Re: Weirdness of "mount -o remount,rw" with write-protected floppy

On Thursday 27 October 2005 06:57, Evgeny Stambulchik wrote:
> The bug is present in both 2.4 and 2.6, and is specific to floppy
> devices. Other RO media I tried (CDROM, RO-exported NFS) are partially
> OK, in the sense that a write attempt returns an error; however, "mount
> -o remount,rw" always returns success (this might be a bug in mount).

Busybox "mount" maintainer's ears perk up to see if this is relevant.  (After 
all, we have a separate implementation you can try to see if it's a tool 
bug.)

But no, this one's clearly a kernel error.  If the kernel is giving write 
errors against the device afterwards, than the kernel's internal state 
toggled successfully, which is all the mount syscall was trying to do.  Mount 
is just reporting whether or not the syscall succeeded, not whether or not it 
should have. :)

Rob
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Follow-Ups:
- Re: Weirdness of "mount -o remount,rw" with write-protected floppy
  - From: Evgeny Stambulchik <[email protected]>

References:
- Weirdness of "mount -o remount,rw" with write-protected floppy
  - From: Evgeny Stambulchik <[email protected]>

Prev by Date: Re: 4GB memory and Intel Dual-Core system
Next by Date: Re: 4GB memory and Intel Dual-Core system
Previous by thread: Re: Weirdness of "mount -o remount,rw" with write-protected floppy
Next by thread: Re: Weirdness of "mount -o remount,rw" with write-protected floppy
Index(es):
- Date
- Thread

[Index of Archives] [Kernel Newbies] [Netfilter] [Bugtraq] [Photo] [Stuff] [Gimp] [Yosemite News] [MIPS Linux] [ARM Linux] [Linux Security] [Linux RAID] [Video 4 Linux] [Linux for the blind] [Linux Resources]