT switch

Program received signal SIGUSR1, User defined signal 1.

Program received signal SIGSEGV, Segmentation fault.
0x0000000000000024 in ?? ()
#0  0x0000000000000024 in ?? ()
No symbol table info available.
#1  0x00007ff021b9fdda in drmHandleEvent (fd=18, evctx=evctx@entry=0x1b61478)
    at /var/tmp/portage/x11-libs/libdrm-2.4.79/work/libdrm-2.4.79/xf86drmMode.c:923
        buffer = "\002\000\000\000 \000\000\000p\335\362\001\000\000\000\000B\b\000\000\250B\r\000\005\360\001\000\000\000\000\000\035\000\000\000\000\000\000\000\362\nD\000\000\000\000\000P\241\354\001\000\000\000\000\n\235\330\034\360\177\000\000X\005", '\000' <repeats 30 times>, "\b\000\000\000\000\000\000\000\035\000\000\000\000\000\000\000\001\000\000\000\000\000\000\000\000\000T\024\360\177\000\000\340\271\354\001\000\000\000\000 \000\000\000X\005\000\000\000\000\000\000\000\000\000\000@\237\243\"\360\177\000\000\000\000\000\000\377\377\377\377\276\000\000\000\000\000\000\000\000P\277\"\360\177\000\000XJ\271!\360\177\000\000\070a\271!\360\177\000\000"...
        len = 32
        i = 0
        e = 0x7ffef2aa7220
        vblank = 0x7ffef2aa7220
        user_data = <optimized out>
#2  0x00007ff01d3dd069 in drmmode_wakeup_handler (data=0x1b60c00, 
    err=<optimized out>, p=0x82f4a0 <LastSelectMask>)
    at /var/tmp/portage/x11-drivers/xf86-video-nouveau-1.0.14/work/xf86-video-nouveau-1.0.14/src/drmmode_display.c:1635
        scrn = 0x1b60c00
        read_mask = 0x82f4a0 <LastSelectMask>
#3  0x000000000043a22d in WakeupHandler (result=result@entry=1, 
    pReadmask=pReadmask@entry=0x82f4a0 <LastSelectMask>)
    at /var/tmp/portage/x11-base/xorg-server-1.18.4/work/xorg-server-1.18.4/dix/dixutils.c:423
        i = <optimized out>
        j = <optimized out>
#4  0x00000000005893bf in WaitForSomething (
    pClientsReady=pClientsReady@entry=0x1e0ce60)
    at /var/tmp/portage/x11-base/xorg-server-1.18.4/work/xorg-server-1.18.4/os/WaitFor.c:230
        i = 1
        waittime = {tv_sec = 119, tv_usec = 168997}
        wt = 0x7ffef2aa7710
        timeout = <optimized out>
        clientsReadable = {fds_bits = {0 <repeats 16 times>}}
        clientsWritable = {fds_bits = {0 <repeats 16 times>}}
        selecterr = 11
        nready = 0
        devicesReadable = {fds_bits = {140732969679152, 32, 0, 
            -8101327717410486272, 28941040, -8101327717410486272, 8582984, 
            -8101327717410486272, 32768, 0, 879608696012, 28747072, 0, 
            28747072, 0, 0}}
        now = <optimized out>
        someReady = <optimized out>
#5  0x00000000004354ce in Dispatch ()
    at /var/tmp/portage/x11-base/xorg-server-1.18.4/work/xorg-server-1.18.4/dix/dispatch.c:359
        clientReady = 0x1e0ce60
        result = <optimized out>
        client = <optimized out>
        nready = <optimized out>
        icheck = 0x827db0 <checkForInput>
        start_tick = <optimized out>
#6  0x00000000004396a3 in dix_main (argc=12, argv=0x7ffef2aa7b18, 
    envp=<optimized out>)
    at /var/tmp/portage/x11-base/xorg-server-1.18.4/work/xorg-server-1.18.4/dix/main.c:300
        i = <optimized out>
        alwaysCheckForInput = {0, 1}
#7  0x00007ff020a271e0 in __libc_start_main (main=0x423980 <main>, argc=12, 
    argv=0x7ffef2aa7b18, init=<optimized out>, fini=<optimized out>, 
    rtld_fini=<optimized out>, stack_end=0x7ffef2aa7b08)
    at ../csu/libc-start.c:289
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 5812985937822100855, 
                4340112, 140732969679632, 0, 0, -5812394456116482697, 
                -5815380661274792585}, mask_was_saved = 0}}, priv = {pad = {
              0x0, 0x0, 0x7ffef2aa7b80, 0x7ff022c55128}, data = {prev = 0x0, 
              cleanup = 0x0, canceltype = -223708288}}}
        not_first_call = <optimized out>
#8  0x00000000004239ba in _start () at ../sysdeps/x86_64/start.S:120
No locals.
(EE) 
(EE) Backtrace:
(EE) 0: /usr/bin/Xorg (OsSigHandler+0x29) [0x590989]
(EE) 1: /lib64/libc.so.6 (killpg+0x40) [0x7ff020a3a1af]
(EE) 2: ? (?+0x40) [0x64]
(EE) 
(EE) Segmentation fault at address 0x24
(EE) 
Fatal server error:
(EE) Caught signal 11 (Segmentation fault). Server aborting
(EE) 
(EE) 
Please consult the The X.Org Foundation support 
	 at http://wiki.x.org
 for help. 
(EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
(EE) 
(II) AIGLX: Suspending AIGLX clients for VT switch
(EE) Server terminated with error (1). Closing log file.

Program received signal SIGABRT, Aborted.
__GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:58
58	../sysdeps/unix/sysv/linux/raise.c: No such file or directory.