DragonFly bugs List (threaded) for 2005-08
Re: find stuck in state "clock"
Matthew Dillon wrote:
:while looking around on chlamydia why it is so slow I found a dozen
:find(1)s stuck in state "clock", and all periodic scripts etc dangling
:on that. Dmesg tells me:
:Aug 28 03:01:04 chlamydia kernel: [diagnostic] cache_lock: blocked on
:the system is
:DragonFly chlamydia.fs.ei.tum.de 1.2.2-RELEASE DragonFly 1.2.2-RELEASE
:#3: Tue Jun 21 23:57:56 CEST 2005
:Has this been fixed since?
I believe it was fixed. I'm not entirely sure if it was MFC'd but
I think it was.
I couldn't find a commit that I can relate to a fix for that problem,
neither in -release nor in -devel.
Ok, I tried to play a bit Sherlock Holmes (on the live system).
find blocks in cache_lock() on "/dev/ttyp5"
This entry is locked by sshd in state vnode, waiting for an exclusive
lock on a vnode which is being locked by tcsh, which is in state ttywai.
Guess on which tty: ttyp5. Seems like a deadlock situation.
Is there something I can look at? I could try to get a dump tomorrow,
but I'd rather not, I should be busy at the moment.
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