* [Bug 103653] Unreal segfault since gallium/u_threaded: avoid syncs for get_query_result
@ 2017-11-09 18:28 bugzilla-daemon
2017-11-10 21:38 ` bugzilla-daemon
0 siblings, 1 reply; 2+ messages in thread
From: bugzilla-daemon @ 2017-11-09 18:28 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=103653
Bug ID: 103653
Summary: Unreal segfault since gallium/u_threaded: avoid syncs
for get_query_result
Product: Mesa
Version: git
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Drivers/Gallium/radeonsi
Assignee: dri-devel@lists.freedesktop.org
Reporter: adf.lists@gmail.com
QA Contact: dri-devel@lists.freedesktop.org
R9 285 Tonga, since
commit 244536d3d6b40c1763d1e2b3e7676665afa69101
Author: Nicolai Hähnle <nicolai.haehnle@amd.com>
Date: Sun Oct 22 17:38:51 2017 +0200
gallium/u_threaded: avoid syncs for get_query_result
Queries should still get marked as flushed when flushes are executed
asynchronously in the driver thread.
To this end, the management of the unflushed_queries list is moved into
the driver thread.
I get a segfault starting Unreal Elemental demo or unreal tournament.
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffe34f5700 (LWP 7403)]
tc_call_end_query (pipe=0x5301430, payload=0x54c2a48) at
util/u_threaded_context.c:374
374 if (!tq->head_unflushed.next)
(gdb) bt
#0 tc_call_end_query (pipe=0x5301430, payload=0x54c2a48) at
util/u_threaded_context.c:374
#1 0x00007ffff11bfdaf in tc_batch_execute (job=job@entry=0x54c27c0,
thread_index=thread_index@entry=0) at util/u_threaded_context.c:96
#2 0x00007ffff1083830 in util_queue_thread_func (input=input@entry=0x4c37fe0)
at u_queue.c:271
#3 0x00007ffff10834d7 in impl_thrd_routine (p=<optimized out>) at
../../include/c11/threads_posix.h:87
#4 0x00007ffff7bc5434 in start_thread () from /lib/libpthread.so.0
#5 0x00007ffff6a1206d in clone () from /lib/libc.so.6
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* [Bug 103653] Unreal segfault since gallium/u_threaded: avoid syncs for get_query_result
2017-11-09 18:28 [Bug 103653] Unreal segfault since gallium/u_threaded: avoid syncs for get_query_result bugzilla-daemon
@ 2017-11-10 21:38 ` bugzilla-daemon
0 siblings, 0 replies; 2+ messages in thread
From: bugzilla-daemon @ 2017-11-10 21:38 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=103653
Andy Furniss <adf.lists@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|NEW |RESOLVED
--- Comment #1 from Andy Furniss <adf.lists@gmail.com> ---
OK now
https://cgit.freedesktop.org/mesa/mesa/commit/?id=ee880e91ccf06fbf7cdea35c75b7dfd83bbc02b5
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