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bfeeeeb991
This patch makes the stacktrace printout code \warn when the entries pointer is unset rather than crashing when trying to access it in an attempt to make it a bit more robust. I was saving a stacktrace into an skb and forgot to copy it across skb copies... I have since fixed the code, but it would have been easier had the kernel not crashed in an interrupt. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
28 lines
504 B
C
28 lines
504 B
C
/*
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* kernel/stacktrace.c
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*
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* Stack trace management functions
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*
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* Copyright (C) 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
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*/
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#include <linux/sched.h>
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#include <linux/kallsyms.h>
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#include <linux/stacktrace.h>
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void print_stack_trace(struct stack_trace *trace, int spaces)
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{
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int i, j;
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if (WARN_ON(!trace->entries))
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return;
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for (i = 0; i < trace->nr_entries; i++) {
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unsigned long ip = trace->entries[i];
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for (j = 0; j < spaces + 1; j++)
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printk(" ");
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print_ip_sym(ip);
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}
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}
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