Re: [GIT PULL] Please pull NFS client changes for Linux 4.13

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From	"davej@codemonkey.org.uk" <davej@codemonkey.org.uk>
Newsgroups	linux.kernel
Subject	Re: [GIT PULL] Please pull NFS client changes for Linux 4.13
Date	Tue, 01 Aug 2017 20:00:01 +0200
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On Tue, Aug 01, 2017 at 10:20:31AM -0700, Linus Torvalds wrote:

 > So I think the 'pathname' part may actually be entirely a red herring,
 > and it's the underlying access itself that just picks up a random
 > pointer from a stack that now contains something different. And KASAN
 > didn't notice the stale stack access itself, because the stack slot is
 > still valid - it's just no longer the original 'verifier' allocation.
 > 
 > Or *something* like that.
 > 
 > None of this looks even remotely new, though - the code seems to go
 > back to 2009. Have you just changed what you're testing to trigger
 > these things?

No idea why it only just showed up, but it isn't 100% reproducable
either.  A month or so ago I did disable the V4 code on the server
completely (as I was using v3 everywhere else), so maybe I started hitting
a fallback path somewhere.  *shrug*

	Dave

Thread

Re: [GIT PULL] Please pull NFS client changes for Linux 4.13 "davej@codemonkey.org.uk" <davej@codemonkey.org.uk> - 2017-07-31 17:50 +0200
  Re: [GIT PULL] Please pull NFS client changes for Linux 4.13 Linus Torvalds <torvalds@linux-foundation.org> - 2017-08-01 07:40 +0200
    Re: [GIT PULL] Please pull NFS client changes for Linux 4.13 "davej@codemonkey.org.uk" <davej@codemonkey.org.uk> - 2017-08-01 18:00 +0200
      Re: [GIT PULL] Please pull NFS client changes for Linux 4.13 Linus Torvalds <torvalds@linux-foundation.org> - 2017-08-01 19:30 +0200
        Re: [GIT PULL] Please pull NFS client changes for Linux 4.13 Trond Myklebust <trondmy@primarydata.com> - 2017-08-01 19:40 +0200
        Re: [GIT PULL] Please pull NFS client changes for Linux 4.13 "davej@codemonkey.org.uk" <davej@codemonkey.org.uk> - 2017-08-01 20:00 +0200
          Re: [GIT PULL] Please pull NFS client changes for Linux 4.13 Trond Myklebust <trondmy@primarydata.com> - 2017-08-01 20:00 +0200
        Re: [GIT PULL] Please pull NFS client changes for Linux 4.13 Linus Torvalds <torvalds@linux-foundation.org> - 2017-08-01 20:00 +0200

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