How to analyse the core dump generated by the user application
My user application developed for ESXi 5.5 occasionally generates signal SIGSEGV, causing in turn core dump generated.
I used this command to enable the generation of core dump in the directory/var/core.
/ sbin/vsish EI configuration/userworld/global/coreDumpEnabled 1
After dump generated, I tried using esxcfg-dumppart to extract the logs of information, according to this link http://kb.vmware.com/selfservice/microsites/search.do?language=en_US & cmd = displayKC & externalId = 1006796
But it seems that this tool is intended only to analyze the kernel image.
/ var/core # esxcfg - dumppart - L appdump - zdump.000
Error running command. Failed to retrieve the log. Cannot find a valid dump VMKernel file. Partition of discharge can be uninitialized.
Is it possible to analyse the core dump generated by application "userland" in ESXi 5.
Thank you
Arun
Hi arunkrish,
OK, this tool (esxcfg-dumppart) is exclusively for the extraction of a file readable to vmkerneltext - zdumps. The recommended method for the guest operating system dumps review is vmss2core which gives you the news crashdump desired in a format readable by the debugger for the OS in question asked. As I understand it, the * zdump.000, * zdump.001, etc., are questions of trapping in the VM (i.e. rather than the GS) level.
I think that only VMware support can read these basic gos/vmx dumps that you are trying to review (I hope I'm wrong). However, you can try your luck opening them in a debugger pro such as IDA Pro (speculation). They have a free trial version.
Tags: VMware
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