Messages in this thread |  | | Date | Fri, 4 May 2001 14:29:26 -0400 (EDT) | From | Alexander Viro <> | Subject | Re: [PATCH] SMP race in ext2 - metadata corruption. |
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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.
[snip] /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.
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