Re: PROBLEM: Kernel 2.5.19 oops when copying files from SMBFS fs to VFAT fs

From: Urban Widmark (urban@teststation.com)
Date: Thu May 30 2002 - 17:06:12 EST


On Thu, 30 May 2002, Felipe Alfaro Solana wrote:

> Starting with linux kernel 2.5.19, when I try to cp/mv files from one of my
> Windows 2000, Service Pack 2 machines (mounted as SMBFS on
> /net/gateway-data) to a local VFAT partition (mounted as VFAT on /mnt/data),
> causes the kernel to oops.
>
> Please, see attached "dmesg" file for information on the kernel oops
> message. Also, the "ksymoops" file contains the information dumped by
> ksymooops on the faulting kernel.

It appears to crash in smbfs smb_readpage because struct file is NULL.
Don't know if that is a caller error or a smbfs bug.

> Steps to reproduce the problem:
> ===============================
> mount -t vfat /dev/hda3 /mnt/data -o gid=100,umask=007
> mount -t smbfs //gateway/data /net/ -o username=Administrator
> /mnt/data/Jpgs/
> cp /net/* .

Approximately how much data is this?
Does this also happen with a kernel in the stable series? (2.4.19-pre9 ?)

/Urban

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