[lkml]   [2001]   [May]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH] SMP race in ext2 - metadata corruption.

On Fri, 4 May 2001, Linus Torvalds wrote:

> On Fri, 4 May 2001, Alexander Viro wrote:
> >
> > Ehh... There _is_ a way to deal with that, but it's deeply Albertesque:
> > * add pagecache access for block device
> > * put your "real" root on /dev/loop0 (setup from initrd)
> > * dd
> You're one sick puppy.

/me bows

Nice to see that imitation was good enough ;-) Seriously, I half-expected
Albert to show up at that point of thread and tried to anticipate what
he'd produce.

ObProcfs: I don't think that walking the page tables is a good way to
compute RSS, especially since VM maintains the thing. Mind if I rip
it out? In effect, implementation of /prc/<pid>/statm
* produces extremely bogus values (VMA is from library if it goes
beyond 0x60000000? Might be even true 7 years ago...) and nobody
had cared about them for 6-7 years
* makes stuff like top(1) _walk_ _whole_ _page_ _tables_ _of_ _all_
_processes_ each 5 seconds. No wonder it's slow like hell and eats
tons of CPU time.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 12:52    [W:0.285 / U:0.948 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site