Argh, it's always something. That looks like you hit the BUG_ON(!req->nr_phys_segments). I thought I fixed that. Are you running the latest code? There should be a commit that says "bcache: Always initialize bi_max_vecs". On Sat, Dec 17, 2011 at 5:00 AM, David Rhodes Clymer <david@xxxxxxxxxxxxxx> wrote: > On Fri, Dec 16, 2011 at 1:56 PM, Kent Overstreet > <kent.overstreet@xxxxxxxxx> wrote: >> On Fri, Dec 16, 2011 at 9:41 AM, David Rhodes Clymer >> <david@xxxxxxxxxxxxxx> wrote: >>> Is there any reason bcache would not work with LVM in particular, or >>> did I do something else that was silly? >> >> Certainly ought to work, but I'm not sure what the last time I tested >> it was. I'll see if I can reproduce it. > > Well, just for kicks, I setup bcache with a regular disk as the > backing device. Everything seemed to go ok...I was able to create an > ext4 filesystem on it and mount it. I remembered I had forgotten to > attach the cache, so I attached the cache, and tried copying an ISO to > the mounted fs, and it immediately crashed. > > I was doing this remotely, and now I can't get to the box. So I'm not > certain this is the full traceback, but it's what I got before I lost > connection: > > kernel:[50655.044130] ------------[ cut here ]------------ > Message from syslogd@zapazoid at Dec 17 07:39:06 ... > kernel:[50655.048019] invalid opcode: 0000 [#1] SMP > Message from syslogd@zapazoid at Dec 17 07:39:06 ... > kernel:[50655.048019] Process kworker/5:0 (pid: 5699, ti=c78c2000 > task=f27db5f0 task.ti=c78c2000) > Message from syslogd@zapazoid at Dec 17 07:39:06 ... > kernel:[50655.048019] Stack: > Message from syslogd@zapazoid at Dec 17 07:39:06 ... > kernel:[50655.048019] Call Trace: > Message from syslogd@zapazoid at Dec 17 07:39:06 ... > kernel:[50655.048019] Code: 8b 87 88 03 00 00 85 c0 74 17 8b 00 85 c0 > 74 11 8b 48 28 85 c9 74 0a 89 f2 89 f8 ff d1 85 c0 75 6b 66 83 be 84 > 00 00 00 00 75 04 <0f> 0b eb fe 8b 9e 90 00 00 00 85 db 75 1d ba 20 00 > 00 00 89 f8 > Message from syslogd@zapazoid at Dec 17 07:39:06 ... > kernel:[50655.048019] EIP: [<f8c759de>] scsi_setup_fs_cmnd+0x3f/0xa4 > [scsi_mod] SS:ESP 0068:c78c3ed0 > > > This box has a Phenom II X6 (1035T??). I'm not exactly certain of the > model number. > > -davidc -- 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
