Messages in this thread | | | Date | Fri, 10 Aug 2007 09:40:00 +0200 | From | Ingo Molnar <> | Subject | Re: 2.6.23-rc2-mm1: sleeping function called from invalid context at kernel/mutex.c:86 |
| |
* Andrew Morton <akpm@linux-foundation.org> wrote:
> We seem to have made a mess in there. timer_list_show() ends up > calling lookup_module_symbol_name(), which takes a mutex. However > print_symbol() (which is called at oops time, interrupt time, etc) > calls module_address_lookup(), which is basically the same, only it > doesn't take the mutex.
hm, current upstream does:
static void print_name_offset(struct seq_file *m, void *sym) { char symname[KSYM_NAME_LEN];
if (lookup_symbol_name((unsigned long)sym, symname) < 0)
why was that changed? I think symbol lookups for debug purposes have to be lockless, fundamentally.
Ingo - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |