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invalidate: busy buffer message on boot w/ 2.4.13

linux-lvm Mark 2 participants 2 messages Oct 26, 2001 – Oct 27, 2001

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Mark

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greetings all.

built and installed a 2.4.13 kernel and optioned on LVM support and i get this message about ten times when

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  Mark Garey                            Tel:     (415) 243-4055 x1023
  Transvirtual Technologies, Inc.,      Fax:     (415) 243-4056
  San Francisco, CA. USA                Email:   [email protected]
  GPGfoo = OHMY GODC COMP UTER SHAV ETAK ENOV ERMY LIFE
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On Oct 26, 2001 16:13 -0700, Mark wrote:
[re: invalidate busy buffer]

Quoted 2 lines

built and installed a 2.4.13 kernel and optioned on LVM support and i get this message about ten times when I boot

That's because LVM is overzealous about running invalidate_buffers() when running vgscan (it shouldn't do that). It was never able to invalidate busy buffers, but now there is a warning when it tries to do so. I would submit a patch to remove the invalidate_buffers() call from PV_FLUSH, but since the -ac kernel still has block devices in buffer cache, there is the _possibility_ of a disconnect between user space and kernel space w.r.t. snapshot data (which is written from kernel space).

Cheers, Andreas
--
Andreas Dilger \ "If a man ate a pound of pasta and a pound of antipasto,
\ would they cancel out, leaving him still hungry?"
http://www-mddsp.enel.ucalgary.ca/People/adilger/ -- Dogbert