From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 95026] Alien Isolation segfault after initial loading screen/video Date: Tue, 19 Apr 2016 22:52:38 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0257425277==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [IPv6:2610:10:20:722:a800:ff:fe98:4b55]) by gabe.freedesktop.org (Postfix) with ESMTP id EA16D89E57 for ; Tue, 19 Apr 2016 22:52:37 +0000 (UTC) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============0257425277== Content-Type: multipart/alternative; boundary="14611063570.67BdD.26441"; charset="UTF-8" --14611063570.67BdD.26441 Date: Tue, 19 Apr 2016 22:52:37 +0000 MIME-Version: 1.0 Content-Type: text/plain https://bugs.freedesktop.org/show_bug.cgi?id=95026 --- Comment #8 from Christoph Haag --- Looks like it's the only one: Thread 32 "WinMain" received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fffc84b1700 (LWP 11301)] 0x00007fffe979cb77 in glsl_to_tgsi_visitor::visit (this=0x7fff3ea10aa0, ir=0x7fff3e263c40) at state_tracker/st_glsl_to_tgsi.cpp:1537 warning: Source file is more recent than executable. 1537 { (gdb) i threads Id Target Id Frame 1 Thread 0x7ffff7fdaec0 (LWP 11258) "AlienIsolation" 0x00007ffff6ef977d in nanosleep () from /usr/lib/libpthread.so.0 2 Thread 0x7fffee897700 (LWP 11262) "SDLTimer" 0x00007ffff6ef85f5 in do_futex_wait () from /usr/lib/libpthread.so.0 3 Thread 0x7fffe5a64700 (LWP 11263) "AlienIsolation" 0x00007ffff6ef603f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0 4 Thread 0x7fffdf705700 (LWP 11264) "PulseHotplug" 0x00007ffff536ad01 in ppoll () from /usr/lib/libc.so.6 5 Thread 0x7fffdd8c9700 (LWP 11265) "CFileWriterThre" 0x00007ffff6ef603f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0 6 Thread 0x7fffdd35b700 (LWP 11266) "OpenGL dispatch" 0x00007ffff6ef8427 in do_futex_wait.constprop () from /usr/lib/libpthread.so.0 7 Thread 0x7fffdcb5a700 (LWP 11267) "AlienIsolation" 0x00007ffff534361d in nanosleep () from /usr/lib/libc.so.6 8 Thread 0x7fffd7fff700 (LWP 11268) "OpenGL dispatch" 0x00007ffff6ef8427 in do_futex_wait.constprop () from /usr/lib/libpthread.so.0 9 Thread 0x7fffd77fe700 (LWP 11273) "WinMain" 0x00007ffff6ef8427 in do_futex_wait.constprop () from /usr/lib/libpthread.so.0 10 Thread 0x7fffc92f6700 (LWP 11279) "OpenGL dispatch" 0x00007ffff6ef8427 in do_futex_wait.constprop () from /usr/lib/libpthread.so.0 11 Thread 0x7fffc8af5700 (LWP 11280) "WinMain" 0x00007ffff6ef63e8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0 12 Thread 0x7fffd415a700 (LWP 11281) "WinMain" 0x00007ffff6ef603f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0 13 Thread 0x7fffd4109700 (LWP 11282) "WinMain" 0x00007ffff6ef603f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0 14 Thread 0x7fffd40b8700 (LWP 11283) "WinMain" 0x00007ffff6ef603f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0 15 Thread 0x7fff957fc700 (LWP 11284) "SDLAudioDev2" 0x00007ffff536ad01 in ppoll () from /usr/lib/libc.so.6 16 Thread 0x7fffd4067700 (LWP 11285) "WinMain" 0x00007ffff6ef603f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0 17 Thread 0x7fffc86b4700 (LWP 11286) "WinMain" 0x00007ffff6ef603f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0 18 Thread 0x7fffc8663700 (LWP 11287) "WinMain" 0x00007ffff6ef603f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0 31 Thread 0x7fffc8612700 (LWP 11300) "WinMain" 0x00007ffff6ef603f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0 * 32 Thread 0x7fffc84b1700 (LWP 11301) "WinMain" 0x00007fffe979cb77 in glsl_to_tgsi_visitor::visit (this=0x7fff3ea10aa0, ir=0x7fff3e263c40) at state_tracker/st_glsl_to_tgsi.cpp:1537 33 Thread 0x7fffc8469700 (LWP 11302) "WinMain" 0x00007ffff6ef8427 in do_futex_wait.constprop () from /usr/lib/libpthread.so.0 34 Thread 0x7fffc8408700 (LWP 11303) "WinMain" 0x00007ffff6ef8427 in do_futex_wait.constprop () from /usr/lib/libpthread.so.0 36 Thread 0x7fffc835b700 (LWP 11305) "WinMain" 0x00007ffff6ef603f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0 38 Thread 0x7fffc830a700 (LWP 11307) "WinMain" 0x00007ffff534361d in nanosleep () from /usr/lib/libc.so.6 39 Thread 0x7fff7bffe700 (LWP 11308) "vpx decode" 0x00007ffff6ef603f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0 I'm not exactly an expert at debugging C, but it's kinda weird that it's segfaulting on the opening brace of void glsl_to_tgsi_visitor::visit(ir_expression *ir) { unsigned int operand; Googling a bit sounds like it's a stack overflow: http://stackoverflow.com/a/10501490 With "disas" gdb actually allows me to see the assembler instructions before the crash. Yay. 0x00007fffe979cb70 <+32>: sub $0x1000,%rsp => 0x00007fffe979cb77 <+39>: orq $0x0,(%rsp) but not sure why: (gdb) print ir->operands $1 = {0x7fff3eb22770, 0x0, 0x0, 0x0} (gdb) info locals operand = op = {{file = PROGRAM_TEMPORARY, index = 0, index2D = 0, swizzle = 0, negate = 0, type = 0, reladdr = 0x0, reladdr2 = 0x0, has_index2 = false, double_reg2 = false, array_id = 0, is_double_vertex_input = false}, {file = PROGRAM_TEMPORARY, index = 0, index2D = 0, swizzle = 0, negate = 0, type = 0, reladdr = 0x0, reladdr2 = 0x0, has_index2 = false, double_reg2 = false, array_id = 0, is_double_vertex_input = false}, {file = PROGRAM_TEMPORARY, index = 0, index2D = 0, swizzle = 0, negate = 0, type = 0, reladdr = 0x0, reladdr2 = 0x0, has_index2 = false, double_reg2 = false, array_id = 0, is_double_vertex_input = false}, {file = PROGRAM_TEMPORARY, index = 0, index2D = 0, swizzle = 0, negate = 0, type = 0, reladdr = 0x0, reladdr2 = 0x0, has_index2 = false, double_reg2 = false, array_id = 0, is_double_vertex_input = false}} result_src = result_dst = __PRETTY_FUNCTION__ = "virtual void glsl_to_tgsi_visitor::visit(ir_expression*)" vector_elements = -- You are receiving this mail because: You are the assignee for the bug. --14611063570.67BdD.26441 Date: Tue, 19 Apr 2016 22:52:37 +0000 MIME-Version: 1.0 Content-Type: text/html

Comment # 8 on bug 95026 from 
Looks like it's the only one:
Thread 32 "WinMain" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffc84b1700 (LWP 11301)]
0x00007fffe979cb77 in glsl_to_tgsi_visitor::visit (this=0x7fff3ea10aa0,
ir=0x7fff3e263c40) at state_tracker/st_glsl_to_tgsi.cpp:1537
warning: Source file is more recent than executable.
1537    {
(gdb) i threads
  Id   Target Id         Frame
  1    Thread 0x7ffff7fdaec0 (LWP 11258) "AlienIsolation" 0x00007ffff6ef977d in
nanosleep () from /usr/lib/libpthread.so.0
  2    Thread 0x7fffee897700 (LWP 11262) "SDLTimer" 0x00007ffff6ef85f5 in
do_futex_wait () from /usr/lib/libpthread.so.0
  3    Thread 0x7fffe5a64700 (LWP 11263) "AlienIsolation" 0x00007ffff6ef603f in
pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
  4    Thread 0x7fffdf705700 (LWP 11264) "PulseHotplug" 0x00007ffff536ad01 in
ppoll () from /usr/lib/libc.so.6
  5    Thread 0x7fffdd8c9700 (LWP 11265) "CFileWriterThre" 0x00007ffff6ef603f
in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
  6    Thread 0x7fffdd35b700 (LWP 11266) "OpenGL dispatch" 0x00007ffff6ef8427
in do_futex_wait.constprop () from /usr/lib/libpthread.so.0
  7    Thread 0x7fffdcb5a700 (LWP 11267) "AlienIsolation" 0x00007ffff534361d in
nanosleep () from /usr/lib/libc.so.6
  8    Thread 0x7fffd7fff700 (LWP 11268) "OpenGL dispatch" 0x00007ffff6ef8427
in do_futex_wait.constprop () from /usr/lib/libpthread.so.0
  9    Thread 0x7fffd77fe700 (LWP 11273) "WinMain" 0x00007ffff6ef8427 in
do_futex_wait.constprop () from /usr/lib/libpthread.so.0
  10   Thread 0x7fffc92f6700 (LWP 11279) "OpenGL dispatch" 0x00007ffff6ef8427
in do_futex_wait.constprop () from /usr/lib/libpthread.so.0
  11   Thread 0x7fffc8af5700 (LWP 11280) "WinMain" 0x00007ffff6ef63e8 in
pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
  12   Thread 0x7fffd415a700 (LWP 11281) "WinMain" 0x00007ffff6ef603f in
pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
  13   Thread 0x7fffd4109700 (LWP 11282) "WinMain" 0x00007ffff6ef603f in
pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
  14   Thread 0x7fffd40b8700 (LWP 11283) "WinMain" 0x00007ffff6ef603f in
pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
  15   Thread 0x7fff957fc700 (LWP 11284) "SDLAudioDev2" 0x00007ffff536ad01 in
ppoll () from /usr/lib/libc.so.6
  16   Thread 0x7fffd4067700 (LWP 11285) "WinMain" 0x00007ffff6ef603f in
pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
  17   Thread 0x7fffc86b4700 (LWP 11286) "WinMain" 0x00007ffff6ef603f in
pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
  18   Thread 0x7fffc8663700 (LWP 11287) "WinMain" 0x00007ffff6ef603f in
pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
  31   Thread 0x7fffc8612700 (LWP 11300) "WinMain" 0x00007ffff6ef603f in
pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
* 32   Thread 0x7fffc84b1700 (LWP 11301) "WinMain" 0x00007fffe979cb77 in
glsl_to_tgsi_visitor::visit (this=0x7fff3ea10aa0, ir=0x7fff3e263c40) at
state_tracker/st_glsl_to_tgsi.cpp:1537
  33   Thread 0x7fffc8469700 (LWP 11302) "WinMain" 0x00007ffff6ef8427 in
do_futex_wait.constprop () from /usr/lib/libpthread.so.0
  34   Thread 0x7fffc8408700 (LWP 11303) "WinMain" 0x00007ffff6ef8427 in
do_futex_wait.constprop () from /usr/lib/libpthread.so.0
  36   Thread 0x7fffc835b700 (LWP 11305) "WinMain" 0x00007ffff6ef603f in
pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
  38   Thread 0x7fffc830a700 (LWP 11307) "WinMain" 0x00007ffff534361d in
nanosleep () from /usr/lib/libc.so.6
  39   Thread 0x7fff7bffe700 (LWP 11308) "vpx decode" 0x00007ffff6ef603f in
pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0


I'm not exactly an expert at debugging C, but it's kinda weird that it's
segfaulting on the opening brace of

void
glsl_to_tgsi_visitor::visit(ir_expression *ir)
{
   unsigned int operand;

Googling a bit sounds like it's a stack overflow:
http://stackoverflow.com/a/10501490
With "disas" gdb actually allows me to see the assembler instructions before
the crash. Yay.

   0x00007fffe979cb70 <+32>:    sub    $0x1000,%rsp
=> 0x00007fffe979cb77 <+39>:    orq    $0x0,(%rsp)

but not sure why:

(gdb) print ir->operands
$1 = {0x7fff3eb22770, 0x0, 0x0, 0x0}

(gdb) info locals
operand = <optimized out>
op = {{file = PROGRAM_TEMPORARY, index = 0, index2D = 0, swizzle = 0, negate =
0, type = 0, reladdr = 0x0, reladdr2 = 0x0, has_index2 = false, double_reg2 =
false, array_id = 0,
    is_double_vertex_input = false}, {file = PROGRAM_TEMPORARY, index = 0,
index2D = 0, swizzle = 0, negate = 0, type = 0, reladdr = 0x0, reladdr2 = 0x0,
has_index2 = false,
    double_reg2 = false, array_id = 0, is_double_vertex_input = false}, {file =
PROGRAM_TEMPORARY, index = 0, index2D = 0, swizzle = 0, negate = 0, type = 0,
reladdr = 0x0,
    reladdr2 = 0x0, has_index2 = false, double_reg2 = false, array_id = 0,
is_double_vertex_input = false}, {file = PROGRAM_TEMPORARY, index = 0, index2D
= 0, swizzle = 0, negate = 0,
    type = 0, reladdr = 0x0, reladdr2 = 0x0, has_index2 = false, double_reg2 =
false, array_id = 0, is_double_vertex_input = false}}
result_src = <optimized out>
result_dst = <optimized out>
__PRETTY_FUNCTION__ = "virtual void
glsl_to_tgsi_visitor::visit(ir_expression*)"
vector_elements = <optimized out>

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