Date: Tue, 7 Dec 2010 11:48:57 -0500 From: Justin Hibbits <jrh29@alumni.cwru.edu> To: Nathan Whitehorn <nwhitehorn@freebsd.org> Cc: FreeBSD PowerPC ML <freebsd-ppc@freebsd.org> Subject: Re: Kernel panic in moea_pvo_to_pte Message-ID: <AANLkTikdwq4BpQnW2yV6moA=5L03PxvWK4R6FoRvDXuy@mail.gmail.com> In-Reply-To: <F61DEFCA-7028-415D-B8D3-3ED63FC017D7@freebsd.org> References: <AANLkTi=4Ay%2BxRFiyJopbGjf-nUQ9y6h0QJTT8oncNSZ6@mail.gmail.com> <F61DEFCA-7028-415D-B8D3-3ED63FC017D7@freebsd.org>
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On Tue, Dec 7, 2010 at 9:56 AM, Nathan Whitehorn <nwhitehorn@freebsd.org>wrote: > > On Dec 7, 2010, at 7:23 AM, Justin Hibbits wrote: > > Since I started rebuilding ports yesterday, I've been hit by this panic >> (copied from a low-res camera): >> >> panic: moea_pvo_to_pte: pvo 0x17e6810 pte does not match pte 0x26e0740 in >> moea_pteg_table >> >> 0xe52f68a0: at panic+0x13c >> 0xe52f68f0: at moea_pvo_to_pte+0x154 >> 0xe52f6910: at moea_pvo_remove+0x20 >> 0xe52f6930: at moea_remove+0x94 >> 0xe52f6960: at pmap_remove+0x80 >> 0xe52f6980: at vm_map_delete+0x1d0 >> 0xe52f69e0: at vm_map_remove+0x74 >> 0xe52f6a00: at vmspace_exit+0x108 >> 0xe52f6a30: at exit1+0x48c >> 0xe52f6a70: at sys_exit+0x1c >> 0xe52f6a80: at syscallenter+0x258 >> ... >> >> The svn version is r215752, I'm currently building r216254 hoping that >> might >> fix something. This panic seems to occur after about 1-2 hours of ports >> building, so is reproducible to me. I also have the crash dumps available >> (2). >> > > This is a serious bug. Could you rebuild the kernel with the attached > patch? That should provide some information on why the kernel has triggered > this panic. Also, could you provide some more details on your system? I'm > guessing it is some variety of G4, but knowing the specific CPU model and > whether it is SMP would be very helpful. > -Nathan > I'll apply this patch when I get home, seems the machine has crashed yet again while building X :/ Machine details: It is a G4. MPC7455 single CPU, 2GB RAM (MDD single 1.25GHz). - Justin
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