Messages in this thread | | | Date | Tue, 21 May 2013 08:42:31 +0900 | From | Atsushi Kumagai <> | Subject | Re: Linux doesn't create /proc/vmcore |
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Hello matt,
> CONFIG_PROC_VMCORE=y
Is it specified for the capture kernel ? By any chance, did you run kdump-config on the system kernel, not on the capture kernel ?
> DESCRIPTION > kdump-config manages the kdump feature of the Linux kernel. When a > kdump enabled kernel panics, it immediately boots into a clean kernel > called the kdump kernel. The memory image of the panicked kernel will > be presented in /proc/vmcore while the kdump kernel (or "capture > kernel") is running.
/proc/vmcore doesn't be created on the system kernel, this tool should be run on the capture kernel.
And this document may help you:
Documentation/kdump/kdump.txt
Thanks Atsushi Kumagai
> > my error on the kdump: > kdump-config savecore > running makedumpfile -c -d 31 /proc/vmcore > /var/crash/201305180259/dump-incomplete. > open_dump_memory: Can't open the dump memory(/proc/vmcore). No such > file or directory > > makedumpfile Failed. > kdump-config: makedumpfile failed, falling back to 'cp' ... failed! > cp: cannot stat `/proc/vmcore': No such file or directory > kdump-config: failed to save vmcore in /var/crash/201305180259 ... failed! > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.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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