[Bug 224292] processes are hanging in state ufs / possible deadlock in file system

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=224292

Wolfram Schneider <wosch at FreeBSD.org> changed:

           What    |Removed                     |Added
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             Status|New                         |In Progress

--- Comment #3 from Wolfram Schneider <wosch at FreeBSD.org> ---
Hi Kirk,

thanks for the fast response. I can run the tests again and see if the machine
survives the next 3 days.

I'm wondering if we have a simple test program to trigger this bug? 

Any suggestion to tune dirhash, to get the the broken lock faster?

my current setup:
sysctl  -a|egrep vfs.ufs.dirhash
vfs.ufs.dirhash_reclaimpercent: 10
vfs.ufs.dirhash_lowmemcount: 188
vfs.ufs.dirhash_docheck: 0
vfs.ufs.dirhash_mem: 510163
vfs.ufs.dirhash_maxmem: 2097152
vfs.ufs.dirhash_minsize: 2560

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