Messages in this thread | | | Date | Tue, 9 Apr 2013 12:12:34 -0500 | From | Nathan Zimmer <> | Subject | Re: hangs on boot in 9984d7394618df9 |
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On 04/08/2013 06:46 PM, Doug Anderson wrote: > Al, > > On Mon, Apr 8, 2013 at 4:06 PM, Al Viro <viro@zeniv.linux.org.uk> wrote: >> Folks, see if vfs.git#experimental works for you; the PITA had apparently >> been caused by change of open() semantics for /proc/<pid>/fd/<some_pipe> - >> it started to behave like a FIFO, i.e. wait for peer to show up. Normally >> that's not a problem, but if you have closed e.g. the write end of a pipe >> and try to open /proc/<pid>/fd/<read_end_of_pipe>, you'll get open() waiting >> for writers to appear. Which isn't what we used to do here (open succeeded >> immediately) and apparently that was enough to trip drakut. >> >> Branch head should be at 574179469f7370aadb9cbac1ceca7c3723c17bee. > That branch booted fine for me and didn't show any problems. > > I wasn't easily able to merge onto linux-next and test there though. > I tried applying these the 4 top commits of your branch to > "next-20130408" and it didn't solve my problems. A full merge of your > branch to linux-next showed conflicts and I didn't dig. > > -Doug I booted great for me too. Also the numbers from the scaling test are improved also, at least on my 128p box. I'll verify on a 512 or larger box when I have the chance. However I think I still should to provide some relief for the older kernels.
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