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Message-ID: <48DE6F93.9030002@tmr.com> Date: Sat, 27 Sep 2008 13:38:27 -0400 From: Bill Davidsen <davidsen@....com> To: David Newall <davidn@...idnewall.com> CC: Vegard Nossum <vegard.nossum@...il.com>, linux-kernel@...r.kernel.org Subject: Re: Swap on loop device on tmpfs locks up machine David Newall wrote: > Vegard Nossum wrote: >> It turns out that swap over loop device on tmpfs will lock up the >> machine. > > Doesn't tmpfs use otherwise-free virtual memory? I expect the machine > would lock up if you put swap (i.e. additional virtual memory) on such a > device. To reinstate the paragraph from the O.P. you snipped: >> I'm not sure it's really a very good idea to do this in the first >> place, but should something give a warning or prevent a user from >> doing it? I think you are both right, it is a bad thing to do, it does seem to lock up, and something should prevent a user from doing that. But it may be easier to fix the lockup than get the "prevent" right, there appears to be a loop there. Just a simple questions to the O.P.: what were you thinking?!! Or was this a test just to see what would happen? -- Bill Davidsen <davidsen@....com> "We have more to fear from the bungling of the incompetent than from the machinations of the wicked." - from Slashdot -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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