https://bugzilla.novell.com/show_bug.cgi?id=807850
https://bugzilla.novell.com/show_bug.cgi?id=807850#c1
Michal Hocko changed:
What |Removed |Added
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CC| |mhocko@suse.com
--- Comment #1 from Michal Hocko 2013-03-15 10:02:02 CET ---
ffffffff811a18ae: 48 8d a8 00 ff ff ff lea -0x100(%rax),%rbp
ffffffff811a18b5: 74 69 je ffffffff811a1920
ffffffff811a18b7: 48 8d 9d 88 00 00 00 lea 0x88(%rbp),%rbx
ffffffff811a18be: 48 89 df mov %rbx,%rdi
ffffffff811a18c1: e8 ea d6 3c 00 callq ffffffff8156efb0
<_raw_spin_lock>
ffffffff811a18c6: f6 85 a0 00 00 00 38 testb $0x38,0xa0(%rbp)
ffffffff811a18cd: 75 d1 jne ffffffff811a18a0
ffffffff811a18cf: 48 8b 45 30 mov 0x30(%rbp),%rax
ffffffff811a18d3: 48 83 78 58 00 cmpq $0x0,0x58(%rax) <<<
TRAPING INSTRUCTION
ffffffff811a18d8: 74 c6 je ffffffff811a18a0
which maps to nrpages==0 test:
spin_lock(&inode->i_lock);
if ((inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW)) ||
(inode->i_mapping->nrpages == 0)) {
spin_unlock(&inode->i_lock);
continue;
}
But inode->mapping is apparently NULL which is unexpected. It would be
interesting to know about the respective inode. Which filesystem it comes from?
Btw. the taint flags say that a staging tree driver is loaded. It looks like
rts_pstore. I have no idea what the driver does except it offers PCIe reader
functionality. Just out of curiosity. Do you see the same issue if the driver
is not used?
Anyway, it would be nice if you could setup kdump and grab kernel crashdump so
that we can find out details about the inode.
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