Messages in this thread | | | Date | Tue, 27 Jul 1999 23:52:00 +0200 (CEST) | From | Ingo Molnar <> | Subject | Re: Bug in ll_rw_blk.c in 2.3.10/11 |
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On Tue, 27 Jul 1999, Jan Kara wrote:
> I think I've found a bug in make_request() in ll_rw_blk.c in 2.3.10 or > 11. The problem is that when access beyond the end of device is done, > all flags except BH_Locked are cleared. This also means clearing of flag > BH_Mapped so when you try to read the block second time, ll_rw_block() > complains about not mapped buffer and does BUG()... My fix simply > preserves the BH_mapped flag too but I'm not sure this is the right fix. > If it is, the patch is attached.
yes, this is the correct fix. We should not crash if we detect nonfatal beyond-limit IO access.
-- mingo
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