Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=83ce6ef8408bbc7d9322ab50ba592f83012dea94
Commit: 83ce6ef8408bbc7d9322ab50ba592f83012dea94
Parent: 7dcca30a32aadb0520417521b0c44f42d09fe05c
Author: Tony Luck <[EMAIL PROTECTED]>
AuthorDate: Thu Jun 28 16:05:34 2007 -0700
Committer: Tony Luck <[EMAIL PROTECTED]>
CommitDate: Mon Jul 9 10:30:28 2007 -0700
[IA64] Don't set psr.ic and psr.i simultaneously
It's not a good idea to use "ssm psr.ic | psr.i" to simultaneously
enable interrupts and interrupt state collection, the two bits can
take effect asynchronously, so it is possible for an interrupt to
be serviced while psr.ic is still zero.
Signed-off-by: Tony Luck <[EMAIL PROTECTED]>
---
arch/ia64/kernel/mca_drv_asm.S | 6 +++++-
1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/arch/ia64/kernel/mca_drv_asm.S b/arch/ia64/kernel/mca_drv_asm.S
index f2d4900..3bccb06 100644
--- a/arch/ia64/kernel/mca_drv_asm.S
+++ b/arch/ia64/kernel/mca_drv_asm.S
@@ -40,7 +40,11 @@ GLOBAL_ENTRY(mca_handler_bhhook)
mov b6=loc1
;;
mov loc1=rp
- ssm psr.i | psr.ic
+ ssm psr.ic
+ ;;
+ srlz.i
+ ;;
+ ssm psr.i
br.call.sptk.many rp=b6 // does not return ...
;;
mov ar.pfs=loc0
-
To unsubscribe from this list: send the line "unsubscribe git-commits-head" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
