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Subject2.4.20-pre1-ac1: Filesystem panic attempting to mount ext3
Hello,

the problem appeared on the first partition of an ide
IBM-DHEA-36481 with one fat partition on it. I repartioned
the device (4 primaries) and "mke2fs -j" three of them.

Than i tried to mount the newly created filesystems and got
this in syslog:

Sep 1 08:47:32 steel kernel: FAT: Did not find valid FSINFO signature.
Sep 1 08:47:32 steel kernel: Found signature1 0x0 signature2 0x0 sector=1.
Sep 1 08:47:32 steel kernel: Directory 1: bad FAT
Sep 1 08:47:32 steel kernel: attempt to access beyond end of device
Sep 1 08:47:32 steel kernel: 16:41: rw=0, want=902238098, limit=3903763
Sep 1 08:47:32 steel kernel: attempt to access beyond end of device
Sep 1 08:47:32 steel kernel: 16:41: rw=0, want=902238099, limit=3903763
Sep 1 08:47:32 steel kernel: attempt to access beyond end of device
Sep 1 08:47:32 steel kernel: 16:41: rw=0, want=902238099, limit=3903763
Sep 1 08:47:32 steel kernel: attempt to access beyond end of device
Sep 1 08:47:32 steel kernel: 16:41: rw=0, want=902238100, limit=3903763
Sep 1 08:47:32 steel kernel: attempt to access beyond end of device
Sep 1 08:47:32 steel kernel: 16:41: rw=0, want=902238100, limit=3903763
Sep 1 08:47:32 steel kernel: attempt to access beyond end of device
Sep 1 08:47:32 steel kernel: 16:41: rw=0, want=902238101, limit=3903763
Sep 1 08:47:32 steel kernel: attempt to access beyond end of device
Sep 1 08:47:32 steel kernel: 16:41: rw=0, want=902238101, limit=3903763
Sep 1 08:47:32 steel kernel: attempt to access beyond end of device
Sep 1 08:47:32 steel kernel: 16:41: rw=0, want=902238102, limit=3903763
Sep 1 08:47:32 steel kernel: Filesystem panic (dev 16:41).
Sep 1 08:47:32 steel kernel: FAT error
Sep 1 08:47:32 steel kernel: File system has been set read-only

Umount produced something as well:

Sep 1 08:47:54 steel kernel: FAT: Did not find valid FSINFO signature.
Sep 1 08:47:54 steel kernel: Found signature1 0x0 signature2 0x0 sector=1.

Assuming that some garbage was left on the disk event after mke2fs,
i did "dd if=/dev/zero of=/dev/hdd1 bs=512", which cured the problem,
after being followed by mke2fs.

# fdisk -l /dev/hdd

Disk /dev/hdd: 255 heads, 63 sectors, 790 cylinders
Units = cylinders of 16065 * 512 bytes

Device Boot Start End Blocks Id System
/dev/hdd1 * 1 486 3903763+ 83 Linux
/dev/hdd2 487 608 979965 83 Linux
/dev/hdd3 609 632 192780 82 Linux swap
/dev/hdd4 633 790 1269135 83 Linux


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