Messages in this thread | | | Date | Sun, 5 Jul 2009 17:05:47 +0200 | From | Krzysztof Helt <> | Subject | Re: [BUG] drivers/video/sis: deadlock introduced by "fbdev: add mutex for fb_mmap locking" |
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On Sun, 5 Jul 2009 07:19:33 -0700 (PDT) Linus Torvalds <torvalds@linux-foundation.org> wrote:
> > > On Sun, 5 Jul 2009, Wu Zhangjin wrote: > > > > then it works! so, I guess there is a deadlock introduced by the above > > commit. > > Hmm. Perhaps more likely, the 'mm_lock' mutex hasn't even been initialized > yet. We appear to have had that problem with matroxfb and sm501fb, and it > may be more common than that. See commit f50bf2b2. > > That said, I do agree that the mm_lock seems to be causing more problems > than it actually fixes, and maybe we should revert it. Krzysztof? >
I vote for fixing these drivers after my change. I will send a patch for the sis driver soon. I am building new kernel now.
Regards, Krzysztof
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