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* stacktrace: fix modular build, export print_stack_trace and save_stack_traceIngo Molnar2008-06-301-0/+2
| | | | | | | | | | | | | | | | | | fix: ERROR: "print_stack_trace" [kernel/backtracetest.ko] undefined! ERROR: "save_stack_trace" [kernel/backtracetest.ko] undefined! Signed-off-by: Ingo Molnar <mingo@elte.hu> and fix: Building modules, stage 2. MODPOST 376 modules ERROR: "print_stack_trace" [kernel/backtracetest.ko] undefined! make[1]: *** [__modpost] Error 1 Signed-off-by: Ingo Molnar <mingo@elte.hu>
* stacktrace: print_stack_trace() cleanupVegard Nossum2008-06-131-6/+3
| | | | | | | | | | - shorter code and better atomicity with regards to printk(). (It's been tested with the backtrace self-test code on i386 and x86_64.) Cc: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* stacktrace: don't crash on invalid stack trace structsJohannes Berg2008-05-241-0/+3
| | | | | | | | | | | | | | 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>
* [PATCH] lockdep: stacktrace subsystem, coreIngo Molnar2006-07-031-0/+24
Framework to generate and save stacktraces quickly, without printing anything to the console. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>