Messages in this thread | | | Date | Sun, 20 Feb 2011 01:15:52 -0500 | From | Ted Ts'o <> | Subject | Re: ext4 crash on 2.6.37: NULL ptr in ext4_discard_preallocations |
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On Sun, Feb 20, 2011 at 12:05:27AM -0500, Mark Lord wrote: > I suppose it must be, as there's no other 0x3c offset in that function. > Which means it's probably this line that's crashing: > > BUG_ON(pa->pa_obj_lock != &ei->i_prealloc_lock); > > ...which could only happen if "pa" was NULL there. > I wonder how that happened ?
Which could only happen if ei->i_prealloc_list were not properly initialized (i..e, it was still NULL). Which shouldn't ever happen...., since all ext4_inodes are initialized in ext4_alloc_inode().
Hmm, can you replicate the crash?
- Ted
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