Date: Tue, 16 Nov 2004 12:49:28 -0800 (PST) From: Nik Azim Azam <nskyline_r35@yahoo.com> To: Stephan Uphoff <ups@tree.com>, Doug White <dwhite@gumbysoft.com> Cc: freebsd-current@freebsd.org Subject: Re: number of CPUs and IPI panic Message-ID: <20041116204928.61309.qmail@web54606.mail.yahoo.com> In-Reply-To: <1100617025.2456.27.camel@palm.tree.com>
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my box survived a make buildworld with the patch. without the patch, it will crash after 20-30 mins. i will test the patch further. good work, Stephan. thanks, nik. --- Stephan Uphoff <ups@tree.com> wrote: > On Mon, 2004-11-15 at 22:10, Doug White wrote: > > On Fri, 12 Nov 2004, Stephan Uphoff wrote: > > > > > On Fri, 2004-11-12 at 09:19, Nik Azim Azam > wrote: > > > > Win2K Advanced Server works just fine here. > > > > > > The root cause seems to be a misunderstanding of > the interrupt delivery > > > and buffering mechanism. The fix may take a few > days since it probably > > > requires extensive changes to the IPI layer. > > > > [getting in late on this] > > > > Tomorrow I will have access to a Dell PowerEdge > 6500 (4x500MHz) I can use > > to capture info or test patches. Or see if the bug > reproduces there in the > > first place :) > > > > rwatson mumbled something about wanting to > determine what triggered the > > prior IPI that the panic later trips over. I'll > have to find a sutiable > > place to hide that information... > > Hopefully we can skip the debugging phase and go > directly to the testing > phase. However it would be helpful to know if the > PowerEdge 6500 > encounters any problems without the patch. > > The feedback I have received so far looks promising: > > Andy Farkas wrote: > >> You can download the patch at: > >> http://people.freebsd.org/~ups/ipi4_patch > >> > >> Any feedback is appreciated. > >> > >> Stephan > >> > > I have been hammering the box for the last 4 hours > without > > a panic. > > > > Without your patch, I could easily get a panic by > boot -s then > > fsck. I did this twice (without panic) using your > patch. > > > > Without your patch, I would usually get a panic > during make > > buildworld -j4. So far with your patch its already > done a > > buildworld -j8, and its about to finish a > buildworld -j4. > > (2 buildworld in a row) > > > > This is good indeed. > > > > -andyf > > > > ps. ok to post to list. > > > __________________________________ Do you Yahoo!? The all-new My Yahoo! - Get yours free! http://my.yahoo.com
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