On Wed, Jul 29, 2015 at 3:36 PM, Георгий Стариков <gstarikov@xxxxxxxxx> wrote: > there is no messages in dmesg in case of mount attempt. > after reboot dmesg contain many messages like this one: I just tried to boot old bcache device with bcachefs kernel and it locked too. If you just want to have a try bcachefs, you can do below to disable register the old bcache device. root@bee:/lib/udev/rules.d# ls *bcache* 69-bcache.rules root@bee:/lib/udev/rules.d# mv 69-bcache.rules 69-bcache.rules.bak root@bee:/lib/udev/rules.d# ls *bcache* 69-bcache.rules.bak > [Пт. июля 17 13:11:50 2015] INFO: task bcache-register:340 blocked for > more than 120 seconds. > [Пт. июля 17 13:11:50 2015] Tainted: G E 4.1.0+ #1 > [Пт. июля 17 13:11:50 2015] "echo 0 > > /proc/sys/kernel/hung_task_timeout_secs" disables this message. > [Пт. июля 17 13:11:50 2015] bcache-register D ffff88005fa0fbf8 0 > 340 1 0x00000004 > [Пт. июля 17 13:11:50 2015] ffff88005fa0fbf8 ffffffff81c14580 > ffff88002d961420 ffff88005fa0fc28 > [Пт. июля 17 13:11:50 2015] ffff88005fa10000 ffffffffc02536a4 > ffff88002d961420 00000000ffffffff > [Пт. июля 17 13:11:50 2015] ffffffffc02536a8 ffff88005fa0fc18 > ffffffff817d9367 ffff88006d260010 > [Пт. июля 17 13:11:50 2015] Call Trace: > [Пт. июля 17 13:11:50 2015] [<ffffffff817d9367>] schedule+0x37/0x90 > [Пт. июля 17 13:11:50 2015] [<ffffffff817d96fe>] > schedule_preempt_disabled+0xe/0x10 > [Пт. июля 17 13:11:50 2015] [<ffffffff817db4f5>] > __mutex_lock_slowpath+0x95/0x110 > [Пт. июля 17 13:11:50 2015] [<ffffffff817d5487>] ? printk+0x46/0x48 > [Пт. июля 17 13:11:50 2015] [<ffffffff817db593>] mutex_lock+0x23/0x40 > [Пт. июля 17 13:11:50 2015] [<ffffffffc01f70bc>] > bch_backing_dev_register+0x3ac/0x430 [bcache] > [Пт. июля 17 13:11:50 2015] [<ffffffffc022d0e5>] > bch_register_one+0xf5/0x310 [bcache] > [Пт. июля 17 13:11:50 2015] [<ffffffffc022d362>] > register_bcache+0x62/0xd0 [bcache] > [Пт. июля 17 13:11:50 2015] [<ffffffff81278c57>] kernfs_fop_write+0x127/0x180 > [Пт. июля 17 13:11:50 2015] [<ffffffff811fc6f8>] __vfs_write+0x28/0xf0 > [Пт. июля 17 13:11:50 2015] [<ffffffff811ff3ac>] ? __sb_start_write+0x4c/0x100 > [Пт. июля 17 13:11:50 2015] [<ffffffff81322343>] ? > security_file_permission+0x23/0xa0 > [Пт. июля 17 13:11:50 2015] [<ffffffff811fce29>] vfs_write+0xa9/0x1b0 > [Пт. июля 17 13:11:50 2015] [<ffffffff811fdbf6>] SyS_write+0x46/0xb0 > [Пт. июля 17 13:11:50 2015] [<ffffffff81066f3f>] ? do_page_fault+0x2f/0x80 > [Пт. июля 17 13:11:50 2015] [<ffffffff817dd932>] system_call_fastpath+0x16/0x75 > > > root@bcache:~# ps -ax | grep mount > 999 ? D 0:00 mount /dev/sdb /test_bcachefs/ > 1731 ? S 0:00 strace -v mount /dev/sdd /test_bcachefs > 1734 ? D 0:00 mount /dev/sdd /test_bcachefs > 1746 ? S 0:00 strace -v -o bcache_mount_strace.txt mount > /dev/sdd /test_bcachefs > 1749 ? D 0:00 mount /dev/sdd /test_bcachefs > 2062 ? D 0:00 mount -t bcache /dev/sdd /test_bcachefs > 2197 pts/3 D+ 0:00 mount /dev/sdd /test_bcachefs > > root@bcache:~# cat /proc/999/stack > [<ffffffffc0229f01>] read_super+0x2d1/0x420 [bcache] > [<ffffffffc022ce24>] bch_register_cache_set+0x104/0x2d0 [bcache] > [<ffffffffc02146b3>] bch_mount+0x123/0x330 [bcache] > [<ffffffff81200c78>] mount_fs+0x38/0x190 > [<ffffffff8121d65b>] vfs_kern_mount+0x6b/0x120 > [<ffffffff81220654>] do_mount+0x204/0xb60 > [<ffffffff812212cb>] SyS_mount+0x8b/0xd0 > [<ffffffff817dd932>] system_call_fastpath+0x16/0x75 > [<ffffffffffffffff>] 0xffffffffffffffff > > > root@bcache:~# cat /proc/2197/stack > [<ffffffffc0229f01>] read_super+0x2d1/0x420 [bcache] > [<ffffffffc022ce24>] bch_register_cache_set+0x104/0x2d0 [bcache] > [<ffffffffc02146b3>] bch_mount+0x123/0x330 [bcache] > [<ffffffff81200c78>] mount_fs+0x38/0x190 > [<ffffffff8121d65b>] vfs_kern_mount+0x6b/0x120 > [<ffffffff81220654>] do_mount+0x204/0xb60 > [<ffffffff812212cb>] SyS_mount+0x8b/0xd0 > [<ffffffff817dd932>] system_call_fastpath+0x16/0x75 > [<ffffffffffffffff>] 0xffffffffffffffff > > 2015-07-29 23:16 GMT+03:00 Ming Lin <mlin@xxxxxxxxxx>: >> On Wed, Jul 29, 2015 at 10:36 AM, Георгий Стариков <gstarikov@xxxxxxxxx> wrote: >>> Hello, >>> I followed instruction at http://bcache.evilpiepirate.org/ and it cant mount... >>> What I'm doing wrong? >>> >>> >>> I make: >>> >>> git clone -b bcache-dev http://evilpiepirate.org/git/linux-bcache.git >>> git clone -b dev http://evilpiepirate.org/git/bcache-tools.git >>> >>> cd bcache-tools/linux-bcache/ >>> make oldconfig >>> make -j6 deb-pkg >>> make -j6 modules_install >>> make -j6 install >>> reboot >>> >>> wipefs -a /dev/sdd >>> >>> Then, just run >>> >>> bcacheadm format -C /dev/sdd >>> strace -v -o bcache_mount_strace.txt mount /dev/sdd /test_bcachefs >>> >>> and it hangup.... >> >> Any message in dmesg? >> >> Could you do: >> >> cat /proc/`pidof mount`/stack >> >>> >>> root@bcache:~# tail bcache_mount_strace.txt >>> geteuid() = 0 >>> getgid() = 0 >>> getegid() = 0 >>> prctl(PR_GET_DUMPABLE) = 1 >>> stat("/run", {st_dev=makedev(0, 18), st_ino=2625, >>> st_mode=S_IFDIR|0755, st_nlink=23, st_uid=0, st_gid=0, >>> st_blksize=4096, st_blocks=0, st_size=740, >>> st_atime=2015/07/17-13:07:47, st_mtime=2015/07/29-14:20:25, >>> st_ctime=2015/07/29-14:20:25}) = 0 >>> lstat("/etc/mtab", {st_dev=makedev(8, 1), st_ino=131233, >>> st_mode=S_IFLNK|0777, st_nlink=1, st_uid=0, st_gid=0, st_blksize=4096, >>> st_blocks=0, st_size=12, st_atime=2015/07/29-06:40:34, >>> st_mtime=2015/07/12-10:40:12, st_ctime=2015/07/12-10:40:12}) = 0 >>> lstat("/run/mount/utab", {st_dev=makedev(0, 18), st_ino=1968, >>> st_mode=S_IFREG|0644, st_nlink=1, st_uid=0, st_gid=0, st_blksize=4096, >>> st_blocks=0, st_size=0, st_atime=2015/07/17-13:10:49, >>> st_mtime=2015/07/17-13:10:49, st_ctime=2015/07/17-13:10:49}) = 0 >>> open("/run/mount/utab", O_RDWR|O_CREAT|O_CLOEXEC, 0644) = 3 >>> close(3) = 0 >>> mount("/dev/sdd", "/test_bcachefs", "bcache", MS_MGC_VAL, NULL -- 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
