[Bug 110757] Iris fails to start with new disk cache

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110757

            Bug ID: 110757
           Summary: Iris fails to start with new disk cache
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/Iris
          Assignee: intel-3d-bugs at lists.freedesktop.org
          Reporter: mike at fireburn.co.uk
        QA Contact: intel-3d-bugs at lists.freedesktop.org

I've captured a gdb backtrace when starting glxgears


(gdb) run
Starting program: /usr/bin/glxgears
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
glxgears: ../mesa-9999/src/gallium/drivers/iris/iris_disk_cache.c:240:
iris_disk_cache_init: Assertion `note && build_id_length(note) == 20' failed.

Program received signal SIGABRT, Aborted.
__GI_raise (sig=sig at entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
50      ../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) bt
#0  __GI_raise (sig=sig at entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#1  0x00007ffff7976535 in __GI_abort () at abort.c:79
#2  0x00007ffff797640f in __assert_fail_base (fmt=0x7ffff7aea640 "%s%s%s:%u:
%s%sAssertion `%s' failed.\n%n", assertion=0x7ffff70a6690 "note &&
build_id_length(note) == 20", file=0x7ffff70a6658
"../mesa-9999/src/gallium/drivers/iris/iris_disk_cache.c",
    line=240, function=<optimized out>) at assert.c:92
#3  0x00007ffff79848a2 in __GI___assert_fail
(assertion=assertion at entry=0x7ffff70a6690 "note && build_id_length(note) ==
20", file=file at entry=0x7ffff70a6658
"../mesa-9999/src/gallium/drivers/iris/iris_disk_cache.c", line=line at entry=240,
    function=function at entry=0x7ffff70a66e0 <__PRETTY_FUNCTION__.40902>
"iris_disk_cache_init") at assert.c:101
#4  0x00007ffff6c3fa56 in iris_disk_cache_init
(screen=screen at entry=0x5555555d1fc0) at
../mesa-9999/src/gallium/drivers/iris/iris_disk_cache.c:250
#5  0x00007ffff6c3f70a in iris_screen_create (fd=<optimized out>,
config=config at entry=0x7fffffffc9b0) at
../mesa-9999/src/gallium/drivers/iris/iris_screen.c:651
#6  0x00007ffff66649ee in iris_drm_screen_create (fd=<optimized out>,
config=0x7fffffffc9b0) at
../mesa-9999/src/gallium/winsys/iris/drm/iris_drm_winsys.c:33
#7  0x00007ffff646a7c9 in pipe_iris_create_screen (fd=<optimized out>,
config=<optimized out>) at
../mesa-9999/src/gallium/auxiliary/target-helpers/drm_helper.h:47
#8  0x00007ffff6517628 in pipe_loader_drm_create_screen (dev=<optimized out>,
config=<optimized out>) at
../mesa-9999/src/gallium/auxiliary/pipe-loader/pipe_loader_drm.c:304
#9  0x00007ffff651711f in pipe_loader_create_screen (dev=0x5555555cff60) at
../mesa-9999/src/gallium/auxiliary/pipe-loader/pipe_loader.c:128
#10 0x00007ffff646e675 in dri2_init_screen (sPriv=0x5555555ce490) at
../mesa-9999/src/gallium/state_trackers/dri/dri2.c:1956
#11 0x00007ffff646bfc6 in driCreateNewScreen2 (scrn=0, fd=4,
extensions=0x7ffff7e59aa0 <loader_extensions>, driver_extensions=<optimized
out>, driver_configs=0x7fffffffd3e0, data=0x555555581a30) at
../mesa-9999/src/mesa/drivers/dri/common/dri_util.c:153
#12 0x00007ffff7e2f1d7 in dri3_create_screen (screen=0, priv=0x55555557abc0) at
../mesa-9999/src/glx/dri3_glx.c:896
#13 0x00007ffff7e1bd94 in AllocAndFetchScreenConfigs
(dpy=dpy at entry=0x55555556de70, priv=priv at entry=0x55555557abc0) at
../mesa-9999/src/glx/glxext.c:823
#14 0x00007ffff7e1c11e in __glXInitialize (dpy=dpy at entry=0x55555556de70) at
../mesa-9999/src/glx/glxext.c:949
#15 0x00007ffff7e181b9 in GetGLXPrivScreenConfig (dpy=dpy at entry=0x55555556de70,
scrn=scrn at entry=0, ppriv=ppriv at entry=0x7fffffffd4e0,
ppsc=ppsc at entry=0x7fffffffd4e8) at ../mesa-9999/src/glx/glxcmds.c:174
#16 0x00007ffff7e188f9 in glXChooseVisual (dpy=0x55555556de70, screen=0,
attribList=0x7fffffffd730) at ../mesa-9999/src/glx/glxcmds.c:1262
#17 0x00005555555567df in make_window (dpy=0x55555556de70, name=0x5555555590cf
"glxgears", x=0, y=0, width=300, height=300, winRet=0x7fffffffd8b0,
ctxRet=0x7fffffffd8b8, visRet=0x7fffffffd8c0) at glxgears.c:520
#18 0x0000555555558302 in main (argc=1, argv=0x7fffffffd9d8) at glxgears.c:777

If there's anything else I can do to get more info out, please let me know

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