[Bug 101236] New: [IGT] [BDW] some gem_exec_whisper failed causing gpu hung! (vbe_init() failed with -22)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101236

            Bug ID: 101236
           Summary: [IGT] [BDW] some gem_exec_whisper failed causing gpu
                    hung! (vbe_init() failed with -22)
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: humberto.i.perez.rodriguez at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 131574
  --> https://bugs.freedesktop.org/attachment.cgi?id=131574&action=edit
dmesg.log

The following test cases causes gpu hung on BDW with latest configuration

Test cases
=======================================
igt at gem_exec_whisper@fds-chain
igt at gem_exec_whisper@blt-fds-forked

Test output
=======================================
(gem_exec_whisper:1445) igt-aux-CRITICAL: Test assertion failure function
sig_abort, file igt_aux.c:443:
(gem_exec_whisper:1445) igt-aux-CRITICAL: Failed assertion: !"GPU hung"
Stack trace:
  #0 [__igt_fail_assert+0x101]
  #1 [sig_abort+0x3a]
  #2 [killpg+0x40]
  #3 [__wait+0x1e]
  #4 [igt_waitchildren+0x68]
  #5 [whisper+0x1f9]
  #6 [__real_main532+0x2e6]
  #7 [main+0x33]
  #8 [__libc_start_main+0xf1]
  #9 [_start+0x29]
  #10 [<unknown>+0x29]
Subtest blt-fds-forked failed.
**** DEBUG ****
(gem_exec_whisper:1445) igt-debugfs-DEBUG: Opening debugfs directory
'/sys/kernel/debug/dri/0'
(gem_exec_whisper:1445) DEBUG: Test requirement passed: gem_has_ring(fd,
engine)
(gem_exec_whisper:1445) DEBUG: Test requirement passed: gem_can_store_dword(fd,
engine)
(gem_exec_whisper:1445) DEBUG: Test requirement passed: nengine
(gem_exec_whisper:1445) DEBUG: Test requirement passed: gen >= 6
(gem_exec_whisper:1445) igt-debugfs-DEBUG: Opening debugfs directory
'/sys/kernel/debug/dri/0'
(gem_exec_whisper:1445) igt-debugfs-DEBUG: Opening debugfs directory
'/sys/kernel/debug/dri/0'
(gem_exec_whisper:1445) igt-aux-CRITICAL: Test assertion failure function
sig_abort, file igt_aux.c:443:
(gem_exec_whisper:1445) igt-aux-CRITICAL: Failed assertion: !"GPU hung"
****  END  ****
Subtest blt-fds-forked: FAIL (8.173s)
(gem_exec_whisper:1445) igt-core-DEBUG: Exiting with status code 99



Software versions
=======================================
architecture                : x86_64
os version                  : Ubuntu 16.10
os codename                 : yakkety
kernel driver               : i915
bios revision               : 5.6
bios release date           : 05/29/2015

Component: drm
    tag: libdrm-2.4.80-18-gce9e3ba
    commit: ce9e3ba6e2cc65e1e9e6e05a5f326c4dd25ab2c4

Component: cairo
    tag: 1.15.4-22-g0fd0fd0
    commit: 0fd0fd0ae9ad8cfb177bb844091de98c0235917e

Component: intel-gpu-tools
    tag: intel-gpu-tools-1.18-211-g00ce341
    commit: 00ce341b95c718611689ded8ccec45086186c5b7

Component: piglit
    tag: piglit-v1
    commit: ebbb9c5dcc6a637884d54e06eb430a8c14993413


Kernel version
=========================================
commit 75397b60fe84eb5125a78a5ee304def86b761994
Author:     Chris Wilson <chris at chris-wilson.co.uk>
AuthorDate: Tue May 30 12:56:32 2017 +0100
Commit:     Chris Wilson <chris at chris-wilson.co.uk>
CommitDate: Tue May 30 12:56:32 2017 +0100

    drm-tip: 2017y-05m-30d-11h-55m-42s UTC integration manifest


Hardware
==========================================
platform                   : BDW
motherboard id             : NUC5i7RYB
form factor                : Desktop
cpu family                 : Core i7
cpu family id              : 6
cpu information            : Intel(R) Core(TM) i7-5557U CPU @ 3.10GHz
gpu card                   : Intel Corporation Iris Graphics 6100 (rev 09)
(prog-if 00 [VGA controller])
memory ram                 : 7.72 GB
max memory ram             : 16 GB
cpu thread                 : 4
cpu core                   : 2
cpu model                  : 61
cpu stepping               : 4
socket                     : Socket BGA1168
signature                  : Type 0, Family 6, Model 61, Stepping 4
hard drive                 : 447GiB (480GB)
current cd clock frequency : 337500 kHz
maximum cd clock frequency : 540000 kHz
displays connected         : HDMI-A-1 DP-1

kernel parameters
=============================================
quiet drm.debug=0xe auto panic=1 nmi_watchdog=panic resume=/dev/sda3 fastboot


Attachments
=============================================
dmesg.log
kern.log

Relevant dmesg messages :
=============================================
kern  :err   : [Tue May 30 06:08:21 2017] uvesafb: Getting VBE info block
failed (eax=0x4f00, err=1)
kern  :err   : [Tue May 30 06:08:21 2017] uvesafb: vbe_init() failed with -22

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