Messages in this thread | | | Date | Mon, 16 Jul 2012 17:53:18 -0400 | From | Dave Jones <> | Subject | Re: 3.5-rc6 dentry related GPF |
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On Mon, Jul 16, 2012 at 10:32:18PM +0100, Al Viro wrote: > On Wed, Jul 11, 2012 at 12:10:12PM -0700, Linus Torvalds wrote: > > rdi = 54415541e5894855 > > > > which looks like some odd corrupted ASCII to me ("UH\211\345AUAT") but > > that makes no sense either. > > It makes a lot of sense as amd64 code, though: > > 55 push %rbp > 48 89 e5 mov %rsp,%rbp > 41 55 push %r13 > 41 54 push %r12 > > IOW, it's the first 8 bytes from a fairly sane beginning of some function. > So &(inode->i_fop->owner) (and thus inode->i_fop - owner is the first field) > is some spot in .text. Would be interesting to find out what function > was that from (i.e. what's the value of inode->i_fop); with any luck it > might've still been in some register. Could you post objdump of > do_dentry_open() from your kernel?
I've done a few rebuilds since posting that, but hopefully things haven't moved around too much in that area recently..
http://fpaste.org/Pw5d/ is the whole open.o disassembly.
Dave
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