From 57c351de715458f8fbee1e92e8cc65ddc00da04c Mon Sep 17 00:00:00 2001 From: Arjan van de Ven Date: Mon, 26 Nov 2007 20:42:19 +0100 Subject: [PATCH] x86: printk kernel version in WARN_ON and other dump_stack users today, all oopses contain a version number of the kernel, which is nice because the people who actually do bother to read the oops get this vital bit of information always without having to ask the reporter in another round trip. However, WARN_ON() and many other dump_stack() users right now lack this information; the patch below adds this. This information is essential for getting people to use their time effectively when looking at these things; in addition, it's essential for tools that try to collect statistics about defects. Please consider, since its so simple and important for long term kernel quality processes. The code is identical between 32/64 bit; a lot of this code should be unified over time, the patch keeps the identical-ness intact. Signed-off-by: Arjan van de Ven Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- arch/x86/kernel/traps_32.c | 5 +++++ arch/x86/kernel/traps_64.c | 7 +++++++ 2 files changed, 12 insertions(+) diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c index 298d13ed3a..0a4c893824 100644 --- a/arch/x86/kernel/traps_32.c +++ b/arch/x86/kernel/traps_32.c @@ -283,6 +283,11 @@ void dump_stack(void) { unsigned long stack; + printk("Pid: %d, comm: %.20s %s %s %.*s\n", + current->pid, current->comm, print_tainted(), + init_utsname()->release, + (int)strcspn(init_utsname()->version, " "), + init_utsname()->version); show_trace(current, NULL, &stack); } diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c index 4a6bd4965f..1384e34a65 100644 --- a/arch/x86/kernel/traps_64.c +++ b/arch/x86/kernel/traps_64.c @@ -31,6 +31,7 @@ #include #include #include +#include #if defined(CONFIG_EDAC) #include @@ -400,6 +401,12 @@ void show_stack(struct task_struct *tsk, unsigned long * rsp) void dump_stack(void) { unsigned long dummy; + + printk("Pid: %d, comm: %.20s %s %s %.*s\n", + current->pid, current->comm, print_tainted(), + init_utsname()->release, + (int)strcspn(init_utsname()->version, " "), + init_utsname()->version); show_trace(NULL, NULL, &dummy); } -- 2.39.5