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SubjectRe: [BUG 2.6.24-rc6-mm1] BUG() at check_irqs_on() in fs/buffer.c .

* Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> wrote:

> Hello.
>
> I encountered a BUG().
> I didn't encounter this bug for 2.6.24-rc5-mm1 .
> I guess this bug was introduced between 2.6.24-rc5-mm1 and 2.6.24-rc6-mm1 .

does the patch below help?

Ingo

---
include/asm-x86/desc.h | 4 ++++
1 file changed, 4 insertions(+)

Index: linux/include/asm-x86/desc.h
===================================================================
--- linux.orig/include/asm-x86/desc.h
+++ linux/include/asm-x86/desc.h
@@ -328,7 +328,11 @@ static inline void set_trap_gate(unsigne
static inline void set_system_gate(unsigned int n, void *addr)
{
BUG_ON((unsigned)n > 0xFF);
+#ifdef CONFIG_X86_32
+ _set_gate(n, GATE_TRAP, addr, 0x3, 0, __KERNEL_CS);
+#else
_set_gate(n, GATE_INTERRUPT, addr, 0x3, 0, __KERNEL_CS);
+#endif
}

static inline void set_task_gate(unsigned int n, unsigned int gdt_entry)

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