Hi, mounting the following image, creating a directory and unmounting it, produces an oops during unmount
http://www.cccmz.de/~snakebyte/jfs.72.img.bz2 r...@computer-desktop:~/testing# mount -o loop -t jfs cfs/jfs.72.img /media/test/ r...@computer-desktop:~/testing# mkdir /media/test/foo r...@computer-desktop:~/testing# umount /media/test I tried this again with JFS debugging enabled, but it did not make a difference. Kernel is vanilla -rc1 from -git (with the confusing -rc2 in the Makefile) [ 531.380269] BUG: unable to handle kernel paging request at 006f006f [ 531.380656] IP: [<c01b798c>] dispose_list+0x3c/0xf0 [ 531.380961] *pde = 00000000 [ 531.381154] Oops: 0002 [#1] DEBUG_PAGEALLOC [ 531.381483] last sysfs file: /sys/block/sda/size [ 531.381625] Modules linked in: jfs nfsd exportfs nfs lockd nfs_acl auth_rpcgss sunrpc ipv6 fuse unix [ 531.382881] [ 531.383065] Pid: 4192, comm: umount Not tainted (2.6.32-rc2 #24) [ 531.383224] EIP: 0060:[<c01b798c>] EFLAGS: 00010206 CPU: 0 [ 531.383380] EIP is at dispose_list+0x3c/0xf0 [ 531.383528] EAX: 006603ff EBX: c9c58db8 ECX: c54fa6e8 EDX: 006f006f [ 531.383744] ESI: c9c58dc0 EDI: cab96ef8 EBP: cab96ee4 ESP: cab96ed4 [ 531.383903] DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068 [ 531.384019] Process umount (pid: 4192, ti=cab96000 task=c54fa6e8 task.ti=cab96000) [ 531.384019] Stack: [ 531.384019] 00000000 c9c3cdb8 cab74cb4 c9fd4dc8 cab96f0c c01b7d5b cab74cb4 00000001 [ 531.384019] <0> 00000002 c9fd4dc0 c9fd4dc0 cab74bf0 d19033c0 d19059c0 cab96f24 c01a5f32 [ 531.384019] <0> d19059c0 cab96f34 c6948ce8 00000003 cab96f34 c01a5fe5 cab74bf0 c01e30f0 [ 531.384019] Call Trace: [ 531.384019] [<c01b7d5b>] ? invalidate_inodes+0xcb/0x130 [ 531.384019] [<c01a5f32>] ? generic_shutdown_super+0x42/0xd0 [ 531.384019] [<c01a5fe5>] ? kill_block_super+0x25/0x40 [ 531.384019] [<c01e30f0>] ? vfs_quota_off+0x0/0x20 [ 531.384019] [<c01a66ca>] ? deactivate_super+0x7a/0x90 [ 531.384019] [<c01bb37a>] ? mntput_no_expire+0x5a/0x90 [ 531.384019] [<c01bb66c>] ? sys_umount+0x4c/0x320 [ 531.384019] [<c01bb959>] ? sys_oldumount+0x19/0x20 [ 531.384019] [<c010305b>] ? sysenter_do_call+0x12/0x32 [ 531.384019] Code: 00 00 00 39 f0 75 77 e9 a3 00 00 00 8d 76 00 89 d8 e8 c9 fc ff ff b8 70 e0 90 c0 e8 8f ac 47 00 8b 53 04 85 d2 74 18 8b 03 85 c0 <89> 02 74 03 89 50 04 c7 03 00 00 00 00 c7 43 04 00 00 00 00 8b [ 531.384019] EIP: [<c01b798c>] dispose_list+0x3c/0xf0 SS:ESP 0068:cab96ed4 [ 531.384019] CR2: 00000000006f006f [ 531.395393] ---[ end trace 422e7957c361f27c ]--- [ 531.395534] ------------[ cut here ]------------ [ 531.395704] WARNING: at kernel/exit.c:897 do_exit+0x5f4/0x6b0() [ 531.395854] Modules linked in: jfs nfsd exportfs nfs lockd nfs_acl auth_rpcgss sunrpc ipv6 fuse unix [ 531.397027] Pid: 4192, comm: umount Tainted: G D 2.6.32-rc2 #24 [ 531.397195] Call Trace: [ 531.397348] [<c012c784>] ? do_exit+0x5f4/0x6b0 [ 531.397512] [<c0128e0c>] warn_slowpath_common+0x6c/0xc0 [ 531.397688] [<c012c784>] ? do_exit+0x5f4/0x6b0 [ 531.397840] [<c0128e75>] warn_slowpath_null+0x15/0x20 [ 531.398013] [<c012c784>] do_exit+0x5f4/0x6b0 [ 531.398163] [<c0103177>] ? restore_all_notrace+0x0/0x18 [ 531.398343] [<c062fc5a>] ? printk+0x18/0x1e [ 531.398493] [<c0128d3f>] ? oops_exit+0x2f/0x40 [ 531.398668] [<c0106262>] oops_end+0x92/0xa0 [ 531.398816] [<c062fc5a>] ? printk+0x18/0x1e [ 531.398994] [<c011ade6>] no_context+0xb6/0x150 [ 531.399147] [<c011aed7>] __bad_area_nosemaphore+0x57/0x190 [ 531.399337] [<c015049b>] ? __lock_acquire+0x2bb/0x1280 [ 531.399497] [<c011b058>] ? bad_area+0x28/0x50 [ 531.399666] [<c011b06a>] bad_area+0x3a/0x50 [ 531.399816] [<c011b3e5>] do_page_fault+0x235/0x280 [ 531.399989] [<c011b1b0>] ? do_page_fault+0x0/0x280 [ 531.400184] [<c0632ae8>] error_code+0x70/0x78 [ 531.400336] [<c063007b>] ? schedule+0x2cb/0x3f0 [ 531.400509] [<c01b798c>] ? dispose_list+0x3c/0xf0 [ 531.400663] [<c01b7d5b>] invalidate_inodes+0xcb/0x130 [ 531.400839] [<c01a5f32>] generic_shutdown_super+0x42/0xd0 [ 531.400999] [<c01a5fe5>] kill_block_super+0x25/0x40 [ 531.401174] [<c01e30f0>] ? vfs_quota_off+0x0/0x20 [ 531.401327] [<c01a66ca>] deactivate_super+0x7a/0x90 [ 531.401501] [<c01bb37a>] mntput_no_expire+0x5a/0x90 [ 531.401655] [<c01bb66c>] sys_umount+0x4c/0x320 [ 531.401826] [<c01bb959>] sys_oldumount+0x19/0x20 [ 531.401978] [<c010305b>] sysenter_do_call+0x12/0x32 [ 531.402147] ---[ end trace 422e7957c361f27d ]--- (gdb) l *(dispose_list+0x3c) 0xc01b798c is in dispose_list (include/linux/list.h:571). 566 567 static inline void __hlist_del(struct hlist_node *n) 568 { 569 struct hlist_node *next = n->next; 570 struct hlist_node **pprev = n->pprev; 571 *pprev = next; 572 if (next) 573 next->pprev = pprev; 574 } 575 (gdb) l *(invalidate_inodes+0xcb) 0xc01b7d5b is in invalidate_inodes (fs/inode.c:436). 431 fsnotify_unmount_inodes(&sb->s_inodes); 432 busy = invalidate_list(&sb->s_inodes, &throw_away); 433 spin_unlock(&inode_lock); 434 435 dispose_list(&throw_away); 436 up_write(&iprune_sem); 437 438 return busy; 439 } 440 EXPORT_SYMBOL(invalidate_inodes); Regards, Eric ------------------------------------------------------------------------------ Come build with us! 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