Messages in this thread | | | From | Lorenzo Allegrucci <> | Subject | Re: 2.6.10-rc1-mm3 | Date | Fri, 5 Nov 2004 13:36:19 +0100 |
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On Friday 05 November 2004 11:48, Andi Kleen wrote: > On Fri, Nov 05, 2004 at 02:17:58AM -0800, Andrew Morton wrote: > > Lorenzo Allegrucci <l_allegrucci@yahoo.it> wrote: > > > > > > On Friday 05 November 2004 09:13, Andrew Morton wrote: > > > > > > > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.10-rc1/2.6.10-rc1-mm3/ > > > > > > ------------[ cut here ]------------ > > > kernel BUG at mm/memory.c:156! > > > invalid operand: 0000 [#1] > > > PREEMPT > > > Modules linked in: ipv6 tun dm_mod emu10k1 sound soundcore ac97_codec unix > > > CPU: 0 > > > EIP: 0060:[clear_page_range+276/304] Not tainted VLI > > > EFLAGS: 00010206 (2.6.10-rc1-mm3) > > > EIP is at clear_page_range+0x114/0x130 > > > eax: daffc000 ebx: 00483fff ecx: c03b7088 edx: daffc000 > > > esi: 00000000 edi: 00080000 ebp: dca51ed0 esp: dca51ea8 > > > ds: 007b es: 007b ss: 0068 > > > Process shmt04 (pid: 4854, threadinfo=dca51000 task=de374510) > > > > hm, I thought I ran ltp. Andi, this is due to the 4level patches. I can > > reproduce it with non-PAE x86. But testing was interrupted by the apparent > > suicide of an IDE disk :( > > Ok, I think that was a BUG_ON I added later to check for something. > I think problem is that last is off by one at this point. That is ok. > I think it's safe to just remove it. > > I will do a non PAE i386 LTP run with this now. Lorenzo can you > check it solves the problem for you? > > -Andi > > Remove bogus BUG_ON. > > Signed-off-by: Andi Kleen <ak@muc.de> > > > diff -u linux-2.6.10rc1-mm3/mm/memory.c-o linux-2.6.10rc1-mm3/mm/memory.c > --- linux-2.6.10rc1-mm3/mm/memory.c-o 2004-11-05 11:42:00.000000000 +0100 > +++ linux-2.6.10rc1-mm3/mm/memory.c 2004-11-05 11:45:37.000000000 +0100 > @@ -153,7 +153,6 @@ > return; > } > BUG_ON(addr & ~PGDIR_MASK); > - BUG_ON(end & ~PGDIR_MASK); > pgd_start = pml4_pgd_offset(pml4, addr); > free = 0; > pgd = pgd_start; > >
The above patch solves the problem for me.
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