From: Tang Junhui <tang.junhui@xxxxxxxxxx> Hello, Mike > My repro script is: > > --- > #!/bin/sh > > rm imgfile > dd if=/dev/sda3 of=imgfile bs=1024 count=262144 > dd if=/dev/zero of=imgfile bs=512 seek=510638080 count=1 > losetup -f imgfile > --- > > Where 510638080 is the size of the device. > > dmesg output isn't perfect: > > [ 65.919927] bcache: register_cache() error opening loop0: duplicate > cache set member > [ 65.919929] bcache: register_bcache() error opening /dev/loop0: (null) > > But at least no crash :D > > Would you like to slightly improve output and write a commit message? > If not I can do it. This should cc: stable. > Thanks for your test. I also tested it before I send the patch. I will fix this dmesg out and send a formal patch later. > I found a related (worse) problem with duplicate backing device-- sysfs > complains but it actually attaches with the same UUID / has incorrect > behavior. I will work on fixing that in the next few days for another > submission to Jens, together with your fix. Thanks for working on it. I am looking forward to your patch. Thanks Tang Junhui -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
