Hi
Since I've started to use SNA driver (when UXA appeared to be very
slow), I'm facing higher number of Xorg crashes.
SNA is faster, but less stable then UXA is.
So I'll start posting backtraces since I've recompiled driver with
--enable-debug.
They all happend with stock 3.4 kernel and
xorg-x11-server-Xorg-1.12.1-1.fc18.x86_64
I'm not really sure if that's important - but usually typing in pidgin
window is highly risky operation,
since typically when I need to write something 'important' my screen
goes to black.
My system is T61, GMA965
Zdenek
git commit for SNA driver in use: fb9da4cb9e12ca733c31879b8b37906f361a8c35
#0 0x00007f96025f7935 in __GI_raise (sig=sig at entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:64
64 return INLINE_SYSCALL (tgkill, 3, pid, selftid, sig);
(gdb) bt
#0 0x00007f96025f7935 in __GI_raise (sig=sig at entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:64
#1 0x00007f96025f90e8 in __GI_abort () at abort.c:91
#2 0x00007f96025f06b2 in __assert_fail_base (fmt=0x7f960273a408
"%s%s%s:%u: %s%sAssertion `%s' failed.\n%n",
assertion=assertion at entry=0x7f96009e743b "!kgem->wedged",
file=file at entry=0x7f96009e6f15 "kgem.h", line=line at entry=295,
function=function at entry=0x7f96009ec795 "kgem_set_mode") at assert.c:94
#3 0x00007f96025f0762 in __GI___assert_fail
(assertion=assertion at entry=0x7f96009e743b "!kgem->wedged",
file=file at entry=0x7f96009e6f15 "kgem.h", line=line at entry=295,
function=function at entry=0x7f96009ec795 "kgem_set_mode")
at assert.c:103
#4 0x00007f960099b619 in kgem_set_mode (kgem=0x7f9604693218,
mode=<optimized out>) at kgem.h:295
#5 gen4_get_batch (sna=sna at entry=0x7f9604693010) at gen4_render.c:1303
#6 0x00007f960099c5e3 in gen4_bind_surfaces
(sna=sna at entry=0x7f9604693010, op=op at entry=0x7fff4fb65580) at
gen4_render.c:1505
#7 0x00007f96009a03dd in gen4_render_composite (tmp=0x7fff4fb65580,
height=28, width=2, dst_y=0, dst_x=21968, msk_y=0,
msk_x=0, src_y=0, src_x=0, dst=0x47ffea0, mask=<optimized out>,
src=0x4b97190, op=<optimized out>, sna=0x7f9604693010)
at gen4_render.c:2512
#8 gen4_render_composite (sna=0x7f9604693010, op=<optimized out>,
src=0x4b97190, mask=<optimized out>, dst=0x47ffea0,
src_x=0, src_y=0, msk_x=0, msk_y=0, dst_x=21, dst_y=105, width=2,
height=28, tmp=0x7fff4fb65580) at gen4_render.c:2351
#9 0x00007f960095c301 in sna_composite (op=3 '\003', src=0x4b97190,
mask=0x0, dst=0x47ffea0, src_x=0, src_y=0, mask_x=0,
mask_y=0, dst_x=21, dst_y=105, width=2, height=28) at sna_composite.c:504
#10 0x00000000005019f9 in damageComposite (op=3 '\003',
pSrc=0x4b97190, pMask=0x0, pDst=0x47ffea0, xSrc=0, ySrc=0, xMask=0,
yMask=0, xDst=21, yDst=105, width=2, height=28) at damage.c:562
#11 0x00000000004fa964 in ProcRenderComposite (client=0x2a0e6f0) at render.c:707
#12 0x00000000004343ba in Dispatch () at dispatch.c:425
#13 0x0000000000423405 in main (argc=4, argv=0x7fff4fb65a28,
envp=<optimized out>) at main.c:288
(same as above with full)
(gdb) bt full
#0 0x00007f96025f7935 in __GI_raise (sig=sig at entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:64
resultvar = 0
pid = 3805
selftid = 3805
#1 0x00007f96025f90e8 in __GI_abort () at abort.c:91
save_stage = 2
act = {__sigaction_handler = {sa_handler = 0x7fff4fb6655f,
sa_sigaction = 0x7fff4fb6655f}, sa_mask = {__val = {
140282262944941, 140282232205077, 295, 28,
140282261610737, 105, 4294967253, 17179869184, 4, 140734530736752,
0, 0, 0, 140282262944747, 140282296639488,
140282262955016}}, sa_flags = 10384443,
sa_restorer = 0x7f96009ec795 <__PRETTY_FUNCTION__.19690>}
sigs = {__val = {32, 0 <repeats 15 times>}}
#2 0x00007f96025f06b2 in __assert_fail_base (fmt=0x7f960273a408
"%s%s%s:%u: %s%sAssertion `%s' failed.\n%n",
assertion=assertion at entry=0x7f96009e743b "!kgem->wedged",
file=file at entry=0x7f96009e6f15 "kgem.h", line=line at entry=295,
function=function at entry=0x7f96009ec795 "kgem_set_mode") at assert.c:94
str = 0x2fe18b0 ""
total = 4096
#3 0x00007f96025f0762 in __GI___assert_fail
(assertion=assertion at entry=0x7f96009e743b "!kgem->wedged",
file=file at entry=0x7f96009e6f15 "kgem.h", line=line at entry=295,
function=function at entry=0x7f96009ec795 "kgem_set_mode")
at assert.c:103
No locals.
#4 0x00007f960099b619 in kgem_set_mode (kgem=0x7f9604693218,
mode=<optimized out>) at kgem.h:295
No locals.
#5 gen4_get_batch (sna=sna at entry=0x7f9604693010) at gen4_render.c:1303
No locals.
#6 0x00007f960099c5e3 in gen4_bind_surfaces
(sna=sna at entry=0x7f9604693010, op=op at entry=0x7fff4fb65580) at
gen4_render.c:1505
binding_table = <optimized out>
offset = <optimized out>
#7 0x00007f96009a03dd in gen4_render_composite (tmp=0x7fff4fb65580,
height=28, width=2, dst_y=0, dst_x=21968, msk_y=0,
msk_x=0, src_y=0, src_x=0, dst=0x47ffea0, mask=<optimized out>,
src=0x4b97190, op=<optimized out>, sna=0x7f9604693010)
at gen4_render.c:2512
No locals.
-----------------------------------------------------------
another one:
#0 0x00007f47fedde935 in __GI_raise (sig=sig at entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:64
64 return INLINE_SYSCALL (tgkill, 3, pid, selftid, sig);
(gdb) bt
#0 0x00007f47fedde935 in __GI_raise (sig=sig at entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:64
#1 0x00007f47fede00e8 in __GI_abort () at abort.c:91
#2 0x00007f47fedd76b2 in __assert_fail_base (fmt=0x7f47fef21408
"%s%s%s:%u: %s%sAssertion `%s' failed.\n%n",
assertion=assertion at entry=0x7f47fd1d0e28
"pixman_region_not_empty(&damage->region)",
file=file at entry=0x7f47fd1d0b53 "sna_damage.c",
line=line at entry=1036, function=function at entry=0x7f47fd1d0f20
"__sna_damage_subtract") at assert.c:94
#3 0x00007f47fedd7762 in __GI___assert_fail
(assertion=assertion at entry=0x7f47fd1d0e28
"pixman_region_not_empty(&damage->region)",
file=file at entry=0x7f47fd1d0b53 "sna_damage.c",
line=line at entry=1036, function=function at entry=0x7f47fd1d0f20
"__sna_damage_subtract") at assert.c:103
#4 0x00007f47fd145c3f in __sna_damage_subtract (region=<optimized
out>, damage=0x1cfc770) at sna_damage.c:1036
#5 _sna_damage_subtract (damage=0x1cfc770,
region=region at entry=0x7fff6d4d1480) at sna_damage.c:1070
#6 0x00007f47fd137a7d in sna_damage_subtract (region=0x7fff6d4d1480,
damage=0x4683358) at sna_damage.h:156
#7 sna_put_zpixmap_blt (stride=<optimized out>,
bits=0x6cc6348
"f\204\244\377d\202\242\377`~\236\377\\z\232\377Xv\226\377Vt\224\377Vt\224\377Vt\224\377Wu\225\377Wu\225\377St\223\377Qr\221\377No\216\377Kl\213\377Kl\213\377Kl\213\377Kl\213\377Kl\213\377Jk\212\377Hi\210\377Hg\207\377Hf\206\377Hf\206\377Hf\206\377Hf\206\377Hf\206\377Hf\206\377He\205\377He\205\377He\205\377Ie\205\377Ie\205\377Ie\205\377Ie\205\377Ie\205\377Ie\205\377Ie\205\377Jf\206\377Jf\206\377Jf\206\377Kg\207\377Lg\207\377Lg\207\377Mh\210\377Nh\210\377Ok\213\377Pl\214\377Ol\214\377Ol\214\377Nl\214\377"...,
h=70, w=76, y=254, x=417, region=0x7fff6d4d1480, gc=0x1d91db0,
drawable=0x46832d0) at sna_accel.c:2919
#8 sna_put_image (drawable=0x46832d0, gc=0x1d91db0, depth=32, x=417,
y=254, w=76, h=70, left=0, format=2,
bits=0x6cc6348
"f\204\244\377d\202\242\377`~\236\377\\z\232\377Xv\226\377Vt\224\377Vt\224\377Vt\224\377Wu\225\377Wu\225\377St\223\377Qr\221\377No\216\377Kl\213\377Kl\213\377Kl\213\377Kl\213\377Kl\213\377Jk\212\377Hi\210\377Hg\207\377Hf\206\377Hf\206\377Hf\206\377Hf\206\377Hf\206\377Hf\206\377He\205\377He\205\377He\205\377Ie\205\377Ie\205\377Ie\205\377Ie\205\377Ie\205\377Ie\205\377Ie\205\377Jf\206\377Jf\206\377Jf\206\377Kg\207\377Lg\207\377Lg\207\377Mh\210\377Nh\210\377Ok\213\377Pl\214\377Ol\214\377Ol\214\377Nl\214\377"...)
at sna_accel.c:3305
#9 0x0000000000504d42 in damagePutImage (pDrawable=0x46832d0,
pGC=0x1d91db0, depth=32, x=417, y=254, w=<optimized out>, h=70,
leftPad=0, format=2,
pImage=0x6cc6348
"f\204\244\377d\202\242\377`~\236\377\\z\232\377Xv\226\377Vt\224\377Vt\224\377Vt\224\377Wu\225\377Wu\225\377St\223\377Qr\221\377No\216\377Kl\213\377Kl\213\377Kl\213\377Kl\213\377Kl\213\377Jk\212\377Hi\210\377Hg\207\377Hf\206\377Hf\206\377Hf\206\377Hf\206\377Hf\206\377Hf\206\377He\205\377He\205\377He\205\377Ie\205\377Ie\205\377Ie\205\377Ie\205\377Ie\205\377Ie\205\377Ie\205\377Jf\206\377Jf\206\377Jf\206\377Kg\207\377Lg\207\377Lg\207\377Mh\210\377Nh\210\377Ok\213\377Pl\214\377Ol\214\377Ol\214\377Nl\214\377"...)
at damage.c:795
#10 0x0000000000430fc3 in ProcPutImage (client=0x1de7c60) at dispatch.c:1960
#11 0x00000000004343ba in Dispatch () at dispatch.c:425
#12 0x0000000000423405 in main (argc=4, argv=0x7fff6d4d1768,
envp=<optimized out>) at main.c:288
(gdb) bt full
#0 0x00007f47fedde935 in __GI_raise (sig=sig at entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:64
resultvar = 0
pid = 7164
selftid = 7164
#1 0x00007f47fede00e8 in __GI_abort () at abort.c:91
save_stage = 2
act = {__sigaction_handler = {sa_handler = 0x7fff6d4d255f,
sa_sigaction = 0x7fff6d4d255f}, sa_mask = {__val = {139947196673197,
139947165944659, 1036, 324, 139947195338993, 324,
140735027155836, 0, 4, 140735027155552, 0, 0, 0, 139947196673003,
139947230347264,
139947196683272}}, sa_flags = -48427480, sa_restorer =
0x7f47fd1d0f20 <__PRETTY_FUNCTION__.21516>}
sigs = {__val = {32, 0 <repeats 15 times>}}
#2 0x00007f47fedd76b2 in __assert_fail_base (fmt=0x7f47fef21408
"%s%s%s:%u: %s%sAssertion `%s' failed.\n%n",
assertion=assertion at entry=0x7f47fd1d0e28
"pixman_region_not_empty(&damage->region)",
file=file at entry=0x7f47fd1d0b53 "sna_damage.c",
line=line at entry=1036, function=function at entry=0x7f47fd1d0f20
"__sna_damage_subtract") at assert.c:94
str = 0x2226940 ""
total = 4096
#3 0x00007f47fedd7762 in __GI___assert_fail
(assertion=assertion at entry=0x7f47fd1d0e28
"pixman_region_not_empty(&damage->region)",
file=file at entry=0x7f47fd1d0b53 "sna_damage.c",
line=line at entry=1036, function=function at entry=0x7f47fd1d0f20
"__sna_damage_subtract") at assert.c:103
No locals.
#4 0x00007f47fd145c3f in __sna_damage_subtract (region=<optimized
out>, damage=0x1cfc770) at sna_damage.c:1036
No locals.
#5 _sna_damage_subtract (damage=0x1cfc770,
region=region at entry=0x7fff6d4d1480) at sna_damage.c:1070
No locals.
#6 0x00007f47fd137a7d in sna_damage_subtract (region=0x7fff6d4d1480,
damage=0x4683358) at sna_damage.h:156
No locals.
#7 sna_put_zpixmap_blt (stride=<optimized out>,
bits=0x6cc6348
"f\204\244\377d\202\242\377`~\236\377\\z\232\377Xv\226\377Vt\224\377Vt\224\377Vt\224\377Wu\225\377Wu\225\377St\223\377Qr\221\377No\216\377Kl\213\377Kl\213\377Kl\213\377Kl\213\377Kl\213\377Jk\212\377Hi\210\377Hg\207\377Hf\206\377Hf\206\377Hf\206\377Hf\206\377Hf\206\377Hf\206\377He\205\377He\205\377He\205\377Ie\205\377Ie\205\377Ie\205\377Ie\205\377Ie\205\377Ie\205\377Ie\205\377Jf\206\377Jf\206\377Jf\206\377Kg\207\377Lg\207\377Lg\207\377Mh\210\377Nh\210\377Ok\213\377Pl\214\377Ol\214\377Ol\214\377Nl\214\377"...,
h=70, w=76, y=254, x=417, region=0x7fff6d4d1480, gc=0x1d91db0,
drawable=0x46832d0) at sna_accel.c:2919
dst_bits = <optimized out>
box = <optimized out>
sna = 0x7f4800e7a010
priv = 0x4683340
dst_stride = <optimized out>
dx = <optimized out>
n = 0
dy = <optimized out>
#8 sna_put_image (drawable=0x46832d0, gc=0x1d91db0, depth=32, x=417,
y=254, w=76, h=70, left=0, format=2,
bits=0x6cc6348
"f\204\244\377d\202\242\377`~\236\377\\z\232\377Xv\226\377Vt\224\377Vt\224\377Vt\224\377Wu\225\377Wu\225\377St\223\377Qr\221\377No\216\377Kl\213\377Kl\213\377Kl\213\377Kl\213\377Kl\213\377Jk\212\377Hi\210\377Hg\207\377Hf\206\377Hf\206\377Hf\206\377Hf\206\377Hf\206\377Hf\206\377He\205\377He\205\377He\205\377Ie\205\377Ie\205\377Ie\205\377Ie\205\377Ie\205\377Ie\205\377Ie\205\377Jf\206\377Jf\206\377Jf\206\377Kg\207\377Lg\207\377Lg\207\377Mh\210\377Nh\210\377Ok\213\377Pl\214\377Ol\214\377Ol\214\377Nl\214\377"...)
at sna_accel.c:3305
pixmap = 0x0
sna = 0x46832d0
priv = 0x6
region = {extents = {x1 = 417, y1 = 254, x2 = 493, y2 = 324},
data = 0x0}
dx = 0
dy = <optimized out>
#9 0x0000000000504d42 in damagePutImage (pDrawable=0x46832d0,
pGC=0x1d91db0, depth=32, x=417, y=254, w=<optimized out>, h=70,
leftPad=0, format=2,
pImage=0x6cc6348
"f\204\244\377d\202\242\377`~\236\377\\z\232\377Xv\226\377Vt\224\377Vt\224\377Vt\224\377Wu\225\377Wu\225\377St\223\377Qr\221\377No\216\377Kl\213\377Kl\213\377Kl\213\377Kl\213\377Kl\213\377Jk\212\377Hi\210\377Hg\207\377Hf\206\377Hf\206\377Hf\206\377Hf\206\377Hf\206\377Hf\206\377He\205\377He\205\377He\205\377Ie\205\377Ie\205\377Ie\205\377Ie\205\377Ie\205\377Ie\205\377Ie\205\377Jf\206\377Jf\206\377Jf\206\377Kg\207\377Lg\207\377Lg\207\377Mh\210\377Nh\210\377Ok\213\377Pl\214\377Ol\214\377Ol\214\377Nl\214\377"...)
at damage.c:795
pGCPriv = 0x1d91e90
oldFuncs = 0x7ce940
Usually this comes in kernel message log:
[drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
[drm] capturing error event; look for more information in
/debug/dri/0/i915_error_state
[drm:init_ring_common] *ERROR* render ring initialization failed ctl
00000000 head 00000000 tail 00000000 start 00000000
[drm] Changing LVDS panel from (+hsync, +vsync) to (-hsync, -vsync)
------------[ cut here ]------------
WARNING: at drivers/gpu/drm/i915/intel_display.c:793
intel_enable_pipe+0x12c/0x150 [i915]()
Hardware name: 6464CTO
PLL state assertion failure (expected on, current off)
Modules linked in: virtio_net i915 i2c_algo_bit drm_kms_helper drm
ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat
nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT
iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables bridge stp
llc ipv6 snd_hda_codec_analog arc4 usbhid hid iwl3945 iwlegacy
mac80211 microcode psmouse serio_raw i2c_i801 i2c_core snd_hda_intel
snd_hda_codec cfg80211 iTCO_wdt snd_pcm iTCO_vendor_support
snd_page_alloc e1000e snd_timer wmi thinkpad_acpi nvram binfmt_misc
snd soundcore evdev loop vhost_net tun kvm_intel kvm nfsd exportfs
nfs_acl auth_rpcgss lockd sunrpc autofs4 pcmcia sr_mod cdrom sdhci_pci
sdhci mmc_core yenta_socket uhci_hcd ehci_hcd usbcore usb_common video
backlight
Pid: 6158, comm: kworker/u:0 Not tainted 3.4.0-00006-g2cf6c39 #62
Call Trace:
[<ffffffff8103b50f>] warn_slowpath_common+0x7f/0xc0
[<ffffffff8103b606>] warn_slowpath_fmt+0x46/0x50
[<ffffffffa05601fc>] intel_enable_pipe+0x12c/0x150 [i915]
[<ffffffffa0563c75>] i9xx_crtc_mode_set+0x905/0xea0 [i915]
[<ffffffff815159b2>] ? _raw_spin_unlock_irqrestore+0x42/0x80
[<ffffffffa05048fd>] ? drm_vblank_off+0x25d/0x370 [drm]
[<ffffffffa055d761>] intel_crtc_mode_set+0x71/0xb0 [i915]
[<ffffffffa016301d>] drm_crtc_helper_set_mode+0x2cd/0x4b0 [drm_kms_helper]
[<ffffffff8107e157>] ? local_clock+0x47/0x60
[<ffffffffa0163273>] drm_helper_resume_force_mode+0x73/0x170 [drm_kms_helper]
[<ffffffffa053aa43>] i915_reset+0x423/0x540 [i915]
[<ffffffffa053f328>] i915_error_work_func+0xc8/0x110 [i915]
[<ffffffff8105d665>] process_one_work+0x1a5/0x6b0
[<ffffffff8105d5ff>] ? process_one_work+0x13f/0x6b0
[<ffffffff81514dc9>] ? _raw_spin_lock_irq+0x19/0x80
[<ffffffffa053f260>] ? ironlake_irq_preinstall+0x1b0/0x1b0 [i915]
[<ffffffff8105deee>] worker_thread+0x12e/0x2d0
[<ffffffff8105ddc0>] ? rescuer_thread+0x210/0x210
[<ffffffff81067072>] kthread+0xa2/0xb0
[<ffffffff8151e674>] kernel_thread_helper+0x4/0x10
[<ffffffff810736dc>] ? finish_task_switch+0x7c/0x120
[<ffffffff8151594b>] ? _raw_spin_unlock_irq+0x3b/0x60
[<ffffffff81515c5d>] ? retint_restore_args+0xe/0xe
[<ffffffff81066fd0>] ? kthread_worker_fn+0x1a0/0x1a0
[<ffffffff8151e670>] ? gs_change+0xb/0xb
---[ end trace 22330988b26ffedd ]---
------------[ cut here ]------------
WARNING: at drivers/gpu/drm/i915/intel_display.c:934
assert_pipe+0x8e/0x90 [i915]()
Hardware name: 6464CTO
pipe B assertion failure (expected on, current off)
Modules linked in: virtio_net i915 i2c_algo_bit drm_kms_helper drm
ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat
nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT
iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables bridge stp
llc ipv6 snd_hda_codec_analog arc4 usbhid hid iwl3945 iwlegacy
mac80211 microcode psmouse serio_raw i2c_i801 i2c_core snd_hda_intel
snd_hda_codec cfg80211 iTCO_wdt snd_pcm iTCO_vendor_support
snd_page_alloc e1000e snd_timer wmi thinkpad_acpi nvram binfmt_misc
snd soundcore evdev loop vhost_net tun kvm_intel kvm nfsd exportfs
nfs_acl auth_rpcgss lockd sunrpc autofs4 pcmcia sr_mod cdrom sdhci_pci
sdhci mmc_core yenta_socket uhci_hcd ehci_hcd usbcore usb_common video
backlight
Pid: 6158, comm: kworker/u:0 Tainted: G W 3.4.0-00006-g2cf6c39 #62
Call Trace:
[<ffffffff8103b50f>] warn_slowpath_common+0x7f/0xc0
[<ffffffff8103b606>] warn_slowpath_fmt+0x46/0x50
[<ffffffffa05608ce>] assert_pipe+0x8e/0x90 [i915]
[<ffffffffa0560c36>] intel_enable_plane+0x36/0x90 [i915]
[<ffffffffa0563cb7>] i9xx_crtc_mode_set+0x947/0xea0 [i915]
[<ffffffff815159b2>] ? _raw_spin_unlock_irqrestore+0x42/0x80
[<ffffffffa05048fd>] ? drm_vblank_off+0x25d/0x370 [drm]
[<ffffffffa055d761>] intel_crtc_mode_set+0x71/0xb0 [i915]
[<ffffffffa016301d>] drm_crtc_helper_set_mode+0x2cd/0x4b0 [drm_kms_helper]
[<ffffffff8107e157>] ? local_clock+0x47/0x60
[<ffffffffa0163273>] drm_helper_resume_force_mode+0x73/0x170 [drm_kms_helper]
[<ffffffffa053aa43>] i915_reset+0x423/0x540 [i915]
[<ffffffffa053f328>] i915_error_work_func+0xc8/0x110 [i915]
[<ffffffff8105d665>] process_one_work+0x1a5/0x6b0
[<ffffffff8105d5ff>] ? process_one_work+0x13f/0x6b0
[<ffffffff81514dc9>] ? _raw_spin_lock_irq+0x19/0x80
[<ffffffffa053f260>] ? ironlake_irq_preinstall+0x1b0/0x1b0 [i915]
[<ffffffff8105deee>] worker_thread+0x12e/0x2d0
[<ffffffff8105ddc0>] ? rescuer_thread+0x210/0x210
[<ffffffff81067072>] kthread+0xa2/0xb0
[<ffffffff8151e674>] kernel_thread_helper+0x4/0x10
[<ffffffff810736dc>] ? finish_task_switch+0x7c/0x120
[<ffffffff8151594b>] ? _raw_spin_unlock_irq+0x3b/0x60
[<ffffffff81515c5d>] ? retint_restore_args+0xe/0xe
[<ffffffff81066fd0>] ? kthread_worker_fn+0x1a0/0x1a0
[<ffffffff8151e670>] ? gs_change+0xb/0xb
---[ end trace 22330988b26ffede ]---
------------[ cut here ]------------
