https://bugs.freedesktop.org/show_bug.cgi?id=91520

Bug ID: 91520 Summary: [radeonsi, PIGLIT, regression] spec@arb_gpu_shader_fp64@execution@fs-indirect-temp-do uble-{dst,src} triggers SIGSEGV Product: Mesa Version: git Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Keywords: regression Severity: normal Priority: medium Component: Drivers/Gallium/radeonsi Assignee: dri-devel@lists.freedesktop.org Reporter: kai@dev.carbon-project.org QA Contact: dri-devel@lists.freedesktop.org

Created attachment 117480 --> https://bugs.freedesktop.org/attachment.cgi?id=117480&action=edit GDB: backtraces and register info for crashes

For two builds now I'm seeing the two Piglit tests spec@arb_gpu_shader_fp64@execution@fs-indirect-temp-double-{src,dst} crash in radeonsi_dri.so.

dmesg shows:

shader_runner[26631]: segfault at 2017f9ba1 ip 00007f16519bd800 sp 00007ffc79c82250 error 6 in radeonsi_dri.so[7f165140f000+7d3000]

Attached you'll find the GDB output (full backtrace, full register info) for the crashes triggered by both tests with my current stack (see below for details).

The last known good Mesa version was Git:master/bb9d59aed5 (build date 2015-07-26). The first known failing build was Git:master/fdb8487613 (build date 2015-07-30). The LLVM revision used for the fdb8487613 build was r243627 (LLVM SVN trunk, 3.8-devel). Sadly I can't seem to find the LLVM revision used by the bb9d59aed5 build anylonger. But it was probably a build of a revision from that day, since I'm using the snapshot builds from http://llvm.org/apt, which are done twice per day.

My current stack (Debian testing as a base): GPU: Hawaii PRO [Radeon R9 290] (ChipID = 0x67b1) Mesa: Git:master/5d29eaef85 libdrm: 2.4.62-1 LLVM: SVN:trunk/r243678 (3.8 devel) X.Org: 2:1.17.1-2 Linux: 4.1.3 Firmware: https://secure.freedesktop.org/~agd5f/radeon_ucode/hawaii/

286640da3d90d7b51bdb038b65addc47 hawaii_ce.bin 161105a73f7dfb2fca513327491c32d6 hawaii_mc.bin d6195059ea724981c9acd3abd6ee5166 hawaii_me.bin ad511d31a4fe3147c8d80b8f6770b8d5 hawaii_mec.bin 63eae3f33c77aadbc6ed1a09a2aed81e hawaii_pfp.bin 5b72c73acf0cbd0cbb639302f65bc7dc hawaii_rlc.bin f00de91c24b3520197e1ddb85d99c34a hawaii_sdma1.bin 8e16f749d62b150d0d1f580d71bc4348 hawaii_sdma.bin 7b6ca5302b56bd35bf52804919d57e63 hawaii_smc.bin 9f2ba7e720e2af4d7605a9a4fd903513 hawaii_uvd.bin b0f2a043e72fbf265b2f858b8ddbdb09 hawaii_vce.bin

libclc: Git:master/7958b0202b DDX: Git:master/b6d871bf29