As there are currently so many reports of reiserfs hanging, I have one to add myself. I have updated from 2.6.38.5 to 3.2.19 two weeks ago and have never observed something like this in the past two years on this computer. I think it started with Firefox hanging: firefox S 0000000000000002 0 18983 340 0x00000000 ffff88007469d8d0 0000000000000082 0000000000000246 ffff8800745e0cd0 0000000000010640 ffff88007180dfd8 0000000000004000 ffff88007180c000 ffff88007180dfd8 0000000000010640 ffff88007469d8d0 0000000000010640 Call Trace: [<ffffffff810f20f1>] ? __find_get_block+0x71/0x1d0 [<ffffffff810549d1>] ? bit_waitqueue+0x11/0xb0 [<ffffffff81054ab9>] ? wake_up_bit+0x19/0x40 [<ffffffffa00e997b>] ? search_by_key+0xe2b/0xed0 [reiserfs] [<ffffffff81033249>] ? load_balance+0xa9/0x7f0 [<ffffffff81326eed>] ? schedule_hrtimeout_range_clock+0x12d/0x150 [<ffffffff81034863>] ? try_to_wake_up+0xc3/0x260 [<ffffffff8102aed0>] ? __wake_up_common+0x50/0x80 [<ffffffffa00e9a63>] ? search_for_position_by_key+0x43/0x270 [reiserfs] [<ffffffff810da540>] ? poll_freewait+0xb0/0xb0 [<ffffffff810ddfbf>] ? dput+0x1f/0x190 [<ffffffffa00f4ba0>] ? open_xa_dir+0xa0/0x230 [reiserfs] [<ffffffffa00eb0b4>] ? reiserfs_do_truncate+0xe4/0x530 [reiserfs] [<ffffffffa00f617e>] ? reiserfs_write_lock+0x2e/0x50 [reiserfs] [<ffffffffa00f5158>] ? reiserfs_for_each_xattr+0x2e8/0x2f0 [reiserfs] [<ffffffffa00eb528>] ? reiserfs_delete_object+0x28/0x80 [reiserfs] [<ffffffffa00d713b>] ? reiserfs_evict_inode+0xeb/0x120 [reiserfs] [<ffffffff811873db>] ? _atomic_dec_and_lock+0x4b/0x70 [<ffffffff810e0c59>] ? evict+0x99/0x180 [<ffffffff810dd930>] ? d_kill+0xf0/0x130 [<ffffffff810de06a>] ? dput+0xca/0x190 [<ffffffff810d30cd>] ? path_put+0xd/0x20 [<ffffffff810feda9>] ? fsnotify_put_event+0x59/0x60 [<ffffffff8110129a>] ? inotify_read+0x29a/0x2f0 [<ffffffff81054ae0>] ? wake_up_bit+0x40/0x40 [<ffffffff810d9856>] ? do_vfs_ioctl+0x96/0x4e0 [<ffffffff810c92c3>] ? vfs_read+0xc3/0x160 [<ffffffff810c93af>] ? sys_read+0x4f/0x90 [<ffffffff81327faf>] ? page_fault+0x1f/0x30 [<ffffffff813283bb>] ? system_call_fastpath+0x16/0x1b Actually this is the second time firefox hung, but I killed it the first time and successfully wrote some files to the partition afterwards. This process is not listed with SysRq-w. Only the ls that made me suspicious and sync_supers: SysRq : Show Blocked State task PC stack pid father sync_supers D 0000000000000000 0 18 2 0x00000000 ffff880075501290 0000000000000046 0000000000000000 ffffffff81435020 0000000000010640 ffff880075545fd8 0000000000004000 ffff880075544000 ffff880075545fd8 0000000000010640 ffff880075501290 0000000000010640 Call Trace: [<ffffffff81033249>] ? load_balance+0xa9/0x7f0 [<ffffffff81054b10>] ? autoremove_wake_function+0x30/0x30 [<ffffffff8109beaa>] ? account_page_dirtied+0x7a/0xc0 [<ffffffffa00ec972>] ? queue_log_writer+0x92/0xe0 [reiserfs] [<ffffffff81034a00>] ? try_to_wake_up+0x260/0x260 [<ffffffffa00f1441>] ? do_journal_end.clone.31+0x1b1/0xea0 [reiserfs] [<ffffffff810a8a80>] ? bdi_sched_wait+0x20/0x20 [<ffffffffa00e0120>] ? reiserfs_sync_fs+0x60/0x70 [reiserfs] [<ffffffff810cc0ca>] ? sync_supers+0xda/0xe0 [<ffffffff810a8ac5>] ? bdi_sync_supers+0x45/0x60 [<ffffffff810a8a80>] ? bdi_sched_wait+0x20/0x20 [<ffffffff81054666>] ? kthread+0x96/0xa0 [<ffffffff81329574>] ? kernel_thread_helper+0x4/0x10 [<ffffffff810545d0>] ? kthread_worker_fn+0x180/0x180 [<ffffffff81329570>] ? gs_change+0xb/0xb ls D 0000000000000000 0 19436 18303 0x00000004 ffff88007458f810 0000000000000082 000280da00000000 ffffffff81435020 0000000000010640 ffff88007431dfd8 0000000000004000 ffff88007431c000 ffff88007431dfd8 0000000000010640 ffff88007458f810 0000000000010640 Call Trace: [<ffffffff81327faf>] ? page_fault+0x1f/0x30 [<ffffffff81190cd6>] ? copy_user_generic_unrolled+0x86/0xb0 [<ffffffffa00ec972>] ? queue_log_writer+0x92/0xe0 [reiserfs] [<ffffffff81034a00>] ? try_to_wake_up+0x260/0x260 [<ffffffffa00f2357>] ? do_journal_begin_r+0x227/0x350 [reiserfs] [<ffffffffa00f2510>] ? journal_begin+0x90/0x170 [reiserfs] [<ffffffffa00e018a>] ? reiserfs_dirty_inode+0x3a/0xb0 [reiserfs] [<ffffffff81023db9>] ? do_page_fault+0x199/0x420 [<ffffffff810ebb47>] ? __mark_inode_dirty+0x37/0x220 [<ffffffff810e028d>] ? touch_atime+0x11d/0x170 [<ffffffff810da03f>] ? vfs_readdir+0xbf/0xd0 [<ffffffff810da132>] ? sys_getdents+0x82/0xf0 [<ffffffff813283bb>] ? system_call_fastpath+0x16/0x1b When I managed to make four more processes hang, I did a lazy umount and restarted the system. Daniel -- To unsubscribe from this list: send the line "unsubscribe reiserfs-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
