tmpfs deadlock on stable/9

[Kostik Belousov]

On Wed, Dec 07, 2011 at 01:57:08PM +0400, Dmitry Morozovsky wrote:
> Dear colleagues,
> 
> I have ports tinderbox runnign on stable/9-amd64, with working directories on 
> tmpfs. I have two consecutive tmpfs deadlocks like
> 
> root at beaver:/usr/local/tb/scripts# ps t2
>   PID  TT  STAT    TIME COMMAND
>  2337   2  Is   0:00.04 /bin/tcsh  
>  3079   2  I    0:00.01 sudo -sE   
>  3260   2  I    0:00.02 /bin/tcsh  
> 20309   2  I+   0:00.06 /bin/sh ./tc tinderbuild -nullfs -norebuild -b 
> 9-i386-RiNet
> 27035   2  S+   0:00.13 make PACKAGES=/usr/local/tb/packages/9-i386-RiNet -k 
> -j1 all
> 46470   2  I+   0:00.00 sh -ev
> 46471   2  I+   0:00.01 /bin/sh /usr/local/tb/scripts/lib/portbuild 
> 9-i386-RiNet 9-i386 RiNet -nullfs gsm-1.0.13.tbz /usr/ports/audio/gsm
> 46677   2  I+   0:00.00 /bin/sh /buildscript /usr/ports/audio/gsm 2
> 46766   2  I+   0:00.00 /pnohang 7200 /tmp/make.log4 gsm-1.0.13 make build
> 46767   2  I+   0:00.02 make build
> 46768   2  I+   0:00.00 /pnohang 7200 /tmp/make.log4 gsm-1.0.13 make build
> 46789   2  I+   0:00.00 [sh]
> 46790   2  D+   0:00.01 make -f Makefile -j4 all
> 46918   2  I+   0:00.00 sh -ev
> 46926   2  I+   0:00.00 sh -ev
> 46928   2  Z+   0:00.09 <defunct>
> 46938   2  D+   0:00.00 mv gsm_create.o ./src/gsm_create.o
> 46940   2  D+   0:00.00 mv gsm_print.o ./src/gsm_print.o
> 
> (this is parallel build, last 2 rm's are deadlocked on tmpfs) 
> 
> what kind of additional info should I send? I have debugging turned on in 
> kernel, if it's needed.
http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug-deadlocks.html

No, I do not promise to look into it.
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