.
Thread 3 (LWP 1127):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1  0x00007f18eb0371c1 in __run__ (arg=0x7f18f2777160) at ../../../src/sna/sna_threads.c:61
        t = 0x7f18f2777160
        signals = {__val = {18446744067267100671, 18446744073709551615 <repeats 15 times>}}
#2  0x00007f18ef6a7182 in start_thread (arg=0x7f18e9b2b700) at pthread_create.c:312
        __res = <optimized out>
        pd = 0x7f18e9b2b700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139744976746240, -1929168759709464509, 0, 0, 139744976746944, 139744976746240, 1948902359048161347, 1948908476862728259}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#3  0x00007f18ee1b5b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 2 (LWP 1126):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1  0x00007f18eb0371c1 in __run__ (arg=0x7f18f27770f0) at ../../../src/sna/sna_threads.c:61
        t = 0x7f18f27770f0
        signals = {__val = {18446744067267100671, 18446744073709551615 <repeats 15 times>}}
#2  0x00007f18ef6a7182 in start_thread (arg=0x7f18ea32c700) at pthread_create.c:312
        __res = <optimized out>
        pd = 0x7f18ea32c700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139744985138944, -1929168759709464509, 0, 0, 139744985139648, 139744985138944, 1948901258999662659, 1948908476862728259}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#3  0x00007f18ee1b5b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 1 (LWP 1098):
#0  0x00007f18ee0f1f39 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
        resultvar = 0
        pid = 1098
        selftid = 1098
#1  0x00007f18ee0f5348 in __GI_abort () at abort.c:89
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x7fff6e3aafa2, sa_sigaction = 0x7fff6e3aafa2}, sa_mask = {__val = {139745051250760, 139745090186530, 3920, 4294967295, 139745049888595, 0, 140735042719392, 49093971760, 139745124097904, 139745124097824, 0, 0, 0, 21474836480, 139745088352256, 139745051266016}}, sa_flags = -260723369, sa_restorer = 0x7f18f075ade0 <__PRETTY_FUNCTION__.18250>}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007f18ee0eadf6 in __assert_fail_base (fmt=0x7f18ee23cbe0 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0x7f18f075ad57 "slave->isGPU", file=file@entry=0x7f18f075ad22 "../../dix/dispatch.c", line=line@entry=3920, function=function@entry=0x7f18f075ade0 <__PRETTY_FUNCTION__.18250> "DetachUnboundGPU") at assert.c:92
        str = 0x7f18f29e6ae0 ""
        total = 4096
#3  0x00007f18ee0eaea2 in __GI___assert_fail (assertion=assertion@entry=0x7f18f075ad57 "slave->isGPU", file=file@entry=0x7f18f075ad22 "../../dix/dispatch.c", line=line@entry=3920, function=function@entry=0x7f18f075ade0 <__PRETTY_FUNCTION__.18250> "DetachUnboundGPU") at assert.c:101
No locals.
#4  0x00007f18f05f8030 in DetachUnboundGPU (slave=<optimized out>) at ../../dix/dispatch.c:3920
        __PRETTY_FUNCTION__ = "DetachUnboundGPU"
#5  0x00007f18f067515b in xf86RandR14ProviderSetOutputSource (pScreen=0x44a, provider=0x44a, source_provider=0x6) at ../../../../hw/xfree86/modes/xf86RandR12.c:1806
No locals.
#6  0x00007f18f06ba9c8 in dixLookupPrivate (key=<optimized out>, privates=0x7f18f2774d88) at ../../include/privates.h:165
No locals.
#7  ProcRRSetProviderOutputSource (client=<optimized out>) at ../../randr/rrprovider.c:303
        stuff = 0x7f18f29d98e0
        provider = 0x7f18f2785790
        source_provider = 0x7f18f2785790
        pScreen = 0x7f18f27749b0
#8  0x00007f18f05f7a9e in Dispatch () at ../../dix/dispatch.c:433
        clientReady = 0x7f18f29ee5c0
        result = <optimized out>
        client = 0x7f18f277d500
        nready = 0
        icheck = 0x7f18f09e29b0 <checkForInput>
        start_tick = 0
#9  0x00007f18f05fb89a in dix_main (argc=9, argv=0x7fff6e3a9208, envp=<optimized out>) at ../../dix/main.c:294
        i = <optimized out>
        alwaysCheckForInput = {0, 1}
#10 0x00007f18ee0dced5 in __libc_start_main (main=0x7f18f05e6e50 <main>, argc=9, argv=0x7fff6e3a9208, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff6e3a91f8) at libc-start.c:287
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -1929168759709464509, 139745088663125, 140735042720256, 0, 0, 1928925264282945603, 1948909788195096643}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x7f18f075a3d0 <strlcpy+80>, 0x7fff6e3a9208}, data = {prev = 0x0, cleanup = 0x0, canceltype = -260725808}}}
        not_first_call = <optimized out>
#11 0x00007f18f05e6e7e in _start ()
No symbol table info available.