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Description of problem: When run test /kernel/kdump/crash-crasher, system failed to dump vmcore. =========================================== /mnt/tests/kernel/kdump/crash-crasher /mnt/tests/kernel/kdump/crash-crasher loaded crasher module Kernel panic - not syncing: KDUMP test panic Pid: 14043, comm: runtest.sh Not tainted 2.6.32-114.0.1.el6.i686 #1 Call Trace: [<c081e22e>] ? panic+0x42/0xf7 [<f7e1d0e0>] ? crasher_write+0x80/0x90 [crasher] [<c0576d9d>] ? proc_file_write+0x5d/0x90 [<c0576d40>] ? proc_file_write+0x0/0x90 [<c0571fb4>] ? proc_reg_write+0x64/0xa0 [<c0571f50>] ? proc_reg_write+0x0/0xa0 [<c05259b0>] ? vfs_write+0xa0/0x190 [<c04ad35c>] ? audit_syscall_entry+0x21c/0x240 [<c0526431>] ? sys_write+0x41/0x70 [<c0409a7f>] ? sysenter_do_call+0x12/0x28 Initializing cgroup subsys cpuset Initializing cgroup subsys cpu Linux version 2.6.32-114.0.1.el6.i686 (mockbuild.redhat.com) (gcc version 4.4.4 20100726 (Red Hat 4.4.4-13) (GCC) ) #1 SMP Thu Feb 10 15:58:19 EST 2011 KERNEL supported cpus: Intel GenuineIntel AMD AuthenticAMD NSC Geode by NSC Cyrix CyrixInstead Centaur CentaurHauls Transmeta GenuineTMx86 Transmeta TransmetaCPU UMC UMC UMC UMC BIOS-provided physical RAM map: BIOS-e820: 0000000000000100 - 00000000000a0000 (usable) BIOS-e820: 0000000000100000 - 00000000dfee8000 (usable) BIOS-e820: 00000000dfee8000 - 00000000dff07c00 (ACPI data) BIOS-e820: 00000000dff07c00 - 00000000e0000000 (reserved) BIOS-e820: 00000000f0000000 - 00000000f8000000 (reserved) BIOS-e820: 00000000fe000000 - 0000000100000000 (reserved) BIOS-e820: 0000000100000000 - 0000000220000000 (usable) last_pfn = 0x220000 max_arch_pfn = 0x400000 user-defined physical RAM map: user: 0000000000000000 - 00000000000a0000 (usable) user: 0000000002000000 - 0000000009f5a000 (usable) user: 0000000009f5a800 - 0000000009f5f000 (usable) user: 0000000009fff000 - 000000000a000000 (usable) user: 00000000dfee8000 - 00000000dff07c00 (ACPI data) user: 00000000dff07c00 - 00000000e0000000 (reserved) user: 00000000f0000000 - 00000000f8000000 (reserved) user: 00000000fe000000 - 0000000100000000 (reserved) DMI 2.4 present. last_pfn = 0xa000 max_arch_pfn = 0x400000 x86 PAT enabled: cpu 0, old 0x7010600070106, new 0x7010600070106 init_memory_mapping: 0000000000000000-000000000a000000 NX (Execute Disable) protection: active RAMDISK: 09aa1000 - 09f4e0f4 ACPI: RSDP 000f2340 00024 (v02 DELL ) ACPI: XSDT 000f23a8 00064 (v01 DELL PE_SC3 00000001 DELL 00000001) ACPI: FACP 000f2480 000F4 (v03 DELL PE_SC3 00000001 DELL 00000001) ACPI: DSDT dfee8000 05551 (v01 DELL PE_SC3 00000001 INTL 20050624) ACPI: FACS dff03400 00040 ACPI: APIC 000f2574 000E0 (v01 DELL PE_SC3 00000001 DELL 00000001) ACPI: SPCR 000f2655 00050 (v01 DELL PE_SC3 00000001 DELL 00000001) ACPI: HPET 000f26a5 00038 (v01 DELL PE_SC3 00000001 DELL 00000001) ACPI: MCFG 000f26dd 0003C (v01 DELL PE_SC3 00000001 DELL 00000001) ACPI: SLIC 000f2719 00176 (v01 DELL PE_SC3 00000001 DELL 00000001) ACPI: SRAT 000fc0e4 001A0 (v01 DELL PE_SC3 00000001 DELL 00000001) ACPI: SSDT dff03800 00030 (v01 DELL PE_SC3 00000001 DELL 00000001) 0MB HIGHMEM available. 160MB LOWMEM available. mapped low ram: 0 - 0a000000 low ram: 0 - 0a000000 node 0 low ram: 00000000 - 0a000000 node 0 bootmap 00002000 - 00003400 (9 early reservations) ==> bootmem [0000000000 - 000a000000] #0 [0000000000 - 0000001000] BIOS data page ==> [0000000000 - 0000001000] #1 [0000001000 - 0000002000] EX TRAMPOLINE ==> [0000001000 - 0000002000] #2 [0000006000 - 0000007000] TRAMPOLINE ==> [0000006000 - 0000007000] #3 [0002400000 - 0002be8d90] TEXT DATA BSS ==> [0002400000 - 0002be8d90] #4 [0009aa1000 - 0009f4e0f4] RAMDISK ==> [0009aa1000 - 0009f4e0f4] #5 [000009f000 - 0000100000] BIOS reserved ==> [000009f000 - 0000100000] #6 [0002be9000 - 0002c011bc] BRK ==> [0002be9000 - 0002c011bc] #7 [0000007000 - 000000a000] PGTABLE ==> [0000007000 - 000000a000] #8 [0000002000 - 0000004000] BOOTMAP ==> [0000002000 - 0000004000] found SMP MP-table at [c00fe710] fe710 Zone PFN ranges: DMA 0x00000001 -> 0x00001000 Normal 0x00001000 -> 0x0000a000 HighMem 0x0000a000 -> 0x0000a000 Movable zone start PFN for each node early_node_map[4] active PFN ranges 0: 0x00000001 -> 0x000000a0 0: 0x00002000 -> 0x00009f5a 0: 0x00009f5b -> 0x00009f5f 0: 0x00009fff -> 0x0000a000 Using APIC driver default Detected use of extended apic ids on hypertransport bus Detected use of extended apic ids on hypertransport bus Detected use of extended apic ids on hypertransport bus Detected use of extended apic ids on hypertransport bus ACPI: PM-Timer IO Port: 0x808 ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] enabled) ACPI: LAPIC (acpi_id[0x03] lapic_id[0x04] enabled) ACPI: LAPIC (acpi_id[0x04] lapic_id[0x06] enabled) ACPI: LAPIC (acpi_id[0x05] lapic_id[0x01] enabled) ACPI: LAPIC (acpi_id[0x06] lapic_id[0x03] enabled) ACPI: LAPIC (acpi_id[0x07] lapic_id[0x05] enabled) ACPI: LAPIC (acpi_id[0x08] lapic_id[0x07] enabled) ACPI: LAPIC (acpi_id[0x09] lapic_id[0x18] disabled) ACPI: LAPIC (acpi_id[0x0a] lapic_id[0x19] disabled) ACPI: LAPIC (acpi_id[0x0b] lapic_id[0x1a] disabled) ACPI: LAPIC (acpi_id[0x0c] lapic_id[0x1b] disabled) ACPI: LAPIC (acpi_id[0x0d] lapic_id[0x1c] disabled) ACPI: LAPIC (acpi_id[0x0e] lapic_id[0x1d] disabled) ACPI: LAPIC (acpi_id[0x0f] lapic_id[0x1e] disabled) ACPI: LAPIC (acpi_id[0x10] lapic_id[0x1f] disabled) ACPI: LAPIC_NMI (acpi_id[0xff] high edge lint[0x1]) ACPI: IOAPIC (id[0x08] address[0xfec00000] gsi_base[0]) IOAPIC[0]: apic_id 8, version 17, address 0xfec00000, GSI 0-15 ACPI: IOAPIC (id[0x09] address[0xfec01000] gsi_base[32]) IOAPIC[1]: apic_id 9, version 17, address 0xfec01000, GSI 32-47 ACPI: IOAPIC (id[0x0a] address[0xfec02000] gsi_base[64]) IOAPIC[2]: apic_id 10, version 17, address 0xfec02000, GSI 64-79 ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) Using ACPI (MADT) for SMP configuration information ACPI: HPET id: 0x1166a201 base: 0xfed00000 SMP: Allowing 16 CPUs, 8 hotplug CPUs PM: Registered nosave memory: 00000000000a0000 - 0000000002000000 PM: Registered nosave memory: 0000000009f5a000 - 0000000009f5b000 PM: Registered nosave memory: 0000000009f5f000 - 0000000009fff000 Allocating PCI resources starting at a000000 (gap: a000000:d5ee8000) Booting paravirtualized kernel on bare hardware NR_CPUS:32 nr_cpumask_bits:32 nr_cpu_ids:16 nr_node_ids:1 PERCPU: Embedded 14 pages/cpu @c2200000 s34584 r0 d22760 u131072 pcpu-alloc: s34584 r0 d22760 u131072 alloc=1*2097152 pcpu-alloc: [0] 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32446 Kernel command line: ro root=/dev/mapper/vg_dellpe695001-lv_root rd_LVM_LV=vg_dellpe695001/lv_root rd_LVM_LV=vg_dellpe695001/lv_swap rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us console=ttyS1,57600 irqpoll maxcpus=1 reset_devices cgroup_disable=memory memmap=exactmap memmap=640K@0K memmap=130408K@32768K memmap=18K@163178K memmap=4K@163836K memmap=127K#3668896K memmap=993K$3669023K memmap=131072K$3932160K memmap=32768K$4161536K elfcorehdr=163176K Misrouted IRQ fixup and polling support enabled This may significantly impact system performance Disabling memory control group subsystem PID hash table entries: 512 (order: -1, 2048 bytes) Dentry cache hash table entries: 16384 (order: 4, 65536 bytes) Inode-cache hash table entries: 8192 (order: 3, 32768 bytes) Enabling fast FPU save and restore... done. Enabling unmasked SIMD FPU exception support... done. Initializing CPU#0 Initializing HighMem for node 0 (00000000:00000000) Memory: 112676k/163840k available (4249k kernel code, 18244k reserved, 2253k data, 524k init, 0k highmem) virtual kernel memory layout: fixmap : 0xffad5000 - 0xfffff000 (5288 kB) pkmap : 0xff600000 - 0xff800000 (2048 kB) vmalloc : 0xca800000 - 0xff5fe000 ( 845 MB) lowmem : 0xc0000000 - 0xca000000 ( 160 MB) .init : 0xc2a5a000 - 0xc2add000 ( 524 kB) .data : 0xc28264ba - 0xc2a59c48 (2253 kB) .text : 0xc2400000 - 0xc28264ba (4249 kB) Checking if this processor honours the WP bit even in supervisor mode...Ok. Hierarchical RCU implementation. NR_IRQS:2304 nr_irqs:1488 Extended CMOS year: 2000 Spurious LAPIC timer interrupt on cpu 0 Console: colour VGA+ 80x25 console [ttyS1] enabled HPET: 3 timers in total, 0 timers will be used for per-cpu timer Fast TSC calibration using PIT Detected 1995.080 MHz processor. Calibrating delay loop (skipped), value calculated using timer frequency.. 3990.16 BogoMIPS (lpj=1995080) pid_max: default: 32768 minimum: 301 Security Framework initialized SELinux: Initializing. Mount-cache hash table entries: 512 Initializing cgroup subsys ns Initializing cgroup subsys cpuacct Initializing cgroup subsys memory Initializing cgroup subsys devices Initializing cgroup subsys freezer Initializing cgroup subsys net_cls Initializing cgroup subsys blkio CPU: Physical Processor ID: 0 CPU: Processor Core ID: 1 mce: CPU supports 5 MCE banks using C1E aware idle routine Checking 'hlt' instruction... OK. SMP alternatives: switching to UP code ACPI: Core revision 20090903 Overriding APIC driver with bigsmp Enabling APIC mode: Physflat. Using 3 I/O APICs Leaving ESR disabled. ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 CPU0: Dual-Core AMD Opteron(tm) Processor 8212 stepping 02 Performance Events: AMD PMU driver. ... version: 0 ... bit width: 48 ... generic registers: 4 ... value mask: 0000ffffffffffff ... max period: 00007fffffffffff ... fixed-purpose events: 0 ... event mask: 000000000000000f Brought up 1 CPUs Total of 1 processors activated (3990.16 BogoMIPS). devtmpfs: initialized regulator: core version 0.5 NET: Registered protocol family 16 ACPI FADT declares the system doesn't support PCIe ASPM, so disable it ACPI: bus type pci registered PCI: MCFG configuration 0: base f0000000 segment 0 buses 0 - 63 PCI: MCFG area at f0000000 reserved in E820 PCI: Using MMCONFIG for extended config space PCI: Using configuration type 1 for base access bio: create slab <bio-0> at 0 ACPI: BIOS _OSI(Linux) query ignored ACPI: Interpreter enabled ACPI: (supports S0 S4 S5) ACPI: Using IOAPIC for interrupt routing ACPI: No dock devices found. <==============================================Hang here Version-Release number of selected component (if applicable): kernel-2.6.32-114.0.1.el6.i686 kernel-firmware-2.6.32-114.0.1.el6.noarch kexec-tools-2.0.0-165.el6.i686 How reproducible: Issue found on dell-pe6950-01.rhts.eng.bos.redhat.com Steps to Reproduce: 1.Setup kdump 2.Run test /kernel/kdump/crash-crasher as TESTARGS=0 3. Actual results: Kdump failed and system hang Expected results: Kdump executed as expected Additional info: https://beaker.engineering.redhat.com/recipes/108173 http://lab2.rhts.eng.bos.redhat.com/beaker/logs/recipes/108173///console.log
Reporter, Could I please ask you to provide a priority assessment (set the priority field to one of urgent/high/medium/low) for the impact of this issue? This will help us prioritize this issue with our other outstanding bugs for the current release cycle ... Regards, Brock
Not that it should matter, but I find it odd that the last usable e820 section got left out of the user map: BIOS-e820: 0000000100000000 - 0000000220000000 (usable) Amerigo, it might be worth looking into why that got dropped in kdump
Since RHEL 6.1 External Beta has begun, and this bug remains unresolved, it has been rejected as it is not proposed as exception or blocker. Red Hat invites you to ask your support representative to propose this request, if appropriate and relevant, in the next release of Red Hat Enterprise Linux.
This might be a dup of Bug 601120.
closing per comment 6. Feel free to re-open if you think they're two different bugs. *** This bug has been marked as a duplicate of bug 601120 ***