Date: Sat, 27 Sep 2014 00:47:02 -0700 From: Mark Millard <markmi@dsl-only.net> To: FreeBSD PowerPC ML <freebsd-ppc@freebsd.org> Subject: backtrace information from the 2nd(?) most common boot crash place on PowerMac G5's: just after real memory = ... (... MB) Message-ID: <D5DC1914-5F1E-426E-821E-766CE943F82F@dsl-only.net>
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The following includes backtrace information from the 2nd most common = boot crash place in the boot message sequence on PowerMac G5's: just = after it reports real memory =3D ... (... MB). Classically it reports data storage interrupt here and it did again. But = more is dumped in my current configuration than before. FreeBSD FBSDG5M1 10.1-BETA2 FreeBSD 10.1-BETA2 #16 r271944M: Fri Sep 26 = 23:01:54 PDT 2014 root@FBSDG5M1:/usr/obj/usr/src/sys/GENERIC64 = powerpc but with options DDB and DGB in GENERIC64, WITH_DEBUG_FILES=3D, = WITHOUT_CLANG=3D, WIHT_DEBUG=3D in /etc/make.conf. Also: DDB hacked to = dump various things automatically so it happens during early boot = crashes/hangs. The information reported was... fatal kernel trap exception =3D 0x300 (data storage interrupt) virtual address =3D 0x75e0000 dsisr =3D 0x42000000 curthread =3D 0xdbc290 pid =3D 0, comm =3D srr0: 0x885608 .moea64_zero_page+1ac (a dcbz r0,r10) lr: 0x8ba31c .pmap_zero_page+0x7c ctr: 0x88545c .moea64_zero_page 0x8ba318: .pmap_zero_page+0x78 0x84167c: .kmem_back+0x2d0 0x8417fc: .kmem_malloc+0x7c 0x840dc4: .vm_ksubmap_init+0x8c 0x882130: .cpu_startup+0x10c 0x4d9c10: .mi_startup+0x10c btext+0xbc (???) r0: 0x1 r1: 0xc000000000008740 r2: 0xd19468 r3: 0xe4d3a8 mmu_kernel_obj r4: 0xc000000002bfc290 r5: 0xc7dfa0 mmu_zero_page_desc r6: 0xc000000000063af8 r7: 0x2 r8: 0xe0c310 vm_phys_free_queues r9: 0x80 dbsize+0xc r10: 0x7f5e0000 r11: 0x80 dbsize_0xc r12: 0x24042042 r13: 0xdbc290 thread0 r14-r19: all 0 r20: 0x10c2000 r21: 0x4 r22: 0x163f000 r23: 0xc0000000d03fd000 r24: 0x3800 r25: 0x262 r26: 0x400000000000000 r27: 0xe4d3a8 mmu_kernel_obj r28: 0xc000000002bfc290 r29: 0xc000000002bfc290 (yes: again) r30: 0x75e0000 r31: 0xc000000000008740 cr: 0x44042044 xer: 0 (I did not write down srr1. Drat.) =3D=3D=3D Mark Millard markmi at dsl-only.net
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