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Message-ID: <28bb77d30610121450n6cfd9c6ejd6b0370d2400a378@mail.gmail.com> Date: Thu, 12 Oct 2006 14:50:33 -0700 From: "Steven Truong" <midair77@...il.com> To: linux-kernel@...r.kernel.org Subject: kdump/kexec/crash on vmcore file Hi, all. This is my first attempt to troubleshoot a kernel panic so I am quite newbie in this area. I have been able to obtain a kdump when my box had kernel panic. I set up Kdump and Kexec and then the captured/crash kernel to boot into Level 1 and then copy /proc/vmcore file to the disk for later analysis. However, after the server booted back to Level 3 and I utilized the crash command to analyzed the vmcore file. I got error message: ./crash /boot/vmlinux ../vmcore.test crash: read error: kernel virtual address: ffffffff8123d1e0 type: "kernel_config_data" WARNING: cannot read kernel_config_data crash: read error: kernel virtual address: ffffffff813b5180 type: "xtime" I installed the lastest crash software 4.0-3.6. I googled left and right but nothing has turned up useful. Thank you for all the helps and hints. My box is dual Xeon 3.2 GHz, 4 GBs of PC2700 DDR2 and run CentOS 4.3 with kernel Linux node30 2.6.18 #1 SMP Mon Oct 9 14:42:15 PDT 2006 x86_64 x86_64 x86_64 GNU/Linux lspci 00:00.0 Host bridge: Intel Corporation E7320 Memory Controller Hub (rev 0c) 00:02.0 PCI bridge: Intel Corporation E7525/E7520/E7320 PCI Express Port A (rev 0c) 00:03.0 PCI bridge: Intel Corporation E7525/E7520/E7320 PCI Express Port A1 (rev 0c) 00:1c.0 PCI bridge: Intel Corporation 6300ESB 64-bit PCI-X Bridge (rev 02) 00:1d.0 USB Controller: Intel Corporation 6300ESB USB Universal Host Controller (rev 02) 00:1d.1 USB Controller: Intel Corporation 6300ESB USB Universal Host Controller (rev 02) 00:1d.4 System peripheral: Intel Corporation 6300ESB Watchdog Timer (rev 02) 00:1d.5 PIC: Intel Corporation 6300ESB I/O Advanced Programmable Interrupt Controller (rev 02) 00:1d.7 USB Controller: Intel Corporation 6300ESB USB2 Enhanced Host Controller (rev 02) 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 0a) 00:1f.0 ISA bridge: Intel Corporation 6300ESB LPC Interface Controller (rev 02) 00:1f.2 IDE interface: Intel Corporation 6300ESB SATA Storage Controller (rev 02) 00:1f.3 SMBus: Intel Corporation 6300ESB SMBus Controller (rev 02) 01:00.0 PCI bridge: Intel Corporation 6700PXH PCI Express-to-PCI Bridge A (rev 09) 01:00.2 PCI bridge: Intel Corporation 6700PXH PCI Express-to-PCI Bridge B (rev 09) 05:01.0 Ethernet controller: Intel Corporation 82541GI/PI Gigabit Ethernet Controller (rev 05) 05:02.0 Ethernet controller: Intel Corporation 82541GI/PI Gigabit Ethernet Controller (rev 05) 06:02.0 VGA compatible controller: ATI Technologies Inc Rage XL (rev 27) cat /proc/meminfo MemTotal: 4042508 kB MemFree: 3533972 kB Buffers: 50236 kB Cached: 374388 kB SwapCached: 0 kB Active: 154168 kB Inactive: 276496 kB HighTotal: 0 kB HighFree: 0 kB LowTotal: 4042508 kB LowFree: 3533972 kB SwapTotal: 5742364 kB SwapFree: 5742364 kB Dirty: 80 kB Writeback: 0 kB AnonPages: 5868 kB Mapped: 4020 kB Slab: 57212 kB PageTables: 904 kB NFS_Unstable: 0 kB Bounce: 0 kB CommitLimit: 7763616 kB Committed_AS: 19128 kB VmallocTotal: 34359738367 kB VmallocUsed: 3208 kB VmallocChunk: 34359734915 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 Hugepagesize: 2048 kB processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Xeon(TM) CPU 3.20GHz stepping : 3 cpu MHz : 3200.198 cache size : 2048 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 1 fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall lm constant_tsc pni monitor ds_cpl cid cx16 xtpr bogomips : 6405.21 clflush size : 64 cache_alignment : 128 address sizes : 36 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Xeon(TM) CPU 3.20GHz stepping : 3 cpu MHz : 3200.198 cache size : 2048 KB physical id : 3 siblings : 2 core id : 0 cpu cores : 1 fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall lm constant_tsc pni monitor ds_cpl cid cx16 xtpr bogomips : 6400.80 clflush size : 64 cache_alignment : 128 address sizes : 36 bits physical, 48 bits virtual power management: processor : 2 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Xeon(TM) CPU 3.20GHz stepping : 3 cpu MHz : 3200.198 cache size : 2048 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 1 fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall lm constant_tsc pni monitor ds_cpl cid cx16 xtpr bogomips : 6400.98 clflush size : 64 cache_alignment : 128 address sizes : 36 bits physical, 48 bits virtual power management: processor : 3 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Xeon(TM) CPU 3.20GHz stepping : 3 cpu MHz : 3200.198 cache size : 2048 KB physical id : 3 siblings : 2 core id : 0 cpu cores : 1 fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall lm constant_tsc pni monitor ds_cpl cid cx16 xtpr bogomips : 6400.80 clflush size : 64 cache_alignment : 128 address sizes : 36 bits physical, 48 bits virtual power management: - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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