From: Borislav Petkov <bp@xxxxxxxxx> Date: Fri, 30 Sep 2011 08:45:32 +0200 > Simon Kirby reported that on his RAID setup with idedisk underneath > the box OOMs after a couple of days of runtime. Running with > CONFIG_DEBUG_KMEMLEAK pointed to idedisk_prep_fn() which unconditionally > allocates an ide_cmd struct. However, ide_requeue_and_plug() can be > called more than once per request, either from the request issue or the > IRQ handler path and do blk_peek_request() ends up in idedisk_prep_fn() > repeatedly, allocating a struct ide_cmd everytime and "forgetting" the > previous pointer. > > Make sure the code reuses the old allocated chunk. > > Reported-and-tested-by: Simon Kirby <sim@xxxxxxxxxx> > Cc: <stable@xxxxxxxxxx> [ 39.x, 3.0.x ] > Link: http://marc.info/?l=linux-kernel&m=131667641517919 > Link: http://lkml.kernel.org/r/20110922072643.GA27232@xxxxxxxxxx > Signed-off-by: Borislav Petkov <bp@xxxxxxxxx> Applied, thanks a lot. -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
