That I haven't seen before. I'll see if I can reproduce it. On Mon, May 7, 2012 at 1:27 PM, David Rhodes Clymer <david@xxxxxxxxxxxxxx> wrote: > When I modify my /etc/lvm.conf and add bcache as a allowed device type: > > types = [ "bcache", 16 ] > > bcache is definitely in /proc/devices: > > root@zapazoid:~# cat /proc/devices |grep bcache > 253 bcache > > Now, when I attempt a pvscan or pvcreate: > > [ 287.781024] bio: create slab <bio-1> at 1 > [ 287.824983] bcache: btree_journal_read() done > [ 287.833084] bcache: btree_check() done > [ 287.833087] bcache: journal replay done, 0 keys in 1 entries, seq 4-4 > [ 287.833144] bcache: registered cache device sdb1 > [ 427.970797] bcache: Caching sda2 as bcache0 on set > c6e304cc-e9d4-4d8d-85ae-d76e081e2bc3 > [ 446.637876] ------------[ cut here ]------------ > [ 446.638002] kernel BUG at fs/direct-io.c:647! > [ 446.638071] invalid opcode: 0000 [#1] SMP > [ 446.638207] Modules linked in: [last unloaded: scsi_wait_scan] > [ 446.638358] > [ 446.638424] Pid: 2292, comm: pvscan Not tainted 3.2.0+ #3 BIOSTAR > Group A780L3G/A780L3G > [ 446.638623] EIP: 0060:[<c1134d0f>] EFLAGS: 00010246 CPU: 5 > [ 446.638651] EIP is at dio_send_cur_page+0x48f/0x4b0 > [ 446.638651] EAX: 00000000 EBX: f42b6a00 ECX: 0000000c EDX: 00000000 > [ 446.638651] ESI: f48a1d30 EDI: 00000001 EBP: f48a1c84 ESP: f48a1c50 > [ 446.638651] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 > [ 446.638651] Process pvscan (pid: 2292, ti=f48a0000 task=f4a6eca0 > task.ti=f48a0000) > [ 446.638651] Stack: > [ 446.638651] 00000001 f42b6a40 f48a1c74 f48a1db8 f31c2080 f31c2000 > f48a1db8 074440e0 > [ 446.638651] 00000000 0000000c 440e0000 00000074 f48a1db8 f48a1dfc > c1135b47 f48a1db8 > [ 446.638651] 00000000 f4a6ef20 f48a1db8 f48a1d30 00033a80 f42b6a40 > 01a82d40 440e0000 > [ 446.638651] Call Trace: > > [ 446.638651] [<c1135b47>] __blockdev_direct_IO+0x7b7/0x1870 > [ 446.638651] [<c1132830>] ? block_llseek+0x100/0x100 > [ 446.638651] [<c11333d0>] blkdev_direct_IO+0x60/0x70 > [ 446.638651] [<c1132830>] ? block_llseek+0x100/0x100 > [ 446.638651] [<c10bf4d4>] generic_file_aio_read+0x6e4/0x750 > [ 446.638651] [<c1105654>] do_sync_read+0xa4/0xe0 > [ 446.638651] [<c11056f3>] ? rw_verify_area+0x63/0x110 > [ 446.638651] [<c16b4974>] ? mutex_lock+0x14/0x40 > [ 446.638651] [<c1105d67>] vfs_read+0x97/0x160 > [ 446.638651] [<c1292f54>] ? copy_to_user+0x34/0x120 > [ 446.638651] [<c11055b0>] ? do_sync_write+0xe0/0xe0 > [ 446.638651] [<c1105efd>] sys_read+0x3d/0x70 > [ 446.638651] [<c16b5b29>] syscall_call+0x7/0xb > [ 446.638651] Code: f2 89 d8 e8 74 f7 ff ff 85 ff 0f 44 f8 8b 43 30 > 85 c0 75 d0 8b 75 e0 85 ff c7 46 24 00 00 00 00 0f 85 b1 fd ff ff e9 > c3 fe ff ff <0f> 0b eb fe 0f 0b eb fe 89 d8 e8 02 2a f9 ff 84 c0 0f 85 > 7d fd > [ 446.638651] EIP: [<c1134d0f>] dio_send_cur_page+0x48f/0x4b0 SS:ESP > 0068:f48a1c50 > [ 446.643626] ---[ end trace 667269d0635b2635 ]--- > > > I'm running the latest version of bcache available, that I know of: > > root@zapazoid:/usr/src/linux-bcache# git log --format=short -n1 > commit f750663315afd8645badea86f4760092a137f990 > Author: Kent Overstreet <koverstreet@xxxxxxxxxx> > > closures: Export do_closure_timer_init() > > > This is with 32bit kernel/userland. > > -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 -- 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
