Re: PANIC: 2.6.21-rc7-mm2, Kernel access of bad area, sig: 11
On Sat, 28 Apr 2007, William Heimbigner wrote: On Sat, 28 Apr 2007, Andrew Morton wrote: On Sat, 28 Apr 2007 21:40:19 + (GMT) William Heimbigner <[EMAIL PROTECTED]> wrote: > This bug occurs in linux-2.6.21-rc7-mm2, and does not occur in > 2.6.21-rc7 > ARCH is powerpc > > dmesg output, captured via netconsole: > [0.00] Using PowerMac machine description > [0.00] Total memory = 128MB; using 256kB for hash table (at > c7fc) > [0.00] Linux version 2.6.21-rc7-mm2 ([EMAIL PROTECTED]) (gcc version > 4.1.1 (Gentoo 4.1.1-r3)) #3 SMP PREEMPT Sat Apr 28 14:29:54 CDT 2007 > [0.00] Found UniNorth memory controller & host bridge @ > 0xf800 revision: 0xc0 > [0.00] Mapped at 0xfdfc > [0.00] Found a Pangea mac-io controller, rev: 0, mapped at > 0xfdf4 > [0.00] PowerMac motherboard: iMac "Flower Power" It ran OK on my G5. Can you send the config please? grep -v "is not set" .config: # # Automatically generated make config: don't edit # Linux kernel version: 2.6.21-rc7-mm2 # Sat Apr 28 14:04:08 2007 # CONFIG_PPC_PM_NEEDS_RTC_LIB=y CONFIG_PPC32=y CONFIG_PPC_MERGE=y CONFIG_MMU=y CONFIG_GENERIC_HARDIRQS=y CONFIG_IRQ_PER_CPU=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_PPC=y CONFIG_EARLY_PRINTK=y CONFIG_GENERIC_NVRAM=y CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y CONFIG_ARCH_MAY_HAVE_PC_FDC=y CONFIG_PPC_OF=y CONFIG_PPC_UDBG_16550=y CONFIG_GENERIC_TBSYNC=y CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y # # Processor support # CONFIG_CLASSIC32=y CONFIG_6xx=y CONFIG_PPC_FPU=y CONFIG_ALTIVEC=y CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y CONFIG_SMP=y CONFIG_NR_CPUS=2 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" # # Code maturity level options # CONFIG_EXPERIMENTAL=y CONFIG_LOCK_KERNEL=y CONFIG_INIT_ENV_ARG_LIMIT=32 # # General setup # CONFIG_LOCALVERSION="" CONFIG_SWAP=y CONFIG_SWAP_PREFETCH=y CONFIG_SYSVIPC=y CONFIG_IPC_NS=y CONFIG_SYSVIPC_SYSCTL=y CONFIG_POSIX_MQUEUE=y CONFIG_BSD_PROCESS_ACCT=y CONFIG_BSD_PROCESS_ACCT_V3=y CONFIG_AUDIT=y CONFIG_AUDITSYSCALL=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y CONFIG_SYSFS_DEPRECATED=y CONFIG_BLK_DEV_INITRD=y CONFIG_INITRAMFS_SOURCE="" CONFIG_SYSCTL=y CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_ANON_INODES=y CONFIG_EPOLL=y CONFIG_SIGNALFD=y CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_VM_EVENT_COUNTERS=y CONFIG_PROC_SMAPS=y CONFIG_PROC_CLEAR_REFS=y CONFIG_PROC_PAGEMAP=y CONFIG_PROC_KPAGEMAP=y CONFIG_SLUB=y CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 # # Loadable module support # CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_MODULE_FORCE_UNLOAD=y CONFIG_MODVERSIONS=y CONFIG_MODULE_SRCVERSION_ALL=y CONFIG_KMOD=y CONFIG_STOP_MACHINE=y # # Block layer # CONFIG_BLOCK=y # # IO Schedulers # CONFIG_IOSCHED_NOOP=y CONFIG_IOSCHED_AS=y CONFIG_IOSCHED_DEADLINE=y CONFIG_IOSCHED_CFQ=y CONFIG_DEFAULT_CFQ=y CONFIG_DEFAULT_IOSCHED="cfq" # # Platform support # CONFIG_PPC_MULTIPLATFORM=y CONFIG_PPC_CHRP=y CONFIG_PPC_PMAC=y CONFIG_PPC_NATIVE=y CONFIG_MPIC=y CONFIG_PPC_I8259=y CONFIG_PPC_RTAS=y CONFIG_RTAS_PROC=y CONFIG_PPC_MPC106=y # # CPU Frequency support # CONFIG_CPU_FREQ=y CONFIG_CPU_FREQ_TABLE=y CONFIG_CPU_FREQ_STAT=y CONFIG_CPU_FREQ_STAT_DETAILS=y CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y CONFIG_CPU_FREQ_GOV_PERFORMANCE=y CONFIG_CPU_FREQ_GOV_POWERSAVE=y CONFIG_CPU_FREQ_GOV_USERSPACE=y CONFIG_CPU_FREQ_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y CONFIG_CPU_FREQ_PMAC=y CONFIG_TAU=y # # Kernel options # CONFIG_HZ_1000=y CONFIG_HZ=1000 CONFIG_PREEMPT=y CONFIG_PREEMPT_BKL=y CONFIG_BINFMT_ELF=y CONFIG_HOTPLUG_CPU=y CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_KEXEC=y CONFIG_ARCH_FLATMEM_ENABLE=y CONFIG_ARCH_POPULATES_NODE_MAP=y CONFIG_SELECT_MEMORY_MODEL=y CONFIG_FLATMEM_MANUAL=y CONFIG_FLATMEM=y CONFIG_FLAT_NODE_MEM_MAP=y CONFIG_SPLIT_PTLOCK_CPUS=4 CONFIG_RESOURCES_64BIT=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_ADAPTIVE_READAHEAD=y CONFIG_DEBUG_READAHEAD=y CONFIG_PROC_DEVICETREE=y CONFIG_PM=y CONFIG_PM_DEBUG=y CONFIG_PM_SYSFS_DEPRECATED=y CONFIG_SECCOMP=y CONFIG_ISA_DMA_API=y # # Bus options # CONFIG_ISA=y CONFIG_ZONE_DMA=y CONFIG_GENERIC_ISA_DMA=y CONFIG_PPC_INDIRECT_PCI=y CONFIG_PCI=y CONFIG_PCI_DOMAINS=y CONFIG_PCIEPORTBUS=y CONFIG_PCCARD=y CONFIG_PCMCIA=y CONFIG_PCMCIA_LOAD_CIS=y CONFIG_CARDBUS=y # # PC-card bridges # CONFIG_PCMCIA_PROBE=y # # Advanced setup # # # Default settings for advanced configuration options are used # CONFIG_HIGHMEM_START=0xfe00 CONFIG_LOWMEM_SIZE=0x3000 CONFIG_KERNEL_START=0xc000 CONFIG_TASK_SIZE=0x8000 CONFIG_BOOT_LOAD=0x0080 # # Networking # CONFIG_NET=y # # Networking options # CONFIG_PACKET=y CONFIG_UNIX=y CONFIG_XFRM=y
Re: PANIC: 2.6.21-rc7-mm2, Kernel access of bad area, sig: 11
On Sat, 28 Apr 2007, Andrew Morton wrote: On Sat, 28 Apr 2007 21:40:19 + (GMT) William Heimbigner <[EMAIL PROTECTED]> wrote: This bug occurs in linux-2.6.21-rc7-mm2, and does not occur in 2.6.21-rc7 ARCH is powerpc dmesg output, captured via netconsole: [0.00] Using PowerMac machine description [0.00] Total memory = 128MB; using 256kB for hash table (at c7fc) [0.00] Linux version 2.6.21-rc7-mm2 ([EMAIL PROTECTED]) (gcc version 4.1.1 (Gentoo 4.1.1-r3)) #3 SMP PREEMPT Sat Apr 28 14:29:54 CDT 2007 [0.00] Found UniNorth memory controller & host bridge @ 0xf800 revision: 0xc0 [0.00] Mapped at 0xfdfc [0.00] Found a Pangea mac-io controller, rev: 0, mapped at 0xfdf4 [0.00] PowerMac motherboard: iMac "Flower Power" It ran OK on my G5. Can you send the config please? grep -v "is not set" .config: # # Automatically generated make config: don't edit # Linux kernel version: 2.6.21-rc7-mm2 # Sat Apr 28 14:04:08 2007 # CONFIG_PPC_PM_NEEDS_RTC_LIB=y CONFIG_PPC32=y CONFIG_PPC_MERGE=y CONFIG_MMU=y CONFIG_GENERIC_HARDIRQS=y CONFIG_IRQ_PER_CPU=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_PPC=y CONFIG_EARLY_PRINTK=y CONFIG_GENERIC_NVRAM=y CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y CONFIG_ARCH_MAY_HAVE_PC_FDC=y CONFIG_PPC_OF=y CONFIG_PPC_UDBG_16550=y CONFIG_GENERIC_TBSYNC=y CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y # # Processor support # CONFIG_CLASSIC32=y CONFIG_6xx=y CONFIG_PPC_FPU=y CONFIG_ALTIVEC=y CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y CONFIG_SMP=y CONFIG_NR_CPUS=2 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" # # Code maturity level options # CONFIG_EXPERIMENTAL=y CONFIG_LOCK_KERNEL=y CONFIG_INIT_ENV_ARG_LIMIT=32 # # General setup # CONFIG_LOCALVERSION="" CONFIG_SWAP=y CONFIG_SWAP_PREFETCH=y CONFIG_SYSVIPC=y CONFIG_IPC_NS=y CONFIG_SYSVIPC_SYSCTL=y CONFIG_POSIX_MQUEUE=y CONFIG_BSD_PROCESS_ACCT=y CONFIG_BSD_PROCESS_ACCT_V3=y CONFIG_AUDIT=y CONFIG_AUDITSYSCALL=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y CONFIG_SYSFS_DEPRECATED=y CONFIG_BLK_DEV_INITRD=y CONFIG_INITRAMFS_SOURCE="" CONFIG_SYSCTL=y CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_ANON_INODES=y CONFIG_EPOLL=y CONFIG_SIGNALFD=y CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_VM_EVENT_COUNTERS=y CONFIG_PROC_SMAPS=y CONFIG_PROC_CLEAR_REFS=y CONFIG_PROC_PAGEMAP=y CONFIG_PROC_KPAGEMAP=y CONFIG_SLUB=y CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 # # Loadable module support # CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_MODULE_FORCE_UNLOAD=y CONFIG_MODVERSIONS=y CONFIG_MODULE_SRCVERSION_ALL=y CONFIG_KMOD=y CONFIG_STOP_MACHINE=y # # Block layer # CONFIG_BLOCK=y # # IO Schedulers # CONFIG_IOSCHED_NOOP=y CONFIG_IOSCHED_AS=y CONFIG_IOSCHED_DEADLINE=y CONFIG_IOSCHED_CFQ=y CONFIG_DEFAULT_CFQ=y CONFIG_DEFAULT_IOSCHED="cfq" # # Platform support # CONFIG_PPC_MULTIPLATFORM=y CONFIG_PPC_CHRP=y CONFIG_PPC_PMAC=y CONFIG_PPC_NATIVE=y CONFIG_MPIC=y CONFIG_PPC_I8259=y CONFIG_PPC_RTAS=y CONFIG_RTAS_PROC=y CONFIG_PPC_MPC106=y # # CPU Frequency support # CONFIG_CPU_FREQ=y CONFIG_CPU_FREQ_TABLE=y CONFIG_CPU_FREQ_STAT=y CONFIG_CPU_FREQ_STAT_DETAILS=y CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y CONFIG_CPU_FREQ_GOV_PERFORMANCE=y CONFIG_CPU_FREQ_GOV_POWERSAVE=y CONFIG_CPU_FREQ_GOV_USERSPACE=y CONFIG_CPU_FREQ_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y CONFIG_CPU_FREQ_PMAC=y CONFIG_TAU=y # # Kernel options # CONFIG_HZ_1000=y CONFIG_HZ=1000 CONFIG_PREEMPT=y CONFIG_PREEMPT_BKL=y CONFIG_BINFMT_ELF=y CONFIG_HOTPLUG_CPU=y CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_KEXEC=y CONFIG_ARCH_FLATMEM_ENABLE=y CONFIG_ARCH_POPULATES_NODE_MAP=y CONFIG_SELECT_MEMORY_MODEL=y CONFIG_FLATMEM_MANUAL=y CONFIG_FLATMEM=y CONFIG_FLAT_NODE_MEM_MAP=y CONFIG_SPLIT_PTLOCK_CPUS=4 CONFIG_RESOURCES_64BIT=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_ADAPTIVE_READAHEAD=y CONFIG_DEBUG_READAHEAD=y CONFIG_PROC_DEVICETREE=y CONFIG_PM=y CONFIG_PM_DEBUG=y CONFIG_PM_SYSFS_DEPRECATED=y CONFIG_SECCOMP=y CONFIG_ISA_DMA_API=y # # Bus options # CONFIG_ISA=y CONFIG_ZONE_DMA=y CONFIG_GENERIC_ISA_DMA=y CONFIG_PPC_INDIRECT_PCI=y CONFIG_PCI=y CONFIG_PCI_DOMAINS=y CONFIG_PCIEPORTBUS=y CONFIG_PCCARD=y CONFIG_PCMCIA=y CONFIG_PCMCIA_LOAD_CIS=y CONFIG_CARDBUS=y # # PC-card bridges # CONFIG_PCMCIA_PROBE=y # # Advanced setup # # # Default settings for advanced configuration options are used # CONFIG_HIGHMEM_START=0xfe00 CONFIG_LOWMEM_SIZE=0x3000 CONFIG_KERNEL_START=0xc000 CONFIG_TASK_SIZE=0x8000 CONFIG_BOOT_LOAD=0x0080 # # Networking # CONFIG_NET=y # # Networking options # CONFIG_PACKET=y CONFIG_UNIX=y CONFIG_XFRM=y CONFIG_XFRM_USER=y CONFIG_NET_KEY=y CONFIG_INET=y CONFIG_IP_MULTICAST=y CONFIG_IP_FIB_HASH=y CONFIG_SYN_COOKIES=y CONFIG_INET_AH=y CONFIG_INET_ESP=y CONFIG_INET_TUNNEL=m
Re: PANIC: 2.6.21-rc7-mm2, Kernel access of bad area, sig: 11
On Sat, 28 Apr 2007 21:40:19 + (GMT) William Heimbigner <[EMAIL PROTECTED]> wrote: > This bug occurs in linux-2.6.21-rc7-mm2, and does not occur in 2.6.21-rc7 > ARCH is powerpc > > dmesg output, captured via netconsole: > [0.00] Using PowerMac machine description > [0.00] Total memory = 128MB; using 256kB for hash table (at c7fc) > [0.00] Linux version 2.6.21-rc7-mm2 ([EMAIL PROTECTED]) (gcc version > 4.1.1 (Gentoo 4.1.1-r3)) #3 SMP PREEMPT Sat Apr 28 14:29:54 CDT 2007 > [0.00] Found UniNorth memory controller & host bridge @ 0xf800 > revision: 0xc0 > [0.00] Mapped at 0xfdfc > [0.00] Found a Pangea mac-io controller, rev: 0, mapped at 0xfdf4 > [0.00] PowerMac motherboard: iMac "Flower Power" It ran OK on my G5. Can you send the config please? > ... > [ 27.030444] input: PMU as /class/input/input4 > [ 27.052675] ReiserFS: hda4: found reiserfs format "3.6" with standard > journal > [ 27.058960] ReiserFS: hda4: using ordered data mode > [ 27.078108] ReiserFS: hda4: journal params: device hda4, size 8192, > journal first block 18, max trans len 1024, max batch 900, max commit age 30, > max trans age 30 > [ 27.099024] ReiserFS: hda4: checking transaction log (hda4) > [ 27.195147] ReiserFS: hda4: Using r5 hash to sort names > [ 27.201477] VFS: Mounted root (reiserfs filesystem) readonly. > [ 27.207715] Freeing unused kernel memory: 248k init > [ 156.166766] Oops: Kernel access of bad area, sig: 11 [#1] > [ 156.167014] PREEMPT SMP NR_CPUS=2 DEBUG_PAGEALLOC PowerMac > [ 156.167267] Modules linked in: nfsd exportfs pmac_zilog serial_core > ohci1394 ieee1394 uninorth_agp > [ 156.167711] NIP: c0068ce4 LR: c0068cdc CTR: > [ 156.167892] REGS: c0583a40 TRAP: 0300 Not tainted (2.6.21-rc7-mm2) > [ 156.168118] MSR: 1032 CR: 42202022 XER: > [ 156.168467] DAR: , DSISR: 4200 > [ 156.168617] TASK = c0550260[0] 'swapper' THREAD: c0582000 CPU: 0 > [ 156.168840] GPR00: c0583af0 c0550260 0783 c059bc88 0001 > c0488ec0 c059bc80 > [ 156.169272] GPR08: c0460713 c0488e77 c0488b70 3da3 > 0023f96c c059 > [ 156.169705] GPR16: c059 0023f964 c059 1032 > c0583eb0 c059 > [ 156.170145] GPR24: c0583b18 c0583b28 c000a1e4 > c0583b2c c059bc80 > [ 156.170594] NIP [c0068ce4] kallsyms_lookup+0x64/0xa4 > [ 156.170806] LR [c0068cdc] kallsyms_lookup+0x5c/0xa4 > [ 156.170997] Call Trace: > [ 156.171093] [c0583af0] [c0068cb4] kallsyms_lookup+0x34/0xa4 (unreliable) > [ 156.171384] --- Exception: c0583bb0 at 0xc0583ba0 > [ 156.171578] LR = draw_byte+0x34/0x1d0 > [ 156.171723] [c0583b10] [c002ebd0] xmon_show_stack+0x2b8/0x330 (unreliable) > [ 156.172017] [c0583c10] [c003053c] cmds+0xa20/0x1600 > [ 156.172235] [c0583ca0] [c0031448] xmon_core+0x32c/0x734 > [ 156.172452] [c0583d60] [c00319fc] xmon+0x2c/0x68 > [ 156.172647] [c0583e20] [c0031b40] xmon_irq+0x50/0x6c > [ 156.172856] [c0583e40] [c0073828] handle_IRQ_event+0x5c/0xb0 > [ 156.173090] [c0583e60] [c00755dc] handle_fasteoi_irq+0xac/0x174 > [ 156.17] [c0583e80] [c0006be4] do_IRQ+0xec/0x130 > [ 156.179644] [c0583ea0] [c0014fe8] ret_from_except+0x0/0x14 > [ 156.185827] --- Exception: 501 at cpu_idle here>+0xfc/0x1dc > LR = cpu_idle+0xfc/0x1dc > [c0583f60] [c000a24c] cpu_idle+0x164/0x1dc (unreliable) > [c0583f80] [c0003cc4] rest_init+0x74/0x88 > [c0583fa0] [c050fb68] start_kernel+0x310/0x394 > [c0583ff0] [37b4] 0x37b4 > > This occurs after pressing the programmer switch to generate an NMI. Can you expand on this? Do you mean that hitting the NMI switch is what caused this crash? Does a G5 have a programmer switch? If so, how does this programmer switch it? If you compiled with CONFIG_DEBUG_INFO could you please do gdb vmlinux (gdb) l *0xc0068ce4 Patches which touch kallsyms.c in -mm are: extend-print_symbol-capability simplify-module_get_kallsym-by-dropping-length-arg simplify-kallsyms_lookup fix-race-between-rmmod-and-cat-proc-kallsyms fix-race-between-cat-proc-wchan-and-rmmod-et-al fix-race-between-cat-proc-slab_allocators-and-rmmod kallsyms-cleanup-use-seq_release_private-where-appropriate - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: PANIC: 2.6.21-rc7-mm2, Kernel access of bad area, sig: 11
On Sat, 28 Apr 2007 21:40:19 + (GMT) William Heimbigner [EMAIL PROTECTED] wrote: This bug occurs in linux-2.6.21-rc7-mm2, and does not occur in 2.6.21-rc7 ARCH is powerpc dmesg output, captured via netconsole: [0.00] Using PowerMac machine description [0.00] Total memory = 128MB; using 256kB for hash table (at c7fc) [0.00] Linux version 2.6.21-rc7-mm2 ([EMAIL PROTECTED]) (gcc version 4.1.1 (Gentoo 4.1.1-r3)) #3 SMP PREEMPT Sat Apr 28 14:29:54 CDT 2007 [0.00] Found UniNorth memory controller host bridge @ 0xf800 revision: 0xc0 [0.00] Mapped at 0xfdfc [0.00] Found a Pangea mac-io controller, rev: 0, mapped at 0xfdf4 [0.00] PowerMac motherboard: iMac Flower Power It ran OK on my G5. Can you send the config please? ... [ 27.030444] input: PMU as /class/input/input4 [ 27.052675] ReiserFS: hda4: found reiserfs format 3.6 with standard journal [ 27.058960] ReiserFS: hda4: using ordered data mode [ 27.078108] ReiserFS: hda4: journal params: device hda4, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30 [ 27.099024] ReiserFS: hda4: checking transaction log (hda4) [ 27.195147] ReiserFS: hda4: Using r5 hash to sort names [ 27.201477] VFS: Mounted root (reiserfs filesystem) readonly. [ 27.207715] Freeing unused kernel memory: 248k init [ 156.166766] Oops: Kernel access of bad area, sig: 11 [#1] [ 156.167014] PREEMPT SMP NR_CPUS=2 DEBUG_PAGEALLOC PowerMac [ 156.167267] Modules linked in: nfsd exportfs pmac_zilog serial_core ohci1394 ieee1394 uninorth_agp [ 156.167711] NIP: c0068ce4 LR: c0068cdc CTR: [ 156.167892] REGS: c0583a40 TRAP: 0300 Not tainted (2.6.21-rc7-mm2) [ 156.168118] MSR: 1032 ME,IR,DR CR: 42202022 XER: [ 156.168467] DAR: , DSISR: 4200 [ 156.168617] TASK = c0550260[0] 'swapper' THREAD: c0582000 CPU: 0 [ 156.168840] GPR00: c0583af0 c0550260 0783 c059bc88 0001 c0488ec0 c059bc80 [ 156.169272] GPR08: c0460713 c0488e77 c0488b70 3da3 0023f96c c059 [ 156.169705] GPR16: c059 0023f964 c059 1032 c0583eb0 c059 [ 156.170145] GPR24: c0583b18 c0583b28 c000a1e4 c0583b2c c059bc80 [ 156.170594] NIP [c0068ce4] kallsyms_lookup+0x64/0xa4 [ 156.170806] LR [c0068cdc] kallsyms_lookup+0x5c/0xa4 [ 156.170997] Call Trace: [ 156.171093] [c0583af0] [c0068cb4] kallsyms_lookup+0x34/0xa4 (unreliable) [ 156.171384] --- Exception: c0583bb0 at 0xc0583ba0 [ 156.171578] LR = draw_byte+0x34/0x1d0 [ 156.171723] [c0583b10] [c002ebd0] xmon_show_stack+0x2b8/0x330 (unreliable) [ 156.172017] [c0583c10] [c003053c] cmds+0xa20/0x1600 [ 156.172235] [c0583ca0] [c0031448] xmon_core+0x32c/0x734 [ 156.172452] [c0583d60] [c00319fc] xmon+0x2c/0x68 [ 156.172647] [c0583e20] [c0031b40] xmon_irq+0x50/0x6c [ 156.172856] [c0583e40] [c0073828] handle_IRQ_event+0x5c/0xb0 [ 156.173090] [c0583e60] [c00755dc] handle_fasteoi_irq+0xac/0x174 [ 156.17] [c0583e80] [c0006be4] do_IRQ+0xec/0x130 [ 156.179644] [c0583ea0] [c0014fe8] ret_from_except+0x0/0x14 [ 156.185827] --- Exception: 501 at cpu_idlehand copied begins here+0xfc/0x1dc LR = cpu_idle+0xfc/0x1dc [c0583f60] [c000a24c] cpu_idle+0x164/0x1dc (unreliable) [c0583f80] [c0003cc4] rest_init+0x74/0x88 [c0583fa0] [c050fb68] start_kernel+0x310/0x394 [c0583ff0] [37b4] 0x37b4 This occurs after pressing the programmer switch to generate an NMI. Can you expand on this? Do you mean that hitting the NMI switch is what caused this crash? Does a G5 have a programmer switch? If so, how does this programmer switch it? If you compiled with CONFIG_DEBUG_INFO could you please do gdb vmlinux (gdb) l *0xc0068ce4 Patches which touch kallsyms.c in -mm are: extend-print_symbol-capability simplify-module_get_kallsym-by-dropping-length-arg simplify-kallsyms_lookup fix-race-between-rmmod-and-cat-proc-kallsyms fix-race-between-cat-proc-wchan-and-rmmod-et-al fix-race-between-cat-proc-slab_allocators-and-rmmod kallsyms-cleanup-use-seq_release_private-where-appropriate - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: PANIC: 2.6.21-rc7-mm2, Kernel access of bad area, sig: 11
On Sat, 28 Apr 2007, Andrew Morton wrote: On Sat, 28 Apr 2007 21:40:19 + (GMT) William Heimbigner [EMAIL PROTECTED] wrote: This bug occurs in linux-2.6.21-rc7-mm2, and does not occur in 2.6.21-rc7 ARCH is powerpc dmesg output, captured via netconsole: [0.00] Using PowerMac machine description [0.00] Total memory = 128MB; using 256kB for hash table (at c7fc) [0.00] Linux version 2.6.21-rc7-mm2 ([EMAIL PROTECTED]) (gcc version 4.1.1 (Gentoo 4.1.1-r3)) #3 SMP PREEMPT Sat Apr 28 14:29:54 CDT 2007 [0.00] Found UniNorth memory controller host bridge @ 0xf800 revision: 0xc0 [0.00] Mapped at 0xfdfc [0.00] Found a Pangea mac-io controller, rev: 0, mapped at 0xfdf4 [0.00] PowerMac motherboard: iMac Flower Power It ran OK on my G5. Can you send the config please? grep -v is not set .config: # # Automatically generated make config: don't edit # Linux kernel version: 2.6.21-rc7-mm2 # Sat Apr 28 14:04:08 2007 # CONFIG_PPC_PM_NEEDS_RTC_LIB=y CONFIG_PPC32=y CONFIG_PPC_MERGE=y CONFIG_MMU=y CONFIG_GENERIC_HARDIRQS=y CONFIG_IRQ_PER_CPU=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_PPC=y CONFIG_EARLY_PRINTK=y CONFIG_GENERIC_NVRAM=y CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y CONFIG_ARCH_MAY_HAVE_PC_FDC=y CONFIG_PPC_OF=y CONFIG_PPC_UDBG_16550=y CONFIG_GENERIC_TBSYNC=y CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y # # Processor support # CONFIG_CLASSIC32=y CONFIG_6xx=y CONFIG_PPC_FPU=y CONFIG_ALTIVEC=y CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y CONFIG_SMP=y CONFIG_NR_CPUS=2 CONFIG_DEFCONFIG_LIST=/lib/modules/$UNAME_RELEASE/.config # # Code maturity level options # CONFIG_EXPERIMENTAL=y CONFIG_LOCK_KERNEL=y CONFIG_INIT_ENV_ARG_LIMIT=32 # # General setup # CONFIG_LOCALVERSION= CONFIG_SWAP=y CONFIG_SWAP_PREFETCH=y CONFIG_SYSVIPC=y CONFIG_IPC_NS=y CONFIG_SYSVIPC_SYSCTL=y CONFIG_POSIX_MQUEUE=y CONFIG_BSD_PROCESS_ACCT=y CONFIG_BSD_PROCESS_ACCT_V3=y CONFIG_AUDIT=y CONFIG_AUDITSYSCALL=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y CONFIG_SYSFS_DEPRECATED=y CONFIG_BLK_DEV_INITRD=y CONFIG_INITRAMFS_SOURCE= CONFIG_SYSCTL=y CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_ANON_INODES=y CONFIG_EPOLL=y CONFIG_SIGNALFD=y CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_VM_EVENT_COUNTERS=y CONFIG_PROC_SMAPS=y CONFIG_PROC_CLEAR_REFS=y CONFIG_PROC_PAGEMAP=y CONFIG_PROC_KPAGEMAP=y CONFIG_SLUB=y CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 # # Loadable module support # CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_MODULE_FORCE_UNLOAD=y CONFIG_MODVERSIONS=y CONFIG_MODULE_SRCVERSION_ALL=y CONFIG_KMOD=y CONFIG_STOP_MACHINE=y # # Block layer # CONFIG_BLOCK=y # # IO Schedulers # CONFIG_IOSCHED_NOOP=y CONFIG_IOSCHED_AS=y CONFIG_IOSCHED_DEADLINE=y CONFIG_IOSCHED_CFQ=y CONFIG_DEFAULT_CFQ=y CONFIG_DEFAULT_IOSCHED=cfq # # Platform support # CONFIG_PPC_MULTIPLATFORM=y CONFIG_PPC_CHRP=y CONFIG_PPC_PMAC=y CONFIG_PPC_NATIVE=y CONFIG_MPIC=y CONFIG_PPC_I8259=y CONFIG_PPC_RTAS=y CONFIG_RTAS_PROC=y CONFIG_PPC_MPC106=y # # CPU Frequency support # CONFIG_CPU_FREQ=y CONFIG_CPU_FREQ_TABLE=y CONFIG_CPU_FREQ_STAT=y CONFIG_CPU_FREQ_STAT_DETAILS=y CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y CONFIG_CPU_FREQ_GOV_PERFORMANCE=y CONFIG_CPU_FREQ_GOV_POWERSAVE=y CONFIG_CPU_FREQ_GOV_USERSPACE=y CONFIG_CPU_FREQ_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y CONFIG_CPU_FREQ_PMAC=y CONFIG_TAU=y # # Kernel options # CONFIG_HZ_1000=y CONFIG_HZ=1000 CONFIG_PREEMPT=y CONFIG_PREEMPT_BKL=y CONFIG_BINFMT_ELF=y CONFIG_HOTPLUG_CPU=y CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_KEXEC=y CONFIG_ARCH_FLATMEM_ENABLE=y CONFIG_ARCH_POPULATES_NODE_MAP=y CONFIG_SELECT_MEMORY_MODEL=y CONFIG_FLATMEM_MANUAL=y CONFIG_FLATMEM=y CONFIG_FLAT_NODE_MEM_MAP=y CONFIG_SPLIT_PTLOCK_CPUS=4 CONFIG_RESOURCES_64BIT=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_ADAPTIVE_READAHEAD=y CONFIG_DEBUG_READAHEAD=y CONFIG_PROC_DEVICETREE=y CONFIG_PM=y CONFIG_PM_DEBUG=y CONFIG_PM_SYSFS_DEPRECATED=y CONFIG_SECCOMP=y CONFIG_ISA_DMA_API=y # # Bus options # CONFIG_ISA=y CONFIG_ZONE_DMA=y CONFIG_GENERIC_ISA_DMA=y CONFIG_PPC_INDIRECT_PCI=y CONFIG_PCI=y CONFIG_PCI_DOMAINS=y CONFIG_PCIEPORTBUS=y CONFIG_PCCARD=y CONFIG_PCMCIA=y CONFIG_PCMCIA_LOAD_CIS=y CONFIG_CARDBUS=y # # PC-card bridges # CONFIG_PCMCIA_PROBE=y # # Advanced setup # # # Default settings for advanced configuration options are used # CONFIG_HIGHMEM_START=0xfe00 CONFIG_LOWMEM_SIZE=0x3000 CONFIG_KERNEL_START=0xc000 CONFIG_TASK_SIZE=0x8000 CONFIG_BOOT_LOAD=0x0080 # # Networking # CONFIG_NET=y # # Networking options # CONFIG_PACKET=y CONFIG_UNIX=y CONFIG_XFRM=y CONFIG_XFRM_USER=y CONFIG_NET_KEY=y CONFIG_INET=y CONFIG_IP_MULTICAST=y CONFIG_IP_FIB_HASH=y CONFIG_SYN_COOKIES=y CONFIG_INET_AH=y CONFIG_INET_ESP=y CONFIG_INET_TUNNEL=m
Re: PANIC: 2.6.21-rc7-mm2, Kernel access of bad area, sig: 11
On Sat, 28 Apr 2007, William Heimbigner wrote: On Sat, 28 Apr 2007, Andrew Morton wrote: On Sat, 28 Apr 2007 21:40:19 + (GMT) William Heimbigner [EMAIL PROTECTED] wrote: This bug occurs in linux-2.6.21-rc7-mm2, and does not occur in 2.6.21-rc7 ARCH is powerpc dmesg output, captured via netconsole: [0.00] Using PowerMac machine description [0.00] Total memory = 128MB; using 256kB for hash table (at c7fc) [0.00] Linux version 2.6.21-rc7-mm2 ([EMAIL PROTECTED]) (gcc version 4.1.1 (Gentoo 4.1.1-r3)) #3 SMP PREEMPT Sat Apr 28 14:29:54 CDT 2007 [0.00] Found UniNorth memory controller host bridge @ 0xf800 revision: 0xc0 [0.00] Mapped at 0xfdfc [0.00] Found a Pangea mac-io controller, rev: 0, mapped at 0xfdf4 [0.00] PowerMac motherboard: iMac Flower Power It ran OK on my G5. Can you send the config please? grep -v is not set .config: # # Automatically generated make config: don't edit # Linux kernel version: 2.6.21-rc7-mm2 # Sat Apr 28 14:04:08 2007 # CONFIG_PPC_PM_NEEDS_RTC_LIB=y CONFIG_PPC32=y CONFIG_PPC_MERGE=y CONFIG_MMU=y CONFIG_GENERIC_HARDIRQS=y CONFIG_IRQ_PER_CPU=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_PPC=y CONFIG_EARLY_PRINTK=y CONFIG_GENERIC_NVRAM=y CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y CONFIG_ARCH_MAY_HAVE_PC_FDC=y CONFIG_PPC_OF=y CONFIG_PPC_UDBG_16550=y CONFIG_GENERIC_TBSYNC=y CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y # # Processor support # CONFIG_CLASSIC32=y CONFIG_6xx=y CONFIG_PPC_FPU=y CONFIG_ALTIVEC=y CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y CONFIG_SMP=y CONFIG_NR_CPUS=2 CONFIG_DEFCONFIG_LIST=/lib/modules/$UNAME_RELEASE/.config # # Code maturity level options # CONFIG_EXPERIMENTAL=y CONFIG_LOCK_KERNEL=y CONFIG_INIT_ENV_ARG_LIMIT=32 # # General setup # CONFIG_LOCALVERSION= CONFIG_SWAP=y CONFIG_SWAP_PREFETCH=y CONFIG_SYSVIPC=y CONFIG_IPC_NS=y CONFIG_SYSVIPC_SYSCTL=y CONFIG_POSIX_MQUEUE=y CONFIG_BSD_PROCESS_ACCT=y CONFIG_BSD_PROCESS_ACCT_V3=y CONFIG_AUDIT=y CONFIG_AUDITSYSCALL=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y CONFIG_SYSFS_DEPRECATED=y CONFIG_BLK_DEV_INITRD=y CONFIG_INITRAMFS_SOURCE= CONFIG_SYSCTL=y CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_ANON_INODES=y CONFIG_EPOLL=y CONFIG_SIGNALFD=y CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_VM_EVENT_COUNTERS=y CONFIG_PROC_SMAPS=y CONFIG_PROC_CLEAR_REFS=y CONFIG_PROC_PAGEMAP=y CONFIG_PROC_KPAGEMAP=y CONFIG_SLUB=y CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 # # Loadable module support # CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_MODULE_FORCE_UNLOAD=y CONFIG_MODVERSIONS=y CONFIG_MODULE_SRCVERSION_ALL=y CONFIG_KMOD=y CONFIG_STOP_MACHINE=y # # Block layer # CONFIG_BLOCK=y # # IO Schedulers # CONFIG_IOSCHED_NOOP=y CONFIG_IOSCHED_AS=y CONFIG_IOSCHED_DEADLINE=y CONFIG_IOSCHED_CFQ=y CONFIG_DEFAULT_CFQ=y CONFIG_DEFAULT_IOSCHED=cfq # # Platform support # CONFIG_PPC_MULTIPLATFORM=y CONFIG_PPC_CHRP=y CONFIG_PPC_PMAC=y CONFIG_PPC_NATIVE=y CONFIG_MPIC=y CONFIG_PPC_I8259=y CONFIG_PPC_RTAS=y CONFIG_RTAS_PROC=y CONFIG_PPC_MPC106=y # # CPU Frequency support # CONFIG_CPU_FREQ=y CONFIG_CPU_FREQ_TABLE=y CONFIG_CPU_FREQ_STAT=y CONFIG_CPU_FREQ_STAT_DETAILS=y CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y CONFIG_CPU_FREQ_GOV_PERFORMANCE=y CONFIG_CPU_FREQ_GOV_POWERSAVE=y CONFIG_CPU_FREQ_GOV_USERSPACE=y CONFIG_CPU_FREQ_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y CONFIG_CPU_FREQ_PMAC=y CONFIG_TAU=y # # Kernel options # CONFIG_HZ_1000=y CONFIG_HZ=1000 CONFIG_PREEMPT=y CONFIG_PREEMPT_BKL=y CONFIG_BINFMT_ELF=y CONFIG_HOTPLUG_CPU=y CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_KEXEC=y CONFIG_ARCH_FLATMEM_ENABLE=y CONFIG_ARCH_POPULATES_NODE_MAP=y CONFIG_SELECT_MEMORY_MODEL=y CONFIG_FLATMEM_MANUAL=y CONFIG_FLATMEM=y CONFIG_FLAT_NODE_MEM_MAP=y CONFIG_SPLIT_PTLOCK_CPUS=4 CONFIG_RESOURCES_64BIT=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_ADAPTIVE_READAHEAD=y CONFIG_DEBUG_READAHEAD=y CONFIG_PROC_DEVICETREE=y CONFIG_PM=y CONFIG_PM_DEBUG=y CONFIG_PM_SYSFS_DEPRECATED=y CONFIG_SECCOMP=y CONFIG_ISA_DMA_API=y # # Bus options # CONFIG_ISA=y CONFIG_ZONE_DMA=y CONFIG_GENERIC_ISA_DMA=y CONFIG_PPC_INDIRECT_PCI=y CONFIG_PCI=y CONFIG_PCI_DOMAINS=y CONFIG_PCIEPORTBUS=y CONFIG_PCCARD=y CONFIG_PCMCIA=y CONFIG_PCMCIA_LOAD_CIS=y CONFIG_CARDBUS=y # # PC-card bridges # CONFIG_PCMCIA_PROBE=y # # Advanced setup # # # Default settings for advanced configuration options are used # CONFIG_HIGHMEM_START=0xfe00 CONFIG_LOWMEM_SIZE=0x3000 CONFIG_KERNEL_START=0xc000 CONFIG_TASK_SIZE=0x8000 CONFIG_BOOT_LOAD=0x0080 # # Networking # CONFIG_NET=y # # Networking options # CONFIG_PACKET=y CONFIG_UNIX=y CONFIG_XFRM=y CONFIG_XFRM_USER=y CONFIG_NET_KEY=y
