Hi,
On 18-05-17 15:59, Hans de Goede wrote:
Hi,
On 16-05-17 12:34, Jani Nikula wrote:
On Tue, 16 May 2017, Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> wrote:
mn Tue, May 16, 2017 at 10:47:48AM +0300, Jani Nikula wrote:
On Mon, 15 May 2017, Hans de Goede <hdegoede@xxxxxxxxxx> wrote:
Hi,
I'm seeing this on suspend/resume on a GPD-win,
cherrytrail z8700 device:
<snip>
ebf5f921478b ("drm/i915: Stop pretending to mask/unmask LPE audio
interrupts") is a more likely candidate.
I can confirm that that patch does fix this.
Is that applicable to v4.12-rc1?
I added it to my 4.12-rc1 based tree with a simple git cherry-pick
without any conflicts, so from a does it apply pov yes it is
applicable. If it is a good idea to merge it into 4.12-rc#, I don't
know.
I've been running with commit ebf5f921478b cherry picked into my
kernel for a while now on multiple Bay and Cherry Trail devices,
and it fixes the below oops on suspend resume.
Can we get this commit cherry-picked into fixes please ?
Note this is masking the other oops I reported since we only report
one of these per suspend/resume, which is likely why no-one else is
reporting the other oops.
Regards,
Hans
[ 75.514651] RPM wakelock ref not held during HW access
[ 75.514827] ------------[ cut here ]------------
[ 75.515025] WARNING: CPU: 2 PID: 1832 at drivers/gpu/drm/i915/intel_drv.h:1780 fwtable_write32+0x1d3/0x240 [i915]
...
[ 75.515704] RIP: 0010:fwtable_write32+0x1d3/0x240 [i915]
...
[ 75.515767] Call Trace:
[ 75.515952] lpe_audio_irq_unmask+0x6a/0xc0 [i915]
[ 75.515972] irq_enable+0x3a/0x50
[ 75.515984] __enable_irq+0x34/0x60
[ 75.515996] resume_irqs+0x8f/0xd0
[ 75.516007] resume_device_irqs+0x10/0x20
[ 75.516021] dpm_resume_noirq+0x23e/0x310
[ 75.516041] suspend_devices_and_enter+0x2f3/0x7f0
[ 75.516055] ? finish_wait+0x80/0x80
[ 75.516067] pm_suspend+0x335/0x3a0
[ 75.516078] state_store+0x85/0xf0
[ 75.516095] kobj_attr_store+0xf/0x20
[ 75.516108] sysfs_kf_write+0x37/0x40
[ 75.516117] kernfs_fop_write+0x11c/0x1a0
[ 75.516132] __vfs_write+0x37/0x160
[ 75.516145] ? selinux_file_permission+0xfb/0x120
[ 75.516158] ? security_file_permission+0x3b/0xc0
[ 75.516169] vfs_write+0xb1/0x1a0
[ 75.516180] SyS_write+0x55/0xc0
[ 75.516197] entry_SYSCALL_64_fastpath+0x1a/0xa5
...
[ 76.584235] PM: early resume of devices complete after 1067.477 msecs
If someone has a fix for this they want me to try, let me know.
Regards,
Hans
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--
Jani Nikula, Intel Open Source Technology Center
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