[PATCH 1/7] i386, dumpstack: Move crash_kexec before bust_spinlocks(0) in oops_end

Alexander van Heukelum heukelum at fastmail.fm
Wed Oct 22 06:00:08 EDT 2008


crash_kexec should not be called with console_sem held. Move
the call before bust_spinlocks(0) in oops_end to avoid the
problem.

Signed-off-by: Alexander van Heukelum <heukelum at fastmail.fm>
Cc: "Neil Horman" <nhorman at tuxdriver.com>
---
 arch/x86/kernel/dumpstack_32.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c
index b361475..5493d31 100644
--- a/arch/x86/kernel/dumpstack_32.c
+++ b/arch/x86/kernel/dumpstack_32.c
@@ -309,6 +309,9 @@ unsigned __kprobes long oops_begin(void)
 
 void __kprobes oops_end(unsigned long flags, struct pt_regs *regs, int signr)
 {
+	if (regs && kexec_should_crash(current))
+		crash_kexec(regs);
+
 	bust_spinlocks(0);
 	die_owner = -1;
 	add_taint(TAINT_DIE);
@@ -318,8 +321,6 @@ void __kprobes oops_end(unsigned long flags, struct pt_regs *regs, int signr)
 	if (!regs)
 		return;
 
-	if (kexec_should_crash(current))
-		crash_kexec(regs);
 	if (in_interrupt())
 		panic("Fatal exception in interrupt");
 	if (panic_on_oops)
-- 
1.5.4.3




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