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SubjectRe: [REGRESSION]: hibernate/sleep regression w/ bisection
On Tue, Nov 01, 2011 at 10:46:58PM -0700, Dmitry Torokhov wrote:
>
> I am not sure how this commit could cause your "no video" issue...
> Are you hibernating from text console or X? Can you try plugging in USB
> keyboard and see if you are getting input? What about ssh into the box?
>
> Thanks.
>
> --
> Dmitry

Hi Dmitry et al.

Yes, I was hibernating from X. I do not have problems when I hibernate from
console.

I conducted the following exercise: a script runs a 20-hibernate loop that
saves dmesg output to individual files and pings my httpd server (on lo)
after every resume.

From X, with the vanilla 2.6.39.4 kernel, I had 5 bad resumes out of 20
(the script continues though). My httpd server is pinged after all 20
resumes and my dmesg is saved to a file. So, even after the bad resumes,
loopback networking and HD IO are functional.

The five problem resumes all have a similar warning in dmesg (see below).
I am copying Rafael Wysocki (since I can't seem to post to linux-pm@)
and David Airlie (given the 'GPU lockup CP stall' message). [Please see
thread https://lkml.org/lkml/2011/11/1/126 for complete history]

The same loop test conducted either a) from console or b) from X after
reversing commits 8ee294cd9def000 & 1d64b655dc083df encounters no problems
(all 20 resumes succeed) and there are no GPU lockup messages in my saved
dmesg output.

System specs:
P4 + ATI 9100IGP

~ Andy

PS. My messages do not arrive to linux-pm@lists.linux-foundation.org. Does
posting require subscription?

-----------------------------

[ 243.626231] radeon 0000:01:05.0: GPU lockup CP stall for more than 82318msec
[ 243.626236] ------------[ cut here ]------------
[ 243.626252] WARNING: at drivers/gpu/drm/radeon/radeon_fence.c:246 radeon_fence_wait+0x2c3/0x311()
[ 243.626256] Hardware name: Pavilion zv5000
[ 243.626259] GPU lockup (waiting for 0x00000F8C last fence id 0x00000F8A)
[ 243.626262] Modules linked in: fan snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss fuse pl2303 snd_atiixp snd_ac97_codec ac97_bus snd_pcm pcmcia snd_timer snd ohci_hcd shpchp processor yenta_socket pcmcia_rsrc ssb video thermal wmi battery button ac ehci_hcd thermal_sys pcmcia_core firewire_ohci snd_page_alloc
[ 243.626311] Pid: 1646, comm: X Tainted: G M 2.6.39.4 #19
[ 243.626314] Call Trace:
[ 243.626325] [<c1033164>] warn_slowpath_common+0x67/0x8e
[ 243.626331] [<c12c082a>] ? radeon_fence_wait+0x2c3/0x311
[ 243.626335] [<c12c082a>] ? radeon_fence_wait+0x2c3/0x311
[ 243.626339] [<c1033207>] warn_slowpath_fmt+0x2e/0x30
[ 243.626344] [<c12c082a>] radeon_fence_wait+0x2c3/0x311
[ 243.626352] [<c104b12a>] ? wake_up_bit+0x62/0x62
[ 243.626358] [<c12c0e37>] radeon_sync_obj_wait+0xc/0xe
[ 243.626363] [<c12908be>] ttm_bo_wait+0xa1/0x108
[ 243.626371] [<c12d6e7b>] radeon_gem_wait_idle_ioctl+0x76/0xc4
[ 243.626378] [<c127e62e>] drm_ioctl+0x1c2/0x42c
[ 243.626383] [<c12d6e05>] ? radeon_gem_set_tiling_ioctl+0x8e/0x8e
[ 243.626389] [<c109ad9a>] ? perf_pmu_enable+0x1a/0x21
[ 243.626395] [<c1026eed>] ? update_curr+0x164/0x24d
[ 243.626403] [<c11f5171>] ? rb_erase+0x16e/0x27a
[ 243.626411] [<c1007ba8>] ? __switch_to_xtra+0xf7/0x11d
[ 243.626417] [<c103015e>] ? set_next_entity+0xad/0xc1
[ 243.626422] [<c127e46c>] ? drm_version+0x8a/0x8a
[ 243.626428] [<c10e288e>] do_vfs_ioctl+0x79/0x54b
[ 243.626436] [<c158c95a>] ? schedule+0x29a/0x614
[ 243.626441] [<c10e2dcb>] sys_ioctl+0x6b/0x70
[ 243.626446] [<c1593813>] sysenter_do_call+0x12/0x22
[ 243.626449] ---[ end trace 17a119d9361222c9 ]---
[ 243.633615] radeon 0000:01:05.0: GPU reset succeed
[ 243.671128] radeon 0000:01:05.0: WB disabled
[ 243.671170] [drm] radeon: ring at 0x00000000D2001000
[ 243.671189] [drm] ring test succeeded in 0 usecs
[ 243.671200] [drm] ib test succeeded in 1 usecs
[ 243.704033] ohci_hcd 0000:00:13.1: auto-stop root hub
[ 243.704048] ohci_hcd 0000:00:13.0: auto-stop root hub

-----------------------------




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