Messages in this thread | | | Subject | Re: OOPSes + WARNING: at fs/file_table.c:262 __fput() in -mm 2007-11-06-02-32++ | From | Dave Hansen <> | Date | Fri, 09 Nov 2007 10:44:13 -0800 |
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On Fri, 2007-11-09 at 13:23 -0500, Erez Zadok wrote: > > Setup: FC6 system with MM snapshot broken-out-2007-11-06-02-32 and > these two > patches added: > > r-o-bind-mounts-track-number-of-mount-writer-fix-buggy-loop.patch > r-o-bind-mounts-track-number-of-mount-writer-fix-buggy-loop-checkpatch-fixes.patch > > All I do is boot the system with said kernel, wait a few seconds, > then shut > it down with "init 0". As services shutdown, I get this: > > Stopping RPC idmapd: > > kernel: __fput() of writeable file with no mnt_want_write() > kernel: WARNING: at fs/file_table.c:262 __fput() > kernel: [<c010283e>] show_trace_log_lvl+0x12/0x25 > kernel: [<c0103042>] show_trace+0xd/0x10 > kernel: [<c010313e>] dump_stack+0x15/0x17 > kernel: [<c01491a4>] __fput+0x153/0x203 > kernel: [<c014952d>] fput+0x2d/0x32 > kernel: [<c0146c8a>] filp_close+0x50/0x5a > kernel: [<c01104fc>] put_files_struct+0x7c/0xbe > kernel: [<c0110575>] __exit_files+0x37/0x3c > kernel: [<c01115de>] do_exit+0x1ed/0x653 > kernel: [<c0111ab2>] sys_exit_group+0x0/0x11 > kernel: [<c01183fc>] get_signal_to_deliver+0x3c4/0x3e8 > kernel: [<c0101873>] do_notify_resume+0x8c/0x6c4 > kernel: [<c0102339>] work_notifysig+0x13/0x1a
This looks like RPC idmapd had a file open for write when it tried to exit. However, that file never had a mnt_want_write() taken for it. This isn't a new bug, but the new debugging code found it much faster.
I'm looking for a fix now.
-- Dave
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