On Sat, 2006-12-16 at 16:50 +0100, Martin Michlmayr wrote:
> Debian recently applied a number of mm changes that went into 2.6.19
> to their 2.6.18 kernel for LSB 3.1 compliance (msync() had problems
> before). Since then, some filesystem corruption has been observed
> which can be traced back to these mm changes. Is anyone aware of
> problems with these patches?
As said by Hugh, no we were not.
> The patches that were applied are:
>
> - mm: tracking shared dirty pages
> - mm: balance dirty pages
> - mm: optimize the new mprotect() code a bit
> - mm: small cleanup of install_page()
> - mm: fixup do_wp_page()
> - mm: msync() cleanup
>
> With these applied to 2.6.18, the Debian installer on a slow ARM
> system fails because a program segfaults due to filesystem corruption:
> http://bugs.debian.org/401980 This problem also occurs if you only
> apply the "mm: tracking shared dirty pages" patch to 2.6.18 from the
> series of 5 patches listed above.
This made me think of a blog entry by DaveM from some time ago:
http://vger.kernel.org/~davem/cgi-bin/blog.cgi/2006/06/09
> Another problem has been reported related to libtorrent: according to
> http://bugs.debian.org/402707 someone also saw this with non-Debian
> 2.6.19 but obviously it's hard to say whether the bugs are really
> related.
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=394392;msg=24 shows
> some dmesg messages but again it's not 100% clear it's the same bug.
>
> Has anyone else seen problems or is aware of a fix to the patches
> listed above that I'm unaware of? It's possible the problem only
> shows up on slow systems. (The corruption is reproducible on a slow
> NSLU2 ARM system with 32 MB ram, but it doesn't happen on a faster ARM
> box with more RAM.)
What is not clear from all these reports is what architectures this is
seen on. I suspect some of them are i686, which together with the
explicit mention of ARM make it a cross platform issue.
-
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/
[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]
