* [BUG] 2.6.25-rc8-mm1 kernel panic while bootup on powerpc [not found] <20080401213214.8fbb6d6b.akpm@linux-foundation.org> @ 2008-04-02 6:25 ` Kamalesh Babulal 2008-04-02 6:39 ` Andrew Morton 0 siblings, 1 reply; 10+ messages in thread From: Kamalesh Babulal @ 2008-04-02 6:25 UTC (permalink / raw) To: Andrew Morton; +Cc: linuxppc-dev, Balbir Singh, linux-kernel Hi Andrew, The 2.6.25-rc8-mm1 kernel panic's while bootup on the power machine(s). [ 0.000000] ------------[ cut here ]------------ [ 0.000000] kernel BUG at arch/powerpc/mm/init_64.c:240! [ 0.000000] Oops: Exception in kernel mode, sig: 5 [#1] [ 0.000000] SMP NR_CPUS=32 NUMA PowerMac [ 0.000000] Modules linked in: [ 0.000000] NIP: c0000000003d1dcc LR: c0000000003d1dc4 CTR: c00000000002b6ac [ 0.000000] REGS: c00000000049b960 TRAP: 0700 Not tainted (2.6.25-rc8-mm1-autokern1) [ 0.000000] MSR: 9000000000021032 <ME,IR,DR> CR: 44000088 XER: 20000000 [ 0.000000] TASK = c0000000003f9c90[0] 'swapper' THREAD: c000000000498000 CPU: 0 [ 0.000000] GPR00: c0000000003d1dc4 c00000000049bbe0 c0000000004989d0 0000000000000001 [ 0.000000] GPR04: d59aca40f0000000 000000000b000000 0000000000000010 0000000000000000 [ 0.000000] GPR08: 0000000000000004 0000000000000001 c00000027e520800 c0000000004bf0f0 [ 0.000000] GPR12: c0000000004bf020 c0000000003fa900 0000000000000000 0000000000000000 [ 0.000000] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 0.000000] GPR20: 0000000000000000 0000000000000000 0000000000000000 4000000001400000 [ 0.000000] GPR24: 00000000017d64b0 c0000000003d6250 0000000000000000 c000000000504000 [ 0.000000] GPR28: 0000000000000000 cf000000001f8000 0000000001000000 cf00000000000000 [ 0.000000] NIP [c0000000003d1dcc] .vmemmap_populate+0xb8/0xf4 [ 0.000000] LR [c0000000003d1dc4] .vmemmap_populate+0xb0/0xf4 [ 0.000000] Call Trace: [ 0.000000] [c00000000049bbe0] [c0000000003d1dc4] .vmemmap_populate+0xb0/0xf4 (unreliable) [ 0.000000] [c00000000049bc70] [c0000000003d2ee8] .sparse_mem_map_populate+0x38/0x60 [ 0.000000] [c00000000049bd00] [c0000000003c242c] .sparse_early_mem_map_alloc+0x54/0x94 [ 0.000000] [c00000000049bd90] [c0000000003c250c] .sparse_init+0xa0/0x20c [ 0.000000] [c00000000049be50] [c0000000003ab7d0] .setup_arch+0x1ac/0x218 [ 0.000000] [c00000000049bee0] [c0000000003a36ac] .start_kernel+0xe0/0x3fc [ 0.000000] [c00000000049bf90] [c000000000008594] .start_here_common+0x54/0xc0 [ 0.000000] Instruction dump: [ 0.000000] 7fe3fb78 7ca02a14 4082000c 3860fff4 4800003c e92289c8 e96289c0 e9090002 [ 0.000000] e8eb0002 4bc575cd 60000000 78630fe0 <0b030000> 7ffff214 7fbfe840 7fe3fb78 [ 0.000000] ---[ end trace 31fd0ba7d8756001 ]--- [ 0.000000] Kernel panic - not syncing: Attempted to kill the idle task! -- Thanks & Regards, Kamalesh Babulal, Linux Technology Center, IBM, ISTL. ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [BUG] 2.6.25-rc8-mm1 kernel panic while bootup on powerpc 2008-04-02 6:25 ` [BUG] 2.6.25-rc8-mm1 kernel panic while bootup on powerpc Kamalesh Babulal @ 2008-04-02 6:39 ` Andrew Morton 2008-04-02 7:08 ` Kamalesh Babulal 2008-04-04 9:24 ` Andy Whitcroft 0 siblings, 2 replies; 10+ messages in thread From: Andrew Morton @ 2008-04-02 6:39 UTC (permalink / raw) To: Kamalesh Babulal Cc: Badari, linux-kernel, linuxppc-dev, Pulavarty, Balbir Singh On Wed, 02 Apr 2008 11:55:36 +0530 Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> wrote: > Hi Andrew, > > The 2.6.25-rc8-mm1 kernel panic's while bootup on the power machine(s). > > [ 0.000000] ------------[ cut here ]------------ > [ 0.000000] kernel BUG at arch/powerpc/mm/init_64.c:240! > [ 0.000000] Oops: Exception in kernel mode, sig: 5 [#1] > [ 0.000000] SMP NR_CPUS=32 NUMA PowerMac > [ 0.000000] Modules linked in: > [ 0.000000] NIP: c0000000003d1dcc LR: c0000000003d1dc4 CTR: c00000000002b6ac > [ 0.000000] REGS: c00000000049b960 TRAP: 0700 Not tainted (2.6.25-rc8-mm1-autokern1) > [ 0.000000] MSR: 9000000000021032 <ME,IR,DR> CR: 44000088 XER: 20000000 > [ 0.000000] TASK = c0000000003f9c90[0] 'swapper' THREAD: c000000000498000 CPU: 0 > [ 0.000000] GPR00: c0000000003d1dc4 c00000000049bbe0 c0000000004989d0 0000000000000001 > [ 0.000000] GPR04: d59aca40f0000000 000000000b000000 0000000000000010 0000000000000000 > [ 0.000000] GPR08: 0000000000000004 0000000000000001 c00000027e520800 c0000000004bf0f0 > [ 0.000000] GPR12: c0000000004bf020 c0000000003fa900 0000000000000000 0000000000000000 > [ 0.000000] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 > [ 0.000000] GPR20: 0000000000000000 0000000000000000 0000000000000000 4000000001400000 > [ 0.000000] GPR24: 00000000017d64b0 c0000000003d6250 0000000000000000 c000000000504000 > [ 0.000000] GPR28: 0000000000000000 cf000000001f8000 0000000001000000 cf00000000000000 > [ 0.000000] NIP [c0000000003d1dcc] .vmemmap_populate+0xb8/0xf4 > [ 0.000000] LR [c0000000003d1dc4] .vmemmap_populate+0xb0/0xf4 > [ 0.000000] Call Trace: > [ 0.000000] [c00000000049bbe0] [c0000000003d1dc4] .vmemmap_populate+0xb0/0xf4 (unreliable) > [ 0.000000] [c00000000049bc70] [c0000000003d2ee8] .sparse_mem_map_populate+0x38/0x60 > [ 0.000000] [c00000000049bd00] [c0000000003c242c] .sparse_early_mem_map_alloc+0x54/0x94 > [ 0.000000] [c00000000049bd90] [c0000000003c250c] .sparse_init+0xa0/0x20c > [ 0.000000] [c00000000049be50] [c0000000003ab7d0] .setup_arch+0x1ac/0x218 > [ 0.000000] [c00000000049bee0] [c0000000003a36ac] .start_kernel+0xe0/0x3fc > [ 0.000000] [c00000000049bf90] [c000000000008594] .start_here_common+0x54/0xc0 > [ 0.000000] Instruction dump: > [ 0.000000] 7fe3fb78 7ca02a14 4082000c 3860fff4 4800003c e92289c8 e96289c0 e9090002 > [ 0.000000] e8eb0002 4bc575cd 60000000 78630fe0 <0b030000> 7ffff214 7fbfe840 7fe3fb78 > [ 0.000000] ---[ end trace 31fd0ba7d8756001 ]--- > [ 0.000000] Kernel panic - not syncing: Attempted to kill the idle task! > int __meminit vmemmap_populate(struct page *start_page, unsigned long nr_pages, int node) { unsigned long mode_rw; unsigned long start = (unsigned long)start_page; unsigned long end = (unsigned long)(start_page + nr_pages); unsigned long page_size = 1 << mmu_psize_defs[mmu_linear_psize].shift; mode_rw = _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_COHERENT | PP_RWXX; /* Align to the page size of the linear mapping. */ start = _ALIGN_DOWN(start, page_size); for (; start < end; start += page_size) { int mapped; void *p; if (vmemmap_populated(start, page_size)) continue; p = vmemmap_alloc_block(page_size, node); if (!p) return -ENOMEM; pr_debug("vmemmap %08lx allocated at %p, physical %08lx.\n", start, p, __pa(p)); mapped = htab_bolt_mapping(start, start + page_size, __pa(p), mode_rw, mmu_linear_psize, mmu_kernel_ssize); =====> BUG_ON(mapped < 0); } return 0; } Beats me. pseries? Badari has been diddling with the bolted memory code in git-powerpc... ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [BUG] 2.6.25-rc8-mm1 kernel panic while bootup on powerpc 2008-04-02 6:39 ` Andrew Morton @ 2008-04-02 7:08 ` Kamalesh Babulal 2008-04-02 7:17 ` Michael Ellerman 2008-04-04 9:24 ` Andy Whitcroft 1 sibling, 1 reply; 10+ messages in thread From: Kamalesh Babulal @ 2008-04-02 7:08 UTC (permalink / raw) To: Andrew Morton; +Cc: linuxppc-dev, Balbir Singh, Badari Pulavarty, linux-kernel Andrew Morton wrote: > On Wed, 02 Apr 2008 11:55:36 +0530 Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> wrote: > >> Hi Andrew, >> >> The 2.6.25-rc8-mm1 kernel panic's while bootup on the power machine(s). >> >> [ 0.000000] ------------[ cut here ]------------ >> [ 0.000000] kernel BUG at arch/powerpc/mm/init_64.c:240! >> [ 0.000000] Oops: Exception in kernel mode, sig: 5 [#1] >> [ 0.000000] SMP NR_CPUS=32 NUMA PowerMac >> [ 0.000000] Modules linked in: >> [ 0.000000] NIP: c0000000003d1dcc LR: c0000000003d1dc4 CTR: c00000000002b6ac >> [ 0.000000] REGS: c00000000049b960 TRAP: 0700 Not tainted (2.6.25-rc8-mm1-autokern1) >> [ 0.000000] MSR: 9000000000021032 <ME,IR,DR> CR: 44000088 XER: 20000000 >> [ 0.000000] TASK = c0000000003f9c90[0] 'swapper' THREAD: c000000000498000 CPU: 0 >> [ 0.000000] GPR00: c0000000003d1dc4 c00000000049bbe0 c0000000004989d0 0000000000000001 >> [ 0.000000] GPR04: d59aca40f0000000 000000000b000000 0000000000000010 0000000000000000 >> [ 0.000000] GPR08: 0000000000000004 0000000000000001 c00000027e520800 c0000000004bf0f0 >> [ 0.000000] GPR12: c0000000004bf020 c0000000003fa900 0000000000000000 0000000000000000 >> [ 0.000000] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 >> [ 0.000000] GPR20: 0000000000000000 0000000000000000 0000000000000000 4000000001400000 >> [ 0.000000] GPR24: 00000000017d64b0 c0000000003d6250 0000000000000000 c000000000504000 >> [ 0.000000] GPR28: 0000000000000000 cf000000001f8000 0000000001000000 cf00000000000000 >> [ 0.000000] NIP [c0000000003d1dcc] .vmemmap_populate+0xb8/0xf4 >> [ 0.000000] LR [c0000000003d1dc4] .vmemmap_populate+0xb0/0xf4 >> [ 0.000000] Call Trace: >> [ 0.000000] [c00000000049bbe0] [c0000000003d1dc4] .vmemmap_populate+0xb0/0xf4 (unreliable) >> [ 0.000000] [c00000000049bc70] [c0000000003d2ee8] .sparse_mem_map_populate+0x38/0x60 >> [ 0.000000] [c00000000049bd00] [c0000000003c242c] .sparse_early_mem_map_alloc+0x54/0x94 >> [ 0.000000] [c00000000049bd90] [c0000000003c250c] .sparse_init+0xa0/0x20c >> [ 0.000000] [c00000000049be50] [c0000000003ab7d0] .setup_arch+0x1ac/0x218 >> [ 0.000000] [c00000000049bee0] [c0000000003a36ac] .start_kernel+0xe0/0x3fc >> [ 0.000000] [c00000000049bf90] [c000000000008594] .start_here_common+0x54/0xc0 >> [ 0.000000] Instruction dump: >> [ 0.000000] 7fe3fb78 7ca02a14 4082000c 3860fff4 4800003c e92289c8 e96289c0 e9090002 >> [ 0.000000] e8eb0002 4bc575cd 60000000 78630fe0 <0b030000> 7ffff214 7fbfe840 7fe3fb78 >> [ 0.000000] ---[ end trace 31fd0ba7d8756001 ]--- >> [ 0.000000] Kernel panic - not syncing: Attempted to kill the idle task! >> > > int __meminit vmemmap_populate(struct page *start_page, > unsigned long nr_pages, int node) > { > unsigned long mode_rw; > unsigned long start = (unsigned long)start_page; > unsigned long end = (unsigned long)(start_page + nr_pages); > unsigned long page_size = 1 << mmu_psize_defs[mmu_linear_psize].shift; > > mode_rw = _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_COHERENT | PP_RWXX; > > /* Align to the page size of the linear mapping. */ > start = _ALIGN_DOWN(start, page_size); > > for (; start < end; start += page_size) { > int mapped; > void *p; > > if (vmemmap_populated(start, page_size)) > continue; > > p = vmemmap_alloc_block(page_size, node); > if (!p) > return -ENOMEM; > > pr_debug("vmemmap %08lx allocated at %p, physical %08lx.\n", > start, p, __pa(p)); > > mapped = htab_bolt_mapping(start, start + page_size, > __pa(p), mode_rw, mmu_linear_psize, > mmu_kernel_ssize); > =====> BUG_ON(mapped < 0); > } > > return 0; > } > > Beats me. pseries? Badari has been diddling with the bolted memory code > in git-powerpc... One of the machines is the Power5 and another is PowerMac G5, on which the same kernel panic is seen. -- Thanks & Regards, Kamalesh Babulal, Linux Technology Center, IBM, ISTL. ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [BUG] 2.6.25-rc8-mm1 kernel panic while bootup on powerpc 2008-04-02 7:08 ` Kamalesh Babulal @ 2008-04-02 7:17 ` Michael Ellerman 2008-04-02 17:09 ` Kamalesh Babulal 2008-04-02 19:22 ` Badari Pulavarty 0 siblings, 2 replies; 10+ messages in thread From: Michael Ellerman @ 2008-04-02 7:17 UTC (permalink / raw) To: Kamalesh Babulal Cc: linuxppc-dev, Andrew Morton, Badari Pulavarty, linux-kernel, Balbir Singh [-- Attachment #1: Type: text/plain, Size: 4590 bytes --] On Wed, 2008-04-02 at 12:38 +0530, Kamalesh Babulal wrote: > Andrew Morton wrote: > > On Wed, 02 Apr 2008 11:55:36 +0530 Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> wrote: > > > >> Hi Andrew, > >> > >> The 2.6.25-rc8-mm1 kernel panic's while bootup on the power machine(s). > >> > >> [ 0.000000] ------------[ cut here ]------------ > >> [ 0.000000] kernel BUG at arch/powerpc/mm/init_64.c:240! > >> [ 0.000000] Oops: Exception in kernel mode, sig: 5 [#1] > >> [ 0.000000] SMP NR_CPUS=32 NUMA PowerMac > >> [ 0.000000] Modules linked in: > >> [ 0.000000] NIP: c0000000003d1dcc LR: c0000000003d1dc4 CTR: c00000000002b6ac > >> [ 0.000000] REGS: c00000000049b960 TRAP: 0700 Not tainted (2.6.25-rc8-mm1-autokern1) > >> [ 0.000000] MSR: 9000000000021032 <ME,IR,DR> CR: 44000088 XER: 20000000 > >> [ 0.000000] TASK = c0000000003f9c90[0] 'swapper' THREAD: c000000000498000 CPU: 0 > >> [ 0.000000] GPR00: c0000000003d1dc4 c00000000049bbe0 c0000000004989d0 0000000000000001 > >> [ 0.000000] GPR04: d59aca40f0000000 000000000b000000 0000000000000010 0000000000000000 > >> [ 0.000000] GPR08: 0000000000000004 0000000000000001 c00000027e520800 c0000000004bf0f0 > >> [ 0.000000] GPR12: c0000000004bf020 c0000000003fa900 0000000000000000 0000000000000000 > >> [ 0.000000] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 > >> [ 0.000000] GPR20: 0000000000000000 0000000000000000 0000000000000000 4000000001400000 > >> [ 0.000000] GPR24: 00000000017d64b0 c0000000003d6250 0000000000000000 c000000000504000 > >> [ 0.000000] GPR28: 0000000000000000 cf000000001f8000 0000000001000000 cf00000000000000 > >> [ 0.000000] NIP [c0000000003d1dcc] .vmemmap_populate+0xb8/0xf4 > >> [ 0.000000] LR [c0000000003d1dc4] .vmemmap_populate+0xb0/0xf4 > >> [ 0.000000] Call Trace: > >> [ 0.000000] [c00000000049bbe0] [c0000000003d1dc4] .vmemmap_populate+0xb0/0xf4 (unreliable) > >> [ 0.000000] [c00000000049bc70] [c0000000003d2ee8] .sparse_mem_map_populate+0x38/0x60 > >> [ 0.000000] [c00000000049bd00] [c0000000003c242c] .sparse_early_mem_map_alloc+0x54/0x94 > >> [ 0.000000] [c00000000049bd90] [c0000000003c250c] .sparse_init+0xa0/0x20c > >> [ 0.000000] [c00000000049be50] [c0000000003ab7d0] .setup_arch+0x1ac/0x218 > >> [ 0.000000] [c00000000049bee0] [c0000000003a36ac] .start_kernel+0xe0/0x3fc > >> [ 0.000000] [c00000000049bf90] [c000000000008594] .start_here_common+0x54/0xc0 > >> [ 0.000000] Instruction dump: > >> [ 0.000000] 7fe3fb78 7ca02a14 4082000c 3860fff4 4800003c e92289c8 e96289c0 e9090002 > >> [ 0.000000] e8eb0002 4bc575cd 60000000 78630fe0 <0b030000> 7ffff214 7fbfe840 7fe3fb78 > >> [ 0.000000] ---[ end trace 31fd0ba7d8756001 ]--- > >> [ 0.000000] Kernel panic - not syncing: Attempted to kill the idle task! > >> > > > > int __meminit vmemmap_populate(struct page *start_page, > > unsigned long nr_pages, int node) > > { > > unsigned long mode_rw; > > unsigned long start = (unsigned long)start_page; > > unsigned long end = (unsigned long)(start_page + nr_pages); > > unsigned long page_size = 1 << mmu_psize_defs[mmu_linear_psize].shift; > > > > mode_rw = _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_COHERENT | PP_RWXX; > > > > /* Align to the page size of the linear mapping. */ > > start = _ALIGN_DOWN(start, page_size); > > > > for (; start < end; start += page_size) { > > int mapped; > > void *p; > > > > if (vmemmap_populated(start, page_size)) > > continue; > > > > p = vmemmap_alloc_block(page_size, node); > > if (!p) > > return -ENOMEM; > > > > pr_debug("vmemmap %08lx allocated at %p, physical %08lx.\n", > > start, p, __pa(p)); > > > > mapped = htab_bolt_mapping(start, start + page_size, > > __pa(p), mode_rw, mmu_linear_psize, > > mmu_kernel_ssize); > > =====> BUG_ON(mapped < 0); > > } > > > > return 0; > > } > > > > Beats me. pseries? Badari has been diddling with the bolted memory code > > in git-powerpc... > > One of the machines is the Power5 and another is PowerMac G5, on which the > same kernel panic is seen. Can you enable DEBUG_LOW in arch/powerpc/platforms/pseries/lpar.c, that should show what's happening in hpte_insert(). cheers -- Michael Ellerman OzLabs, IBM Australia Development Lab wwweb: http://michael.ellerman.id.au phone: +61 2 6212 1183 (tie line 70 21183) We do not inherit the earth from our ancestors, we borrow it from our children. - S.M.A.R.T Person [-- Attachment #2: This is a digitally signed message part --] [-- Type: application/pgp-signature, Size: 189 bytes --] ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [BUG] 2.6.25-rc8-mm1 kernel panic while bootup on powerpc 2008-04-02 7:17 ` Michael Ellerman @ 2008-04-02 17:09 ` Kamalesh Babulal 2008-04-02 18:15 ` Badari Pulavarty 2008-04-02 19:22 ` Badari Pulavarty 1 sibling, 1 reply; 10+ messages in thread From: Kamalesh Babulal @ 2008-04-02 17:09 UTC (permalink / raw) To: michael Cc: linuxppc-dev, Andrew Morton, Badari Pulavarty, linux-kernel, Balbir Singh Michael Ellerman wrote: > On Wed, 2008-04-02 at 12:38 +0530, Kamalesh Babulal wrote: >> Andrew Morton wrote: >>> On Wed, 02 Apr 2008 11:55:36 +0530 Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> wrote: >>> >>>> Hi Andrew, >>>> >>>> The 2.6.25-rc8-mm1 kernel panic's while bootup on the power machine(s). >>>> >>>> [ 0.000000] ------------[ cut here ]------------ >>>> [ 0.000000] kernel BUG at arch/powerpc/mm/init_64.c:240! >>>> [ 0.000000] Oops: Exception in kernel mode, sig: 5 [#1] >>>> [ 0.000000] SMP NR_CPUS=32 NUMA PowerMac >>>> [ 0.000000] Modules linked in: >>>> [ 0.000000] NIP: c0000000003d1dcc LR: c0000000003d1dc4 CTR: c00000000002b6ac >>>> [ 0.000000] REGS: c00000000049b960 TRAP: 0700 Not tainted (2.6.25-rc8-mm1-autokern1) >>>> [ 0.000000] MSR: 9000000000021032 <ME,IR,DR> CR: 44000088 XER: 20000000 >>>> [ 0.000000] TASK = c0000000003f9c90[0] 'swapper' THREAD: c000000000498000 CPU: 0 >>>> [ 0.000000] GPR00: c0000000003d1dc4 c00000000049bbe0 c0000000004989d0 0000000000000001 >>>> [ 0.000000] GPR04: d59aca40f0000000 000000000b000000 0000000000000010 0000000000000000 >>>> [ 0.000000] GPR08: 0000000000000004 0000000000000001 c00000027e520800 c0000000004bf0f0 >>>> [ 0.000000] GPR12: c0000000004bf020 c0000000003fa900 0000000000000000 0000000000000000 >>>> [ 0.000000] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 >>>> [ 0.000000] GPR20: 0000000000000000 0000000000000000 0000000000000000 4000000001400000 >>>> [ 0.000000] GPR24: 00000000017d64b0 c0000000003d6250 0000000000000000 c000000000504000 >>>> [ 0.000000] GPR28: 0000000000000000 cf000000001f8000 0000000001000000 cf00000000000000 >>>> [ 0.000000] NIP [c0000000003d1dcc] .vmemmap_populate+0xb8/0xf4 >>>> [ 0.000000] LR [c0000000003d1dc4] .vmemmap_populate+0xb0/0xf4 >>>> [ 0.000000] Call Trace: >>>> [ 0.000000] [c00000000049bbe0] [c0000000003d1dc4] .vmemmap_populate+0xb0/0xf4 (unreliable) >>>> [ 0.000000] [c00000000049bc70] [c0000000003d2ee8] .sparse_mem_map_populate+0x38/0x60 >>>> [ 0.000000] [c00000000049bd00] [c0000000003c242c] .sparse_early_mem_map_alloc+0x54/0x94 >>>> [ 0.000000] [c00000000049bd90] [c0000000003c250c] .sparse_init+0xa0/0x20c >>>> [ 0.000000] [c00000000049be50] [c0000000003ab7d0] .setup_arch+0x1ac/0x218 >>>> [ 0.000000] [c00000000049bee0] [c0000000003a36ac] .start_kernel+0xe0/0x3fc >>>> [ 0.000000] [c00000000049bf90] [c000000000008594] .start_here_common+0x54/0xc0 >>>> [ 0.000000] Instruction dump: >>>> [ 0.000000] 7fe3fb78 7ca02a14 4082000c 3860fff4 4800003c e92289c8 e96289c0 e9090002 >>>> [ 0.000000] e8eb0002 4bc575cd 60000000 78630fe0 <0b030000> 7ffff214 7fbfe840 7fe3fb78 >>>> [ 0.000000] ---[ end trace 31fd0ba7d8756001 ]--- >>>> [ 0.000000] Kernel panic - not syncing: Attempted to kill the idle task! >>>> >>> int __meminit vmemmap_populate(struct page *start_page, >>> unsigned long nr_pages, int node) >>> { >>> unsigned long mode_rw; >>> unsigned long start = (unsigned long)start_page; >>> unsigned long end = (unsigned long)(start_page + nr_pages); >>> unsigned long page_size = 1 << mmu_psize_defs[mmu_linear_psize].shift; >>> >>> mode_rw = _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_COHERENT | PP_RWXX; >>> >>> /* Align to the page size of the linear mapping. */ >>> start = _ALIGN_DOWN(start, page_size); >>> >>> for (; start < end; start += page_size) { >>> int mapped; >>> void *p; >>> >>> if (vmemmap_populated(start, page_size)) >>> continue; >>> >>> p = vmemmap_alloc_block(page_size, node); >>> if (!p) >>> return -ENOMEM; >>> >>> pr_debug("vmemmap %08lx allocated at %p, physical %08lx.\n", >>> start, p, __pa(p)); >>> >>> mapped = htab_bolt_mapping(start, start + page_size, >>> __pa(p), mode_rw, mmu_linear_psize, >>> mmu_kernel_ssize); >>> =====> BUG_ON(mapped < 0); >>> } >>> >>> return 0; >>> } >>> >>> Beats me. pseries? Badari has been diddling with the bolted memory code >>> in git-powerpc... >> One of the machines is the Power5 and another is PowerMac G5, on which the >> same kernel panic is seen. > > Can you enable DEBUG_LOW in arch/powerpc/platforms/pseries/lpar.c, that > should show what's happening in hpte_insert(). > > cheers > Just define DEBUG_LOW did not fetch and debug information, so added some printk to htab_bolt_mapping () and pSeries_lpar_hpte_insert () [boot]0012 Setup Arch htab_bolt_mapping (vstart cf00000000000000, vend cf00000001000000, pstart 3000000,mode 190, psize 4, ssize 0) htab_bolt_mapping: calling c000000000888f00 _hpte_insert(group=252078, va=d59aca40f0000000, pa=0000000003000000, rflags=194, vflags=10, psize=4 ssize=0) htab_bolt_mapping (vstart cf00000000000000, vend cf00000001000000, pstart 4000000,mode 190, psize 4, ssize 0) htab_bolt_mapping: calling c000000000888f00 _hpte_insert(group=252078, va=d59aca40f0000000, pa=0000000004000000, rflags=194, vflags=10, psize=4 ssize=0) htab_bolt_mapping (vstart cf00000000000000, vend cf00000001000000, pstart 5000000,mode 190, psize 4, ssize 0) htab_bolt_mapping: calling c000000000888f00 _hpte_insert(group=252078, va=d59aca40f0000000, pa=0000000005000000, rflags=194, vflags=10, psize=4 ssize=0) htab_bolt_mapping (vstart cf00000000000000, vend cf00000001000000, pstart 6000000,mode 190, psize 4, ssize 0) htab_bolt_mapping: calling c000000000888f00 _hpte_insert(group=252078, va=d59aca40f0000000, pa=0000000006000000, rflags=194, vflags=10, psize=4 ssize=0) htab_bolt_mapping (vstart cf00000000000000, vend cf00000001000000, pstart 8000000,mode 190, psize 4, ssize 0) htab_bolt_mapping: calling c000000000888f00 _hpte_insert(group=252078, va=d59aca40f0000000, pa=0000000008000000, rflags=194, vflags=10, psize=4 ssize=0) htab_bolt_mapping (vstart cf00000000000000, vend cf00000001000000, pstart 9000000,mode 190, psize 4, ssize 0) htab_bolt_mapping: calling c000000000888f00 _hpte_insert(group=252078, va=d59aca40f0000000, pa=0000000009000000, rflags=194, vflags=10, psize=4 ssize=0) htab_bolt_mapping (vstart cf00000000000000, vend cf00000001000000, pstart a000000,mode 190, psize 4, ssize 0) htab_bolt_mapping: calling c000000000888f00 _hpte_insert(group=252078, va=d59aca40f0000000, pa=000000000a000000, rflags=194, vflags=10, psize=4 ssize=0) htab_bolt_mapping (vstart cf00000000000000, vend cf00000001000000, pstart b000000,mode 190, psize 4, ssize 0) htab_bolt_mapping: calling c000000000888f00 _hpte_insert(group=252078, va=d59aca40f0000000, pa=000000000b000000, rflags=194, vflags=10, psize=4 ssize=0) htab_bolt_mapping (vstart cf00000000000000, vend cf00000001000000, pstart c000000,mode 190, psize 4, ssize 0) htab_bolt_mapping: calling c000000000888f00 _hpte_insert(group=252078, va=d59aca40f0000000, pa=000000000c000000, rflags=194, vflags=10, psize=4 ssize=0) ------------[ cut here ]------------ kernel BUG at arch/powerpc/mm/init_64.c:240! Oops: Exception in kernel mode, sig: 5 [#1] SMP NR_CPUS=128 NUMA pSeries Modules linked in: NIP: c000000000774b88 LR: c000000000774b80 CTR: 0000000000000000 REGS: c0000000008f7950 TRAP: 0700 Not tainted (2.6.25-rc8-mm1-autotest) MSR: 8000000000021032 <ME,IR,DR> CR: 24000088 XER: 00000001 TASK = c0000000007dffd0[0] 'swapper' THREAD: c0000000008f4000 CPU: 0 GPR00: c000000000774b80 c0000000008f7bd0 c0000000008f6c00 0000000000000001 GPR04: fffffffffffffffa 000000000000005f 000000000000005e 0000000000000477 GPR08: 00000009b346bb78 8000000006520800 fffffffffffffffa ffffffffffffffff GPR12: 0000000024000082 c0000000007e0980 0000000000000000 c00000000069ab58 GPR16: 4000000001c00000 c0000000006993e8 0000000000000000 00000000002b1000 GPR20: 000000000237b450 c00000000077b450 000000000237b6c0 c00000000077b6c0 GPR24: c00000000069a5a0 0000000002700000 c0000000009b0000 0000000000000000 GPR28: cf000000001f8000 cf00000001000000 0000000001000000 cf00000000000000 NIP [c000000000774b88] .vmemmap_populate+0xbc/0x100 LR [c000000000774b80] .vmemmap_populate+0xb4/0x100 Call Trace: [c0000000008f7bd0] [c000000000774b80] .vmemmap_populate+0xb4/0x100 (unreliable) [c0000000008f7c70] [c0000000007757e4] .sparse_mem_map_populate+0x38/0x5c [c0000000008f7d00] [c000000000762f14] .sparse_early_mem_map_alloc+0x54/0x94 [c0000000008f7d90] [c000000000763348] .sparse_init+0x1e8/0x224 [c0000000008f7e50] [c00000000074f428] .setup_arch+0x1ac/0x218 [c0000000008f7ee0] [c0000000007466bc] .start_kernel+0xe0/0x414 [c0000000008f7f90] [c000000000008594] .start_here_common+0x54/0xc0 Instruction dump: 7fe3fb78 7ca02a14 4082000c 3860fff4 48000040 e9228980 e9628988 e8e90002 e90b0002 4b8b712d 60000000 78630fe0 <0b030000> 7ffff214 7fbdf214 7fbfe040 ---[ end trace 31fd0ba7d8756001 ]--- Kernel panic - not syncing: Attempted to kill the idle task! -- Thanks & Regards, Kamalesh Babulal, Linux Technology Center, IBM, ISTL. ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [BUG] 2.6.25-rc8-mm1 kernel panic while bootup on powerpc 2008-04-02 17:09 ` Kamalesh Babulal @ 2008-04-02 18:15 ` Badari Pulavarty 0 siblings, 0 replies; 10+ messages in thread From: Badari Pulavarty @ 2008-04-02 18:15 UTC (permalink / raw) To: Kamalesh Babulal; +Cc: linuxppc-dev, Andrew Morton, lkml, Balbir Singh On Wed, 2008-04-02 at 22:39 +0530, Kamalesh Babulal wrote: > Michael Ellerman wrote: > > On Wed, 2008-04-02 at 12:38 +0530, Kamalesh Babulal wrote: > >> Andrew Morton wrote: > >>> On Wed, 02 Apr 2008 11:55:36 +0530 Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> wrote: > >>> > >>>> Hi Andrew, > >>>> > >>>> The 2.6.25-rc8-mm1 kernel panic's while bootup on the power machine(s). > >>>> > >>>> [ 0.000000] ------------[ cut here ]------------ > >>>> [ 0.000000] kernel BUG at arch/powerpc/mm/init_64.c:240! > >>>> [ 0.000000] Oops: Exception in kernel mode, sig: 5 [#1] > >>>> [ 0.000000] SMP NR_CPUS=32 NUMA PowerMac > >>>> [ 0.000000] Modules linked in: > >>>> [ 0.000000] NIP: c0000000003d1dcc LR: c0000000003d1dc4 CTR: c00000000002b6ac > >>>> [ 0.000000] REGS: c00000000049b960 TRAP: 0700 Not tainted (2.6.25-rc8-mm1-autokern1) > >>>> [ 0.000000] MSR: 9000000000021032 <ME,IR,DR> CR: 44000088 XER: 20000000 > >>>> [ 0.000000] TASK = c0000000003f9c90[0] 'swapper' THREAD: c000000000498000 CPU: 0 > >>>> [ 0.000000] GPR00: c0000000003d1dc4 c00000000049bbe0 c0000000004989d0 0000000000000001 > >>>> [ 0.000000] GPR04: d59aca40f0000000 000000000b000000 0000000000000010 0000000000000000 > >>>> [ 0.000000] GPR08: 0000000000000004 0000000000000001 c00000027e520800 c0000000004bf0f0 > >>>> [ 0.000000] GPR12: c0000000004bf020 c0000000003fa900 0000000000000000 0000000000000000 > >>>> [ 0.000000] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 > >>>> [ 0.000000] GPR20: 0000000000000000 0000000000000000 0000000000000000 4000000001400000 > >>>> [ 0.000000] GPR24: 00000000017d64b0 c0000000003d6250 0000000000000000 c000000000504000 > >>>> [ 0.000000] GPR28: 0000000000000000 cf000000001f8000 0000000001000000 cf00000000000000 > >>>> [ 0.000000] NIP [c0000000003d1dcc] .vmemmap_populate+0xb8/0xf4 > >>>> [ 0.000000] LR [c0000000003d1dc4] .vmemmap_populate+0xb0/0xf4 > >>>> [ 0.000000] Call Trace: > >>>> [ 0.000000] [c00000000049bbe0] [c0000000003d1dc4] .vmemmap_populate+0xb0/0xf4 (unreliable) > >>>> [ 0.000000] [c00000000049bc70] [c0000000003d2ee8] .sparse_mem_map_populate+0x38/0x60 > >>>> [ 0.000000] [c00000000049bd00] [c0000000003c242c] .sparse_early_mem_map_alloc+0x54/0x94 > >>>> [ 0.000000] [c00000000049bd90] [c0000000003c250c] .sparse_init+0xa0/0x20c > >>>> [ 0.000000] [c00000000049be50] [c0000000003ab7d0] .setup_arch+0x1ac/0x218 > >>>> [ 0.000000] [c00000000049bee0] [c0000000003a36ac] .start_kernel+0xe0/0x3fc > >>>> [ 0.000000] [c00000000049bf90] [c000000000008594] .start_here_common+0x54/0xc0 > >>>> [ 0.000000] Instruction dump: > >>>> [ 0.000000] 7fe3fb78 7ca02a14 4082000c 3860fff4 4800003c e92289c8 e96289c0 e9090002 > >>>> [ 0.000000] e8eb0002 4bc575cd 60000000 78630fe0 <0b030000> 7ffff214 7fbfe840 7fe3fb78 > >>>> [ 0.000000] ---[ end trace 31fd0ba7d8756001 ]--- > >>>> [ 0.000000] Kernel panic - not syncing: Attempted to kill the idle task! > >>>> > >>> int __meminit vmemmap_populate(struct page *start_page, > >>> unsigned long nr_pages, int node) > >>> { > >>> unsigned long mode_rw; > >>> unsigned long start = (unsigned long)start_page; > >>> unsigned long end = (unsigned long)(start_page + nr_pages); > >>> unsigned long page_size = 1 << mmu_psize_defs[mmu_linear_psize].shift; > >>> > >>> mode_rw = _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_COHERENT | PP_RWXX; > >>> > >>> /* Align to the page size of the linear mapping. */ > >>> start = _ALIGN_DOWN(start, page_size); > >>> > >>> for (; start < end; start += page_size) { > >>> int mapped; > >>> void *p; > >>> > >>> if (vmemmap_populated(start, page_size)) > >>> continue; > >>> > >>> p = vmemmap_alloc_block(page_size, node); > >>> if (!p) > >>> return -ENOMEM; > >>> > >>> pr_debug("vmemmap %08lx allocated at %p, physical %08lx.\n", > >>> start, p, __pa(p)); > >>> > >>> mapped = htab_bolt_mapping(start, start + page_size, > >>> __pa(p), mode_rw, mmu_linear_psize, > >>> mmu_kernel_ssize); > >>> =====> BUG_ON(mapped < 0); > >>> } > >>> > >>> return 0; > >>> } > >>> > >>> Beats me. pseries? Badari has been diddling with the bolted memory code > >>> in git-powerpc... > >> One of the machines is the Power5 and another is PowerMac G5, on which the > >> same kernel panic is seen. > > > > Can you enable DEBUG_LOW in arch/powerpc/platforms/pseries/lpar.c, that > > should show what's happening in hpte_insert(). > > > > cheers > > > Just define DEBUG_LOW did not fetch and debug information, so added some printk to > htab_bolt_mapping () and pSeries_lpar_hpte_insert () > > [boot]0012 Setup Arch > htab_bolt_mapping (vstart cf00000000000000, vend cf00000001000000, pstart 3000000,mode 190, psize 4, ssize 0) > htab_bolt_mapping: calling c000000000888f00 > _hpte_insert(group=252078, va=d59aca40f0000000, pa=0000000003000000, rflags=194, vflags=10, psize=4 ssize=0) > htab_bolt_mapping (vstart cf00000000000000, vend cf00000001000000, pstart 4000000,mode 190, psize 4, ssize 0) > htab_bolt_mapping: calling c000000000888f00 > _hpte_insert(group=252078, va=d59aca40f0000000, pa=0000000004000000, rflags=194, vflags=10, psize=4 ssize=0) > htab_bolt_mapping (vstart cf00000000000000, vend cf00000001000000, pstart 5000000,mode 190, psize 4, ssize 0) > htab_bolt_mapping: calling c000000000888f00 > _hpte_insert(group=252078, va=d59aca40f0000000, pa=0000000005000000, rflags=194, vflags=10, psize=4 ssize=0) > htab_bolt_mapping (vstart cf00000000000000, vend cf00000001000000, pstart 6000000,mode 190, psize 4, ssize 0) > htab_bolt_mapping: calling c000000000888f00 > _hpte_insert(group=252078, va=d59aca40f0000000, pa=0000000006000000, rflags=194, vflags=10, psize=4 ssize=0) > htab_bolt_mapping (vstart cf00000000000000, vend cf00000001000000, pstart 8000000,mode 190, psize 4, ssize 0) > htab_bolt_mapping: calling c000000000888f00 > _hpte_insert(group=252078, va=d59aca40f0000000, pa=0000000008000000, rflags=194, vflags=10, psize=4 ssize=0) > htab_bolt_mapping (vstart cf00000000000000, vend cf00000001000000, pstart 9000000,mode 190, psize 4, ssize 0) > htab_bolt_mapping: calling c000000000888f00 > _hpte_insert(group=252078, va=d59aca40f0000000, pa=0000000009000000, rflags=194, vflags=10, psize=4 ssize=0) > htab_bolt_mapping (vstart cf00000000000000, vend cf00000001000000, pstart a000000,mode 190, psize 4, ssize 0) > htab_bolt_mapping: calling c000000000888f00 > _hpte_insert(group=252078, va=d59aca40f0000000, pa=000000000a000000, rflags=194, vflags=10, psize=4 ssize=0) > htab_bolt_mapping (vstart cf00000000000000, vend cf00000001000000, pstart b000000,mode 190, psize 4, ssize 0) > htab_bolt_mapping: calling c000000000888f00 > _hpte_insert(group=252078, va=d59aca40f0000000, pa=000000000b000000, rflags=194, vflags=10, psize=4 ssize=0) > htab_bolt_mapping (vstart cf00000000000000, vend cf00000001000000, pstart c000000,mode 190, psize 4, ssize 0) > htab_bolt_mapping: calling c000000000888f00 > _hpte_insert(group=252078, va=d59aca40f0000000, pa=000000000c000000, rflags=194, vflags=10, psize=4 ssize=0) > > ------------[ cut here ]------------ > kernel BUG at arch/powerpc/mm/init_64.c:240! > Oops: Exception in kernel mode, sig: 5 [#1] > SMP NR_CPUS=128 NUMA pSeries > Modules linked in: > NIP: c000000000774b88 LR: c000000000774b80 CTR: 0000000000000000 > REGS: c0000000008f7950 TRAP: 0700 Not tainted (2.6.25-rc8-mm1-autotest) > MSR: 8000000000021032 <ME,IR,DR> CR: 24000088 XER: 00000001 > TASK = c0000000007dffd0[0] 'swapper' THREAD: c0000000008f4000 CPU: 0 > > GPR00: c000000000774b80 c0000000008f7bd0 c0000000008f6c00 0000000000000001 > GPR04: fffffffffffffffa 000000000000005f 000000000000005e 0000000000000477 > GPR08: 00000009b346bb78 8000000006520800 fffffffffffffffa ffffffffffffffff > GPR12: 0000000024000082 c0000000007e0980 0000000000000000 c00000000069ab58 > GPR16: 4000000001c00000 c0000000006993e8 0000000000000000 00000000002b1000 > GPR20: 000000000237b450 c00000000077b450 000000000237b6c0 c00000000077b6c0 > GPR24: c00000000069a5a0 0000000002700000 c0000000009b0000 0000000000000000 > GPR28: cf000000001f8000 cf00000001000000 0000000001000000 cf00000000000000 > > NIP [c000000000774b88] .vmemmap_populate+0xbc/0x100 > LR [c000000000774b80] .vmemmap_populate+0xb4/0x100 > > Call Trace: > [c0000000008f7bd0] [c000000000774b80] .vmemmap_populate+0xb4/0x100 (unreliable) > [c0000000008f7c70] [c0000000007757e4] .sparse_mem_map_populate+0x38/0x5c > [c0000000008f7d00] [c000000000762f14] .sparse_early_mem_map_alloc+0x54/0x94 > [c0000000008f7d90] [c000000000763348] .sparse_init+0x1e8/0x224 > [c0000000008f7e50] [c00000000074f428] .setup_arch+0x1ac/0x218 > [c0000000008f7ee0] [c0000000007466bc] .start_kernel+0xe0/0x414 > [c0000000008f7f90] [c000000000008594] .start_here_common+0x54/0xc0 > > Instruction dump: > 7fe3fb78 7ca02a14 4082000c 3860fff4 48000040 e9228980 e9628988 e8e90002 > e90b0002 4b8b712d 60000000 78630fe0 <0b030000> 7ffff214 7fbdf214 7fbfe040 > ---[ end trace 31fd0ba7d8756001 ]--- > Kernel panic - not syncing: Attempted to kill the idle task! > Kamalesh, With your config, I am able to reproduce the problem. I haven't touched that part of code. I can take a look at it. It looks like we are trying to create mapping for same "vaddr" multiple times and we get failures after few creates. I am not sure why we are trying to create so many times with same vaddr. Thanks, Badari ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [BUG] 2.6.25-rc8-mm1 kernel panic while bootup on powerpc 2008-04-02 7:17 ` Michael Ellerman 2008-04-02 17:09 ` Kamalesh Babulal @ 2008-04-02 19:22 ` Badari Pulavarty 2008-04-02 21:57 ` Yinghai Lu 2008-04-02 22:24 ` Yinghai Lu 1 sibling, 2 replies; 10+ messages in thread From: Badari Pulavarty @ 2008-04-02 19:22 UTC (permalink / raw) To: michael, yhlu.kernel Cc: linuxppc-dev, Andrew Morton, Balbir Singh, lkml, Kamalesh Babulal On Wed, 2008-04-02 at 18:17 +1100, Michael Ellerman wrote: > On Wed, 2008-04-02 at 12:38 +0530, Kamalesh Babulal wrote: > > Andrew Morton wrote: > > > On Wed, 02 Apr 2008 11:55:36 +0530 Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> wrote: > > > > > >> Hi Andrew, > > >> > > >> The 2.6.25-rc8-mm1 kernel panic's while bootup on the power machine(s). > > >> > > >> [ 0.000000] ------------[ cut here ]------------ > > >> [ 0.000000] kernel BUG at arch/powerpc/mm/init_64.c:240! > > >> [ 0.000000] Oops: Exception in kernel mode, sig: 5 [#1] > > >> [ 0.000000] SMP NR_CPUS=32 NUMA PowerMac > > >> [ 0.000000] Modules linked in: > > >> [ 0.000000] NIP: c0000000003d1dcc LR: c0000000003d1dc4 CTR: c00000000002b6ac > > >> [ 0.000000] REGS: c00000000049b960 TRAP: 0700 Not tainted (2.6.25-rc8-mm1-autokern1) > > >> [ 0.000000] MSR: 9000000000021032 <ME,IR,DR> CR: 44000088 XER: 20000000 > > >> [ 0.000000] TASK = c0000000003f9c90[0] 'swapper' THREAD: c000000000498000 CPU: 0 > > >> [ 0.000000] GPR00: c0000000003d1dc4 c00000000049bbe0 c0000000004989d0 0000000000000001 > > >> [ 0.000000] GPR04: d59aca40f0000000 000000000b000000 0000000000000010 0000000000000000 > > >> [ 0.000000] GPR08: 0000000000000004 0000000000000001 c00000027e520800 c0000000004bf0f0 > > >> [ 0.000000] GPR12: c0000000004bf020 c0000000003fa900 0000000000000000 0000000000000000 > > >> [ 0.000000] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 > > >> [ 0.000000] GPR20: 0000000000000000 0000000000000000 0000000000000000 4000000001400000 > > >> [ 0.000000] GPR24: 00000000017d64b0 c0000000003d6250 0000000000000000 c000000000504000 > > >> [ 0.000000] GPR28: 0000000000000000 cf000000001f8000 0000000001000000 cf00000000000000 > > >> [ 0.000000] NIP [c0000000003d1dcc] .vmemmap_populate+0xb8/0xf4 > > >> [ 0.000000] LR [c0000000003d1dc4] .vmemmap_populate+0xb0/0xf4 > > >> [ 0.000000] Call Trace: > > >> [ 0.000000] [c00000000049bbe0] [c0000000003d1dc4] .vmemmap_populate+0xb0/0xf4 (unreliable) > > >> [ 0.000000] [c00000000049bc70] [c0000000003d2ee8] .sparse_mem_map_populate+0x38/0x60 > > >> [ 0.000000] [c00000000049bd00] [c0000000003c242c] .sparse_early_mem_map_alloc+0x54/0x94 > > >> [ 0.000000] [c00000000049bd90] [c0000000003c250c] .sparse_init+0xa0/0x20c > > >> [ 0.000000] [c00000000049be50] [c0000000003ab7d0] .setup_arch+0x1ac/0x218 > > >> [ 0.000000] [c00000000049bee0] [c0000000003a36ac] .start_kernel+0xe0/0x3fc > > >> [ 0.000000] [c00000000049bf90] [c000000000008594] .start_here_common+0x54/0xc0 > > >> [ 0.000000] Instruction dump: > > >> [ 0.000000] 7fe3fb78 7ca02a14 4082000c 3860fff4 4800003c e92289c8 e96289c0 e9090002 > > >> [ 0.000000] e8eb0002 4bc575cd 60000000 78630fe0 <0b030000> 7ffff214 7fbfe840 7fe3fb78 > > >> [ 0.000000] ---[ end trace 31fd0ba7d8756001 ]--- > > >> [ 0.000000] Kernel panic - not syncing: Attempted to kill the idle task! > > >> > > > > > > int __meminit vmemmap_populate(struct page *start_page, > > > unsigned long nr_pages, int node) > > > { > > > unsigned long mode_rw; > > > unsigned long start = (unsigned long)start_page; > > > unsigned long end = (unsigned long)(start_page + nr_pages); > > > unsigned long page_size = 1 << mmu_psize_defs[mmu_linear_psize].shift; > > > > > > mode_rw = _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_COHERENT | PP_RWXX; > > > > > > /* Align to the page size of the linear mapping. */ > > > start = _ALIGN_DOWN(start, page_size); > > > > > > for (; start < end; start += page_size) { > > > int mapped; > > > void *p; > > > > > > if (vmemmap_populated(start, page_size)) > > > continue; > > > > > > p = vmemmap_alloc_block(page_size, node); > > > if (!p) > > > return -ENOMEM; > > > > > > pr_debug("vmemmap %08lx allocated at %p, physical %08lx.\n", > > > start, p, __pa(p)); > > > > > > mapped = htab_bolt_mapping(start, start + page_size, > > > __pa(p), mode_rw, mmu_linear_psize, > > > mmu_kernel_ssize); > > > =====> BUG_ON(mapped < 0); > > > } > > > > > > return 0; > > > } > > > > > > Beats me. pseries? Badari has been diddling with the bolted memory code > > > in git-powerpc... > > > > One of the machines is the Power5 and another is PowerMac G5, on which the > > same kernel panic is seen. > > Can you enable DEBUG_LOW in arch/powerpc/platforms/pseries/lpar.c, that > should show what's happening in hpte_insert(). > > cheers > Okay. Found it. Root cause is: mm-make-mem_map-allocation-continuous.patch and its friends in -mm. You have to call sparse_init_one_section() on each pmap and usemap as we allocate - since valid_section() depends on it (which is needed by vmemmap_populate() to check if the section is populated or not). On ppc, we need to call htab_bolted_mapping() on each section and we need to skip existing sections. These patches tried to group all allocations together and then later calls sparse_init_one_section() - which is not good :( Please let me know, if its doesn't make sense - I will try to explain better :) Thanks, Badari ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [BUG] 2.6.25-rc8-mm1 kernel panic while bootup on powerpc 2008-04-02 19:22 ` Badari Pulavarty @ 2008-04-02 21:57 ` Yinghai Lu 2008-04-02 22:24 ` Yinghai Lu 1 sibling, 0 replies; 10+ messages in thread From: Yinghai Lu @ 2008-04-02 21:57 UTC (permalink / raw) To: Badari Pulavarty Cc: lkml, Kamalesh Babulal, linuxppc-dev, Andrew Morton, Balbir Singh On Wed, Apr 2, 2008 at 12:22 PM, Badari Pulavarty <pbadari@us.ibm.com> wrote: > > On Wed, 2008-04-02 at 18:17 +1100, Michael Ellerman wrote: > > On Wed, 2008-04-02 at 12:38 +0530, Kamalesh Babulal wrote: > > > Andrew Morton wrote: > > > > On Wed, 02 Apr 2008 11:55:36 +0530 Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> wrote: > > > > > > > >> Hi Andrew, > > > >> > > > >> The 2.6.25-rc8-mm1 kernel panic's while bootup on the power machine(s). > > > >> > > > >> [ 0.000000] ------------[ cut here ]------------ > > > >> [ 0.000000] kernel BUG at arch/powerpc/mm/init_64.c:240! > > > >> [ 0.000000] Oops: Exception in kernel mode, sig: 5 [#1] > > > >> [ 0.000000] SMP NR_CPUS=32 NUMA PowerMac > > > >> [ 0.000000] Modules linked in: > > > >> [ 0.000000] NIP: c0000000003d1dcc LR: c0000000003d1dc4 CTR: c00000000002b6ac > > > >> [ 0.000000] REGS: c00000000049b960 TRAP: 0700 Not tainted (2.6.25-rc8-mm1-autokern1) > > > >> [ 0.000000] MSR: 9000000000021032 <ME,IR,DR> CR: 44000088 XER: 20000000 > > > >> [ 0.000000] TASK = c0000000003f9c90[0] 'swapper' THREAD: c000000000498000 CPU: 0 > > > >> [ 0.000000] GPR00: c0000000003d1dc4 c00000000049bbe0 c0000000004989d0 0000000000000001 > > > >> [ 0.000000] GPR04: d59aca40f0000000 000000000b000000 0000000000000010 0000000000000000 > > > >> [ 0.000000] GPR08: 0000000000000004 0000000000000001 c00000027e520800 c0000000004bf0f0 > > > >> [ 0.000000] GPR12: c0000000004bf020 c0000000003fa900 0000000000000000 0000000000000000 > > > >> [ 0.000000] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 > > > >> [ 0.000000] GPR20: 0000000000000000 0000000000000000 0000000000000000 4000000001400000 > > > >> [ 0.000000] GPR24: 00000000017d64b0 c0000000003d6250 0000000000000000 c000000000504000 > > > >> [ 0.000000] GPR28: 0000000000000000 cf000000001f8000 0000000001000000 cf00000000000000 > > > >> [ 0.000000] NIP [c0000000003d1dcc] .vmemmap_populate+0xb8/0xf4 > > > >> [ 0.000000] LR [c0000000003d1dc4] .vmemmap_populate+0xb0/0xf4 > > > >> [ 0.000000] Call Trace: > > > >> [ 0.000000] [c00000000049bbe0] [c0000000003d1dc4] .vmemmap_populate+0xb0/0xf4 (unreliable) > > > >> [ 0.000000] [c00000000049bc70] [c0000000003d2ee8] .sparse_mem_map_populate+0x38/0x60 > > > >> [ 0.000000] [c00000000049bd00] [c0000000003c242c] .sparse_early_mem_map_alloc+0x54/0x94 > > > >> [ 0.000000] [c00000000049bd90] [c0000000003c250c] .sparse_init+0xa0/0x20c > > > >> [ 0.000000] [c00000000049be50] [c0000000003ab7d0] .setup_arch+0x1ac/0x218 > > > >> [ 0.000000] [c00000000049bee0] [c0000000003a36ac] .start_kernel+0xe0/0x3fc > > > >> [ 0.000000] [c00000000049bf90] [c000000000008594] .start_here_common+0x54/0xc0 > > > >> [ 0.000000] Instruction dump: > > > >> [ 0.000000] 7fe3fb78 7ca02a14 4082000c 3860fff4 4800003c e92289c8 e96289c0 e9090002 > > > >> [ 0.000000] e8eb0002 4bc575cd 60000000 78630fe0 <0b030000> 7ffff214 7fbfe840 7fe3fb78 > > > >> [ 0.000000] ---[ end trace 31fd0ba7d8756001 ]--- > > > >> [ 0.000000] Kernel panic - not syncing: Attempted to kill the idle task! > > > >> > > > > > > > > int __meminit vmemmap_populate(struct page *start_page, > > > > unsigned long nr_pages, int node) > > > > { > > > > unsigned long mode_rw; > > > > unsigned long start = (unsigned long)start_page; > > > > unsigned long end = (unsigned long)(start_page + nr_pages); > > > > unsigned long page_size = 1 << mmu_psize_defs[mmu_linear_psize].shift; > > > > > > > > mode_rw = _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_COHERENT | PP_RWXX; > > > > > > > > /* Align to the page size of the linear mapping. */ > > > > start = _ALIGN_DOWN(start, page_size); > > > > > > > > for (; start < end; start += page_size) { > > > > int mapped; > > > > void *p; > > > > > > > > if (vmemmap_populated(start, page_size)) > > > > continue; > > > > > > > > p = vmemmap_alloc_block(page_size, node); > > > > if (!p) > > > > return -ENOMEM; > > > > > > > > pr_debug("vmemmap %08lx allocated at %p, physical %08lx.\n", > > > > start, p, __pa(p)); > > > > > > > > mapped = htab_bolt_mapping(start, start + page_size, > > > > __pa(p), mode_rw, mmu_linear_psize, > > > > mmu_kernel_ssize); > > > > =====> BUG_ON(mapped < 0); > > > > } > > > > > > > > return 0; > > > > } > > > > > > > > Beats me. pseries? Badari has been diddling with the bolted memory code > > > > in git-powerpc... > > > > > > One of the machines is the Power5 and another is PowerMac G5, on which the > > > same kernel panic is seen. > > > > Can you enable DEBUG_LOW in arch/powerpc/platforms/pseries/lpar.c, that > > should show what's happening in hpte_insert(). > > > > cheers > > > > Okay. Found it. > > Root cause is: > > mm-make-mem_map-allocation-continuous.patch > and its friends in -mm. > > You have to call sparse_init_one_section() on each pmap and usemap > as we allocate - since valid_section() depends on it (which is needed > by vmemmap_populate() to check if the section is populated or not). > On ppc, we need to call htab_bolted_mapping() on each section and > we need to skip existing sections. > > These patches tried to group all allocations together and then later > calls sparse_init_one_section() - which is not good :( > will send you patch workaround it... YH ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [BUG] 2.6.25-rc8-mm1 kernel panic while bootup on powerpc 2008-04-02 19:22 ` Badari Pulavarty 2008-04-02 21:57 ` Yinghai Lu @ 2008-04-02 22:24 ` Yinghai Lu 1 sibling, 0 replies; 10+ messages in thread From: Yinghai Lu @ 2008-04-02 22:24 UTC (permalink / raw) To: Badari Pulavarty Cc: lkml, Kamalesh Babulal, linuxppc-dev, Andrew Morton, Balbir Singh On Wed, Apr 2, 2008 at 12:22 PM, Badari Pulavarty <pbadari@us.ibm.com> wrote: > > On Wed, 2008-04-02 at 18:17 +1100, Michael Ellerman wrote: > > On Wed, 2008-04-02 at 12:38 +0530, Kamalesh Babulal wrote: > > > Andrew Morton wrote: > > > > On Wed, 02 Apr 2008 11:55:36 +0530 Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> wrote: > > > > > > > >> Hi Andrew, > > > >> > > > >> The 2.6.25-rc8-mm1 kernel panic's while bootup on the power machine(s). > > > >> > > > >> [ 0.000000] ------------[ cut here ]------------ > > > >> [ 0.000000] kernel BUG at arch/powerpc/mm/init_64.c:240! > > > >> [ 0.000000] Oops: Exception in kernel mode, sig: 5 [#1] > > > >> [ 0.000000] SMP NR_CPUS=32 NUMA PowerMac > > > >> [ 0.000000] Modules linked in: > > > >> [ 0.000000] NIP: c0000000003d1dcc LR: c0000000003d1dc4 CTR: c00000000002b6ac > > > >> [ 0.000000] REGS: c00000000049b960 TRAP: 0700 Not tainted (2.6.25-rc8-mm1-autokern1) > > > >> [ 0.000000] MSR: 9000000000021032 <ME,IR,DR> CR: 44000088 XER: 20000000 > > > >> [ 0.000000] TASK = c0000000003f9c90[0] 'swapper' THREAD: c000000000498000 CPU: 0 > > > >> [ 0.000000] GPR00: c0000000003d1dc4 c00000000049bbe0 c0000000004989d0 0000000000000001 > > > >> [ 0.000000] GPR04: d59aca40f0000000 000000000b000000 0000000000000010 0000000000000000 > > > >> [ 0.000000] GPR08: 0000000000000004 0000000000000001 c00000027e520800 c0000000004bf0f0 > > > >> [ 0.000000] GPR12: c0000000004bf020 c0000000003fa900 0000000000000000 0000000000000000 > > > >> [ 0.000000] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 > > > >> [ 0.000000] GPR20: 0000000000000000 0000000000000000 0000000000000000 4000000001400000 > > > >> [ 0.000000] GPR24: 00000000017d64b0 c0000000003d6250 0000000000000000 c000000000504000 > > > >> [ 0.000000] GPR28: 0000000000000000 cf000000001f8000 0000000001000000 cf00000000000000 > > > >> [ 0.000000] NIP [c0000000003d1dcc] .vmemmap_populate+0xb8/0xf4 > > > >> [ 0.000000] LR [c0000000003d1dc4] .vmemmap_populate+0xb0/0xf4 > > > >> [ 0.000000] Call Trace: > > > >> [ 0.000000] [c00000000049bbe0] [c0000000003d1dc4] .vmemmap_populate+0xb0/0xf4 (unreliable) > > > >> [ 0.000000] [c00000000049bc70] [c0000000003d2ee8] .sparse_mem_map_populate+0x38/0x60 > > > >> [ 0.000000] [c00000000049bd00] [c0000000003c242c] .sparse_early_mem_map_alloc+0x54/0x94 > > > >> [ 0.000000] [c00000000049bd90] [c0000000003c250c] .sparse_init+0xa0/0x20c > > > >> [ 0.000000] [c00000000049be50] [c0000000003ab7d0] .setup_arch+0x1ac/0x218 > > > >> [ 0.000000] [c00000000049bee0] [c0000000003a36ac] .start_kernel+0xe0/0x3fc > > > >> [ 0.000000] [c00000000049bf90] [c000000000008594] .start_here_common+0x54/0xc0 > > > >> [ 0.000000] Instruction dump: > > > >> [ 0.000000] 7fe3fb78 7ca02a14 4082000c 3860fff4 4800003c e92289c8 e96289c0 e9090002 > > > >> [ 0.000000] e8eb0002 4bc575cd 60000000 78630fe0 <0b030000> 7ffff214 7fbfe840 7fe3fb78 > > > >> [ 0.000000] ---[ end trace 31fd0ba7d8756001 ]--- > > > >> [ 0.000000] Kernel panic - not syncing: Attempted to kill the idle task! > > > >> > > > > > > > > int __meminit vmemmap_populate(struct page *start_page, > > > > unsigned long nr_pages, int node) > > > > { > > > > unsigned long mode_rw; > > > > unsigned long start = (unsigned long)start_page; > > > > unsigned long end = (unsigned long)(start_page + nr_pages); > > > > unsigned long page_size = 1 << mmu_psize_defs[mmu_linear_psize].shift; > > > > > > > > mode_rw = _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_COHERENT | PP_RWXX; > > > > > > > > /* Align to the page size of the linear mapping. */ > > > > start = _ALIGN_DOWN(start, page_size); > > > > > > > > for (; start < end; start += page_size) { > > > > int mapped; > > > > void *p; > > > > > > > > if (vmemmap_populated(start, page_size)) > > > > continue; > > > > > > > > p = vmemmap_alloc_block(page_size, node); > > > > if (!p) > > > > return -ENOMEM; > > > > > > > > pr_debug("vmemmap %08lx allocated at %p, physical %08lx.\n", > > > > start, p, __pa(p)); > > > > > > > > mapped = htab_bolt_mapping(start, start + page_size, > > > > __pa(p), mode_rw, mmu_linear_psize, > > > > mmu_kernel_ssize); > > > > =====> BUG_ON(mapped < 0); > > > > } > > > > > > > > return 0; > > > > } > > > > > > > > Beats me. pseries? Badari has been diddling with the bolted memory code > > > > in git-powerpc... > > > > > > One of the machines is the Power5 and another is PowerMac G5, on which the > > > same kernel panic is seen. > > > > Can you enable DEBUG_LOW in arch/powerpc/platforms/pseries/lpar.c, that > > should show what's happening in hpte_insert(). > > > > cheers > > > > Okay. Found it. > > Root cause is: > > mm-make-mem_map-allocation-continuous.patch > and its friends in -mm. > > You have to call sparse_init_one_section() on each pmap and usemap > as we allocate - since valid_section() depends on it (which is needed > by vmemmap_populate() to check if the section is populated or not). > On ppc, we need to call htab_bolted_mapping() on each section and > we need to skip existing sections. > > These patches tried to group all allocations together and then later > calls sparse_init_one_section() - which is not good :( > http://lkml.org/lkml/2008/4/2/592 Thanks YH ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [BUG] 2.6.25-rc8-mm1 kernel panic while bootup on powerpc 2008-04-02 6:39 ` Andrew Morton 2008-04-02 7:08 ` Kamalesh Babulal @ 2008-04-04 9:24 ` Andy Whitcroft 1 sibling, 0 replies; 10+ messages in thread From: Andy Whitcroft @ 2008-04-04 9:24 UTC (permalink / raw) To: Andrew Morton Cc: linuxppc-dev, Balbir Singh, Badari Pulavarty, linux-kernel, Kamalesh Babulal On Tue, Apr 01, 2008 at 11:39:09PM -0700, Andrew Morton wrote: > On Wed, 02 Apr 2008 11:55:36 +0530 Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> wrote: > > > Hi Andrew, > > > > The 2.6.25-rc8-mm1 kernel panic's while bootup on the power machine(s). > > > > [ 0.000000] ------------[ cut here ]------------ > > [ 0.000000] kernel BUG at arch/powerpc/mm/init_64.c:240! > > [ 0.000000] Oops: Exception in kernel mode, sig: 5 [#1] > > [ 0.000000] SMP NR_CPUS=32 NUMA PowerMac > > [ 0.000000] Modules linked in: > > [ 0.000000] NIP: c0000000003d1dcc LR: c0000000003d1dc4 CTR: c00000000002b6ac > > [ 0.000000] REGS: c00000000049b960 TRAP: 0700 Not tainted (2.6.25-rc8-mm1-autokern1) > > [ 0.000000] MSR: 9000000000021032 <ME,IR,DR> CR: 44000088 XER: 20000000 > > [ 0.000000] TASK = c0000000003f9c90[0] 'swapper' THREAD: c000000000498000 CPU: 0 > > [ 0.000000] GPR00: c0000000003d1dc4 c00000000049bbe0 c0000000004989d0 0000000000000001 > > [ 0.000000] GPR04: d59aca40f0000000 000000000b000000 0000000000000010 0000000000000000 > > [ 0.000000] GPR08: 0000000000000004 0000000000000001 c00000027e520800 c0000000004bf0f0 > > [ 0.000000] GPR12: c0000000004bf020 c0000000003fa900 0000000000000000 0000000000000000 > > [ 0.000000] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 > > [ 0.000000] GPR20: 0000000000000000 0000000000000000 0000000000000000 4000000001400000 > > [ 0.000000] GPR24: 00000000017d64b0 c0000000003d6250 0000000000000000 c000000000504000 > > [ 0.000000] GPR28: 0000000000000000 cf000000001f8000 0000000001000000 cf00000000000000 > > [ 0.000000] NIP [c0000000003d1dcc] .vmemmap_populate+0xb8/0xf4 > > [ 0.000000] LR [c0000000003d1dc4] .vmemmap_populate+0xb0/0xf4 > > [ 0.000000] Call Trace: > > [ 0.000000] [c00000000049bbe0] [c0000000003d1dc4] .vmemmap_populate+0xb0/0xf4 (unreliable) > > [ 0.000000] [c00000000049bc70] [c0000000003d2ee8] .sparse_mem_map_populate+0x38/0x60 > > [ 0.000000] [c00000000049bd00] [c0000000003c242c] .sparse_early_mem_map_alloc+0x54/0x94 > > [ 0.000000] [c00000000049bd90] [c0000000003c250c] .sparse_init+0xa0/0x20c > > [ 0.000000] [c00000000049be50] [c0000000003ab7d0] .setup_arch+0x1ac/0x218 > > [ 0.000000] [c00000000049bee0] [c0000000003a36ac] .start_kernel+0xe0/0x3fc > > [ 0.000000] [c00000000049bf90] [c000000000008594] .start_here_common+0x54/0xc0 > > [ 0.000000] Instruction dump: > > [ 0.000000] 7fe3fb78 7ca02a14 4082000c 3860fff4 4800003c e92289c8 e96289c0 e9090002 > > [ 0.000000] e8eb0002 4bc575cd 60000000 78630fe0 <0b030000> 7ffff214 7fbfe840 7fe3fb78 > > [ 0.000000] ---[ end trace 31fd0ba7d8756001 ]--- > > [ 0.000000] Kernel panic - not syncing: Attempted to kill the idle task! > > > > int __meminit vmemmap_populate(struct page *start_page, > unsigned long nr_pages, int node) > { > unsigned long mode_rw; > unsigned long start = (unsigned long)start_page; > unsigned long end = (unsigned long)(start_page + nr_pages); > unsigned long page_size = 1 << mmu_psize_defs[mmu_linear_psize].shift; > > mode_rw = _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_COHERENT | PP_RWXX; > > /* Align to the page size of the linear mapping. */ > start = _ALIGN_DOWN(start, page_size); > > for (; start < end; start += page_size) { > int mapped; > void *p; > > if (vmemmap_populated(start, page_size)) > continue; > > p = vmemmap_alloc_block(page_size, node); > if (!p) > return -ENOMEM; > > pr_debug("vmemmap %08lx allocated at %p, physical %08lx.\n", > start, p, __pa(p)); > > mapped = htab_bolt_mapping(start, start + page_size, > __pa(p), mode_rw, mmu_linear_psize, > mmu_kernel_ssize); > =====> BUG_ON(mapped < 0); > } > > return 0; > } > > Beats me. pseries? Badari has been diddling with the bolted memory code > in git-powerpc... It does look like this is resolved with the patch below, if my testing is to be believed (results out on TKO): [PATCH] mm: allocate usemap at first instead of mem_map in sparse_init From: Yinghai Lu <yhlu.kernel@gmail.com> Andrew, I believe you just sucked that up into -mm. -apw ^ permalink raw reply [flat|nested] 10+ messages in thread
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[not found] <20080401213214.8fbb6d6b.akpm@linux-foundation.org>
2008-04-02 6:25 ` [BUG] 2.6.25-rc8-mm1 kernel panic while bootup on powerpc Kamalesh Babulal
2008-04-02 6:39 ` Andrew Morton
2008-04-02 7:08 ` Kamalesh Babulal
2008-04-02 7:17 ` Michael Ellerman
2008-04-02 17:09 ` Kamalesh Babulal
2008-04-02 18:15 ` Badari Pulavarty
2008-04-02 19:22 ` Badari Pulavarty
2008-04-02 21:57 ` Yinghai Lu
2008-04-02 22:24 ` Yinghai Lu
2008-04-04 9:24 ` Andy Whitcroft
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