The patch below does not apply to the 3.8-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.
thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 313751fa7bb9364f320727c2af0735dc9104d188 Mon Sep 17 00:00:00 2001 From: Jan Beulich <[email protected]> Date: Wed, 30 Jan 2013 07:55:53 +0000 Subject: [PATCH] x86-64: Replace left over sti/cli in ia32 audit exit code For some reason they didn't get replaced so far by their paravirt equivalents, resulting in code to be run with interrupts disabled that doesn't expect so (causing, in the observed case, a BUG_ON() to trigger) when syscall auditing is enabled. David (Cc-ed) came up with an identical fix, so likely this can be taken to count as an ack from him. Reported-by: Peter Moody <[email protected]> Signed-off-by: Jan Beulich <[email protected]> Cc: David Vrabel <[email protected]> Cc: Konrad Rzeszutek Wilk <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]> Cc: [email protected] Cc: Konrad Rzeszutek Wilk <[email protected]> Cc: David Vrabel <[email protected]> Tested-by: Peter Moody <[email protected]> diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S index 102ff7c..142c4ce 100644 --- a/arch/x86/ia32/ia32entry.S +++ b/arch/x86/ia32/ia32entry.S @@ -207,7 +207,7 @@ sysexit_from_sys_call: testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) jnz ia32_ret_from_sys_call TRACE_IRQS_ON - sti + ENABLE_INTERRUPTS(CLBR_NONE) movl %eax,%esi /* second arg, syscall return value */ cmpl $-MAX_ERRNO,%eax /* is it an error ? */ jbe 1f @@ -217,7 +217,7 @@ sysexit_from_sys_call: call __audit_syscall_exit movq RAX-ARGOFFSET(%rsp),%rax /* reload syscall return value */ movl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),%edi - cli + DISABLE_INTERRUPTS(CLBR_NONE) TRACE_IRQS_OFF testl %edi,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) jz \exit -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
