Re: [BUG] kernel BUG at arch/i386/mm/highmem.c:15! on 2.6.23-rc8/rc9

2007-10-05 Thread Hugh Dickins
On Fri, 5 Oct 2007, gurudas pai wrote: > gurudas pai wrote: > > Hugh Dickins wrote: > > > > > > [PATCH] fix sys_remap_file_pages BUG at highmem.c:15! > > > > Yes, indeed this patch worked for me , test completed successfully!! (on > > preempt kernel). Will continue testing with non-preempt kernel

Re: [BUG] kernel BUG at arch/i386/mm/highmem.c:15! on 2.6.23-rc8/rc9

2007-10-05 Thread Hugh Dickins
On Fri, 5 Oct 2007, gurudas pai wrote: gurudas pai wrote: Hugh Dickins wrote: [PATCH] fix sys_remap_file_pages BUG at highmem.c:15! Yes, indeed this patch worked for me , test completed successfully!! (on preempt kernel). Will continue testing with non-preempt kernel and update

Re: [BUG] kernel BUG at arch/i386/mm/highmem.c:15! on 2.6.23-rc8/rc9

2007-10-04 Thread gurudas pai
gurudas pai wrote: Hugh Dickins wrote: On Thu, 4 Oct 2007, gurudas pai wrote: Nick Piggin wrote: While running Oracle database test on x86/6GB RAM machine panics with following messages. Hmm, seems like something in sys_remap_file_pages might have broken. It's a bit hard to work out from the

Re: [BUG] kernel BUG at arch/i386/mm/highmem.c:15! on 2.6.23-rc8/rc9

2007-10-04 Thread gurudas pai
Hugh Dickins wrote: On Thu, 4 Oct 2007, gurudas pai wrote: Nick Piggin wrote: While running Oracle database test on x86/6GB RAM machine panics with following messages. Hmm, seems like something in sys_remap_file_pages might have broken. It's a bit hard to work out from the backtrace, though.

Re: [BUG] kernel BUG at arch/i386/mm/highmem.c:15! on 2.6.23-rc8/rc9

2007-10-04 Thread Hugh Dickins
On Thu, 4 Oct 2007, Linus Torvalds wrote: > > Ouch. Very much so. > > The patch looks obviously correct, to the point that I don't understand > how this bug happened in the first place. It seems to have been > introduced by Nick in d0217ac04ca6591841e5665f518e38064f4e65bd ("mm: fault >

Re: [BUG] kernel BUG at arch/i386/mm/highmem.c:15! on 2.6.23-rc8/rc9

2007-10-04 Thread Linus Torvalds
On Thu, 4 Oct 2007, Hugh Dickins wrote: > > Very helpful, thanks. Guru, please try the appended patch, I think > you'll find it fixes it for you (it did for me, once I'd puzzled out > why I was failing to reproduce the problem - tests on ext3 don't work). > Thank you so much for reporting this

Re: [BUG] kernel BUG at arch/i386/mm/highmem.c:15! on 2.6.23-rc8/rc9

2007-10-04 Thread Hugh Dickins
On Thu, 4 Oct 2007, gurudas pai wrote: > Nick Piggin wrote: > > > > While running Oracle database test on x86/6GB RAM machine panics with > > > > following messages. > > > > > > Hmm, seems like something in sys_remap_file_pages might have broken. > > > It's a bit hard to work out from the

Re: [BUG] kernel BUG at arch/i386/mm/highmem.c:15! on 2.6.23-rc8/rc9

2007-10-04 Thread gurudas pai
While running Oracle database test on x86/6GB RAM machine panics with following messages. Hi, Hmm, seems like something in sys_remap_file_pages might have broken. It's a bit hard to work out from the backtrace, though. Is it possible you can strace to find the arguments for the

Re: [BUG] kernel BUG at arch/i386/mm/highmem.c:15! on 2.6.23-rc8/rc9

2007-10-04 Thread Nick Piggin
On Thursday 04 October 2007 00:53, Nick Piggin wrote: > On Thursday 04 October 2007 16:37, gurudas pai wrote: > > Hi, > > > > While running Oracle database test on x86/6GB RAM machine panics with > > following messages. > > Hi, > > Hmm, seems like something in sys_remap_file_pages might have

Re: [BUG] kernel BUG at arch/i386/mm/highmem.c:15! on 2.6.23-rc8/rc9

2007-10-04 Thread Nick Piggin
On Thursday 04 October 2007 16:37, gurudas pai wrote: > Hi, > > While running Oracle database test on x86/6GB RAM machine panics with > following messages. Hi, Hmm, seems like something in sys_remap_file_pages might have broken. It's a bit hard to work out from the backtrace, though. Is it

Re: [BUG] kernel BUG at arch/i386/mm/highmem.c:15! on 2.6.23-rc8/rc9

2007-10-04 Thread Nick Piggin
On Thursday 04 October 2007 16:37, gurudas pai wrote: Hi, While running Oracle database test on x86/6GB RAM machine panics with following messages. Hi, Hmm, seems like something in sys_remap_file_pages might have broken. It's a bit hard to work out from the backtrace, though. Is it possible

Re: [BUG] kernel BUG at arch/i386/mm/highmem.c:15! on 2.6.23-rc8/rc9

2007-10-04 Thread Nick Piggin
On Thursday 04 October 2007 00:53, Nick Piggin wrote: On Thursday 04 October 2007 16:37, gurudas pai wrote: Hi, While running Oracle database test on x86/6GB RAM machine panics with following messages. Hi, Hmm, seems like something in sys_remap_file_pages might have broken. It's a

Re: [BUG] kernel BUG at arch/i386/mm/highmem.c:15! on 2.6.23-rc8/rc9

2007-10-04 Thread gurudas pai
While running Oracle database test on x86/6GB RAM machine panics with following messages. Hi, Hmm, seems like something in sys_remap_file_pages might have broken. It's a bit hard to work out from the backtrace, though. Is it possible you can strace to find the arguments for the

Re: [BUG] kernel BUG at arch/i386/mm/highmem.c:15! on 2.6.23-rc8/rc9

2007-10-04 Thread Hugh Dickins
On Thu, 4 Oct 2007, gurudas pai wrote: Nick Piggin wrote: While running Oracle database test on x86/6GB RAM machine panics with following messages. Hmm, seems like something in sys_remap_file_pages might have broken. It's a bit hard to work out from the backtrace, though.

Re: [BUG] kernel BUG at arch/i386/mm/highmem.c:15! on 2.6.23-rc8/rc9

2007-10-04 Thread Linus Torvalds
On Thu, 4 Oct 2007, Hugh Dickins wrote: Very helpful, thanks. Guru, please try the appended patch, I think you'll find it fixes it for you (it did for me, once I'd puzzled out why I was failing to reproduce the problem - tests on ext3 don't work). Thank you so much for reporting this just

Re: [BUG] kernel BUG at arch/i386/mm/highmem.c:15! on 2.6.23-rc8/rc9

2007-10-04 Thread Hugh Dickins
On Thu, 4 Oct 2007, Linus Torvalds wrote: Ouch. Very much so. The patch looks obviously correct, to the point that I don't understand how this bug happened in the first place. It seems to have been introduced by Nick in d0217ac04ca6591841e5665f518e38064f4e65bd (mm: fault feedback

Re: [BUG] kernel BUG at arch/i386/mm/highmem.c:15! on 2.6.23-rc8/rc9

2007-10-04 Thread gurudas pai
Hugh Dickins wrote: On Thu, 4 Oct 2007, gurudas pai wrote: Nick Piggin wrote: While running Oracle database test on x86/6GB RAM machine panics with following messages. Hmm, seems like something in sys_remap_file_pages might have broken. It's a bit hard to work out from the backtrace, though.

Re: [BUG] kernel BUG at arch/i386/mm/highmem.c:15! on 2.6.23-rc8/rc9

2007-10-04 Thread gurudas pai
gurudas pai wrote: Hugh Dickins wrote: On Thu, 4 Oct 2007, gurudas pai wrote: Nick Piggin wrote: While running Oracle database test on x86/6GB RAM machine panics with following messages. Hmm, seems like something in sys_remap_file_pages might have broken. It's a bit hard to work out from the