http://bugzilla.kernel.org/show_bug.cgi?id=14562 --- Comment #1 from Theodore Tso <tytso@xxxxxxx> 2009-11-09 02:44:52 --- On Sun, Nov 08, 2009 at 10:52:59PM +0000, bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote: > > Created a new ext4 fs on sda5. > Did copy my backup (about 40Gig back) und did a umount to the fs. > After this i got this warning: Did you also do a mount operation shortly afterwards? It looks like 4 seconds after the unmount completed, it was a mount operation that caused the warning. > [43805.914995] EXT4-fs: mballoc: 6643657 preallocated, 1203082 discarded > [43809.377291] ------------[ cut here ]------------ > [43809.377320] WARNING: at /build/buildd/linux-2.6.31/mm/page_alloc.c:1751 The EXT4-fs: mballoc: is the last line you would normally expect to see when unmounting the filesystem. And the warning took place 4 seconds later, which is a eternity as far as kernel-time is considered. Also, look at the bottom of the call trace: > [43809.377512] Call Trace: > [43809.377531] [<c014518d>] warn_slowpath_common+0x6d/0xa0 .... > [43809.377633] [<c01e088f>] __kmalloc+0xdf/0x180 > [43809.377646] [<c031974e>] match_number+0x2e/0xa0 > [43809.377657] [<c03197ea>] match_int+0xa/0x10 > [43809.377670] [<c0274102>] parse_options+0x152/0x810 .... > [43809.377760] [<c027baa0>] ? ext4_fill_super+0x0/0x1900 > [43809.377772] [<c01e9cde>] vfs_kern_mount+0x5e/0x120 > [43809.377784] [<c01e9df9>] do_kern_mount+0x39/0xd0 > [43809.377797] [<c01fee2e>] do_new_mount+0x6e/0xa0 > [43809.377808] [<c01ff7f9>] do_mount+0x1c9/0x1e0 > [43809.377819] [<c01ff876>] sys_mount+0x66/0xa0 ^^^^^^^^^ > [43809.377831] [<c010336c>] syscall_call+0x7/0xb > [43809.377840] ---[ end trace a7919e7f17c0a727 ]--- Looks like this was some kind of "interesting" set of mount options passed to the kernel. Any chance you could figure out what the mount options were to the mount operation? - Ted -- Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
