Re: Linux 5.8-rc1 BUG unable to handle page fault (snd_pcm)

2020-06-15 Thread Linus Torvalds
On Mon, Jun 15, 2020 at 2:18 PM Shuah Khan wrote: > > Yeah. I should have thought about adding module path. With module path > added, I get better results: > > [ 15.341267] ? snd_pcm_hw_params (./include/linux/string.h:391 > /home/shuah/lkml/linux_5.8/sound/core/pcm_native.c:759) snd_pcm > [

Re: Linux 5.8-rc1 BUG unable to handle page fault (snd_pcm)

2020-06-15 Thread Shuah Khan
On 6/15/20 2:55 PM, Linus Torvalds wrote: On Mon, Jun 15, 2020 at 1:41 PM Shuah Khan wrote: I have CONFIG_DEBUG_INFO enabled. Ran the stack trace through scripts/decode_stacktrace.sh Thanks. It looks like it isn't needed and people already know what the cause is. Also, sadly the stack

Re: Linux 5.8-rc1 BUG unable to handle page fault (snd_pcm)

2020-06-15 Thread Shuah Khan
On 6/15/20 2:53 PM, Shuah Khan wrote: On 6/15/20 1:57 PM, Takashi Iwai wrote: On Mon, 15 Jun 2020 20:48:11 +0200, Shuah Khan wrote: I am seeing the following problem on my system. I haven't started debug yet. Is this a known issue? Yes, the recent fix by David should paper over it:

Re: Linux 5.8-rc1 BUG unable to handle page fault (snd_pcm)

2020-06-15 Thread Linus Torvalds
On Mon, Jun 15, 2020 at 1:41 PM Shuah Khan wrote: > > I have CONFIG_DEBUG_INFO enabled. Ran the stack trace through > scripts/decode_stacktrace.sh Thanks. It looks like it isn't needed and people already know what the cause is. Also, sadly the stack trace decoding didn't end up as useful as it

Re: Linux 5.8-rc1 BUG unable to handle page fault (snd_pcm)

2020-06-15 Thread Shuah Khan
On 6/15/20 1:57 PM, Takashi Iwai wrote: On Mon, 15 Jun 2020 20:48:11 +0200, Shuah Khan wrote: I am seeing the following problem on my system. I haven't started debug yet. Is this a known issue? Yes, the recent fix by David should paper over it:

Re: Linux 5.8-rc1 BUG unable to handle page fault (snd_pcm)

2020-06-15 Thread Shuah Khan
On 6/15/20 1:48 PM, Linus Torvalds wrote: On Mon, Jun 15, 2020 at 11:48 AM Shuah Khan wrote: I am seeing the following problem on my system. I haven't started debug yet. Is this a known issue? [9.791309] BUG: unable to handle page fault for address: b1e78165d000 [9.791328] #PF:

Re: Linux 5.8-rc1 BUG unable to handle page fault (snd_pcm)

2020-06-15 Thread Takashi Iwai
On Mon, 15 Jun 2020 20:48:11 +0200, Shuah Khan wrote: > > I am seeing the following problem on my system. I haven't started debug > yet. Is this a known issue? Yes, the recent fix by David should paper over it:

Re: Linux 5.8-rc1 BUG unable to handle page fault (snd_pcm)

2020-06-15 Thread Linus Torvalds
On Mon, Jun 15, 2020 at 11:48 AM Shuah Khan wrote: > > I am seeing the following problem on my system. I haven't started debug > yet. Is this a known issue? > > [9.791309] BUG: unable to handle page fault for address: > b1e78165d000 > [9.791328] #PF: supervisor write access in kernel

Re: Linux 5.8-rc1 BUG unable to handle page fault (snd_pcm)

2020-06-15 Thread David Rientjes
On Mon, 15 Jun 2020, Shuah Khan wrote: > I am seeing the following problem on my system. I haven't started debug > yet. Is this a known issue? > > [9.791309] BUG: unable to handle page fault for address: b1e78165d000 > [9.791328] #PF: supervisor write access in kernel mode > [

Linux 5.8-rc1 BUG unable to handle page fault (snd_pcm)

2020-06-15 Thread Shuah Khan
I am seeing the following problem on my system. I haven't started debug yet. Is this a known issue? [9.791309] BUG: unable to handle page fault for address: b1e78165d000 [9.791328] #PF: supervisor write access in kernel mode [9.791330] #PF: error_code(0x000b) - reserved bit