Messages in this thread | | | Subject | Re: Make sure we populate the initroot filesystem late enough | From | David Woodhouse <> | Date | Sun, 25 Feb 2007 19:00:57 -0500 |
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On Mon, 2006-12-11 at 20:59 +0000, Linux Kernel Mailing List wrote: > Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8d610dd52dd1da696e199e4b4545f33a2a5de5c6 > Commit: 8d610dd52dd1da696e199e4b4545f33a2a5de5c6 > Parent: 8993780a6e44fb4e7ed34e33458506a775356c6e > Author: Linus Torvalds <torvalds@woody.osdl.org> > AuthorDate: Mon Dec 11 12:12:04 2006 -0800 > Committer: Linus Torvalds <torvalds@woody.osdl.org> > CommitDate: Mon Dec 11 12:12:04 2006 -0800 > > Make sure we populate the initroot filesystem late enough > > We should not initialize rootfs before all the core initializers have > run. So do it as a separate stage just before starting the regular > driver initializers. > > Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This seems to be what's triggering the apparent memory corruption we've been seeing recently -- in the case of the Fedora kernel it manifests itself as a BUG() in cache_alloc_refill() when the pmac ide driver initialises.
Another report was at http://lkml.org/lkml/2006/12/17/4
We've been seeing it on a Mac Mini too, and I managed to reproduce it on my shinybook this evening by booting with 'mem=512M'.
One side-effect of this patch is to move the call to free_initrd() much later in the init sequence, potentially after other memory management code is assuming it's already been freed.
-- dwmw2
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