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Re: WARNING: CPU: 0 PID: 913 at fs/inode.c:275 drop_nlink+0x4b/0x50()

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Am 23.11.2015 um 08:55 schrieb Vegard Nossum:
> Hi,
> 
> With the attached vfat disk image (fuzzed), I get the following WARNING:
> 
> WARNING: CPU: 0 PID: 913 at fs/inode.c:275 drop_nlink+0x4b/0x50()
> CPU: 0 PID: 913 Comm: a.out Not tainted 4.2.5+ #39
> Stack:
>  e0931b50 60075412 e13981e8 00000009
>  00000000 605cc684 e0931b60 605cf637
>  e0931bc0 60040f6d e0931ba0 6011e12b
> Call Trace:
>  [<60029f3b>] show_stack+0xdb/0x1a0
>  [<605cf637>] dump_stack+0x2a/0x2c
>  [<60040f6d>] warn_slowpath_common+0x9d/0xf0
>  [<6004114c>] warn_slowpath_null+0x1c/0x20
>  [<6011e12b>] drop_nlink+0x4b/0x50
>  [<601e9e2f>] vfat_rename+0x56f/0x800
>  [<60113dd2>] vfs_rename+0x9a2/0x9d0
>  [<60114439>] SyS_renameat2+0x639/0x690
>  [<601144d0>] SyS_rename+0x20/0x30
>  [<6002c5ce>] handle_syscall+0x6e/0xa0
>  [<6003a911>] userspace+0x4f1/0x5e0
> 
> To trigger it, you have to do a rename("/mnt/a/b/1", "/mnt/1"), where
> /mnt is your mountpoint.

Not here. All I get is:
FAT-fs (ubdb): Corrupted directory (i_pos 244)

Did you something before the rename()?

Thanks,
//richard
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WARNING: CPU: 0 PID: 913 at fs/inode.c:275 drop_nlink+0x4b/0x50() Vegard Nossum <vegard.nossum@oracle.com> - 2015-11-23 09:00 +0100
  Re: WARNING: CPU: 0 PID: 913 at fs/inode.c:275 drop_nlink+0x4b/0x50() Richard Weinberger <richard@nod.at> - 2015-11-23 23:30 +0100
    Re: WARNING: CPU: 0 PID: 913 at fs/inode.c:275 drop_nlink+0x4b/0x50() Vegard Nossum <vegard.nossum@oracle.com> - 2015-11-24 09:10 +0100
      Re: WARNING: CPU: 0 PID: 913 at fs/inode.c:275 drop_nlink+0x4b/0x50() OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> - 2015-11-25 23:00 +0100
        Re: WARNING: CPU: 0 PID: 913 at fs/inode.c:275 drop_nlink+0x4b/0x50() Vegard Nossum <vegard.nossum@oracle.com> - 2015-11-26 09:20 +0100
          Re: WARNING: CPU: 0 PID: 913 at fs/inode.c:275 drop_nlink+0x4b/0x50() OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> - 2015-11-26 09:30 +0100
          Re: WARNING: CPU: 0 PID: 913 at fs/inode.c:275 drop_nlink+0x4b/0x50() OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> - 2015-11-26 09:40 +0100

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