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Date: Sat, 18 Nov 2006 22:05:06 -0500 From: Bill Davidsen <davidsen@....com> To: Andrew Morton <akpm@...l.org> CC: "Eric W. Biederman" <ebiederm@...ssion.com>, Andi Kleen <ak@...e.de>, Linus Torvalds <torvalds@...l.org>, discuss@...-64.org, William Cohen <wcohen@...hat.com>, Komuro <komurojun-mbn@...ty.com>, Ernst Herzberg <earny@...4u.de>, Andre Noll <maan@...temlinux.org>, oprofile-list@...ts.sourceforge.net, Jens Axboe <jens.axboe@...cle.com>, linux-usb-devel@...ts.sourceforge.net, phil.el@...adoo.fr, Adrian Bunk <bunk@...sta.de>, Ingo Molnar <mingo@...hat.com>, Alan Stern <stern@...land.harvard.edu>, linux-pci@...ey.karlin.mff.cuni.cz, Stephen Hemminger <shemminger@...l.org>, Prakash Punnoor <prakash@...noor.de>, Len Brown <len.brown@...el.com>, Alex Romosan <romosan@...orax.lbl.gov>, gregkh@...e.de, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Andrey Borzenkov <arvidjaar@...l.ru> Subject: Re: [discuss] Re: 2.6.19-rc5: known regressions (v3) Andrew Morton wrote: > On Fri, 17 Nov 2006 10:59:07 +0100 > Mikael Pettersson <mikpe@...uu.se> wrote: > >> Andrew Morton writes: >> > On Thu, 16 Nov 2006 11:55:46 +0100 >> > Mikael Pettersson <mikpe@...uu.se> wrote: >> > >> > > Andrew Morton writes: >> > > > Surely the appropriate behaviour is to allow oprofile to steal the NMI and >> > > > to then put the NMI back to doing the watchdog thing after oprofile has >> > > > finished with it. >> > > >> > > Which is _exactly_ what pre-2.6.19-rc1 kernels did. I implemented >> > > the in-kernel API allowing real performance counter drivers like >> > > oprofile (and perfctr) to claim the HW from the NMI watchdog, >> > > do their work, and then release it which resumed the watchdog. >> > >> > OK. But from Andi's comments it seems that the NMI watchdog was failing to >> > resume its operation. >> >> It certainly worked when I originally implemented it. If it didn't work >> that way before 2.6.19-rc1 butchered it then that would have been a bug >> that should have been fixed. > > Oh. OK. > > Meanwhile, 2.6.19-rc6 remains unfixed. > Has anyone verified that nmi watchdog works at all in 2.6.19-rc6? I haven't built a kernel since rc2, other things have been taking my time. -- Bill Davidsen <davidsen@....com> Obscure bug of 2004: BASH BUFFER OVERFLOW - if bash is being run by a normal user and is setuid root, with the "vi" line edit mode selected, and the character set is "big5," an off-by-one errors occurs during wildcard (glob) expansion. - 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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