NAME
|
ktrace – interpret kernel stack dumps |
SYNOPSIS
|
ktrace [ –i ] kernel pc sp [ link ] |
DESCRIPTION
|
Ktrace translates a hexadecimal kernel stack dump into a sequence
of acid(1) commands to show the points in the call trace. The
kernel argument should be the path of the kernel being debugged,
and pc and sp are the PC and SP values given in the stack dump.
For MIPS kernels, the contents of the link register must
also be supplied.
A stack trace consists of a ktrace command followed by a series
of lines containing fields of the form location=contents: The trace can be edited to provide the correct kernel path and then pasted into a shell window. If the –i option is present, ktrace instead prompts for the contents of the memory locations in which it is interested; this is useful when the stack trace is on a screen rather than in a machine readable form. |
SOURCE
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/sys/src/cmd/ktrace.c |
SEE ALSO
|
acid(1), rdbfs(4) |
BUGS
|
When examining a kernel trace resulting from an interrupt on top
of other interrupts, only the topmost call trace is printed. |