Re: nvidia drivers mutex lock

Hi.
Version 381.22 (5 days newer than 375.66) of the driver states... [1]

 Fixed hangs and crashes that could occur when an OpenGL context is
 created while the system is out of available memory.

Can this be related with your hang?

IMHO, possibly allocating new resource (using os.lock_mtx guard)
without checking the lock first while previous request is waiting for
another can cause the duplicated lock situation. And high memory
pressure would easily cause the situation.

 [1] http://www.nvidia.com/Download/driverResults.aspx/118527/en-us

Hope it helps.


On Thu, 1 Jun 2017 22:35:46 +0000 (UTC)
Jeffrey Bouquet <jeffreybouquet_at_yahoo.com> wrote:

> I see the same message, upon load, ...
> --------------------------------------------
> On Thu, 6/1/17, blubee blubeeme <gurenchan_at_gmail.com> wrote:
> 
>  Subject: nvidia drivers mutex lock
>  To: freebsd-ports_at_freebsd.org, freebsd-current_at_freebsd.org
>  Date: Thursday, June 1, 2017, 11:35 AM
>  
>  I'm running nvidia-drivers 375.66 with a GTX
>  1070 on FreeBSD-Current
>  
>  This problem just started happening
>  recently but, every so often my laptop
>  screen will just blank out and then I
>  have to power cycle to get the
>  machine up and running again.
>  
>  It seems to be a problem with nvidia
>  drivers acquiring duplicate lock. Any
>  info on this?
>  
>  Jun$B".(B 2 02:29:41 blubee kernel:
>  acquiring duplicate lock of same type:
>  "os.lock_mtx"
>  Jun$B".(B 2 02:29:41 blubee kernel: 1st
>  os.lock_mtx _at_ nvidia_os.c:841
>  Jun$B".(B 2 02:29:41 blubee kernel: 2nd
>  os.lock_mtx _at_ nvidia_os.c:841
>  Jun$B".(B 2 02:29:41 blubee kernel:
>  stack backtrace:
>  Jun$B".(B 2 02:29:41 blubee kernel: #0
>  0xffffffff80ab7770 at
>  witness_debugger+0x70
>  Jun$B".(B 2 02:29:41 blubee kernel: #1
>  0xffffffff80ab7663 at
>  witness_checkorder+0xe23
>  Jun$B".(B 2 02:29:41 blubee kernel: #2
>  0xffffffff80a35b93 at
>  __mtx_lock_flags+0x93
>  Jun$B".(B 2 02:29:41 blubee kernel: #3
>  0xffffffff82f4397b at
>  os_acquire_spinlock+0x1b
>  Jun$B".(B 2 02:29:41 blubee kernel: #4
>  0xffffffff82c48b15 at _nv012002rm+0x185
>  Jun$B".(B 2 02:29:41 blubee kernel:
>  ACPI Warning: \_SB.PCI0.PEG0.PEGP._DSM:
>  Argument #4 type mismatch - Found
>  [Buffer], ACPI requires [Package]
>  (20170303/nsarguments-205)
>  Jun$B".(B 2 02:29:42 blubee kernel:
>  nvidia-modeset: Allocated GPU:0
>  (GPU-54a7b304-c99d-efee-0117-0ce119063cd6) _at_
>  PCI:0000:01:00.0
>  
>  Best,
>  Owen
>  _______________________________________________
>  freebsd-ports_at_freebsd.org
>  mailing list
>  https://lists.freebsd.org/mailman/listinfo/freebsd-ports
>  To unsubscribe, send any mail to "freebsd-ports-unsubscribe_at_freebsd.org"
>  
> 
> 
> ... then Xorg will run happily twelve hours or so.  The lockups here happen usually
> when too large or too many of number of tabs/ large web pages with complex CSS etc
> are opened at a time.  
>     So no help, just a 'me too'.  
> _______________________________________________
> freebsd-current_at_freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-current
> To unsubscribe, send any mail to "freebsd-current-unsubscribe_at_freebsd.org"
> 
> 


-- 
Tomoaki AOKI    <junchoon_at_dec.sakura.ne.jp>