From: Andres Lagar-Cavilla <andres@lagarcavilla.org>
To: xen-devel@lists.xen.org
Cc: andres@gridcentric.ca, tim@xen.org
Subject: [PATCH 1 of 6] x86/mm: Print stack trace on a an mm-locks deadlock panic
Date: Fri, 13 Apr 2012 12:22:19 -0400 [thread overview]
Message-ID: <aa4ef559da60be600833.1334334139@xdev.gridcentric.ca> (raw)
In-Reply-To: <patchbomb.1334334138@xdev.gridcentric.ca>
xen/arch/x86/mm/mm-locks.h | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
Signed-off-by: Andres Lagar-Cavilla <andres@lagarcavilla.org>
diff -r 7b606c043208 -r aa4ef559da60 xen/arch/x86/mm/mm-locks.h
--- a/xen/arch/x86/mm/mm-locks.h
+++ b/xen/arch/x86/mm/mm-locks.h
@@ -50,8 +50,11 @@ static inline int mm_locked_by_me(mm_loc
#define __check_lock_level(l) \
do { \
if ( unlikely(__get_lock_level()) > (l) ) \
+ { \
+ WARN(); \
panic("mm locking order violation: %i > %i\n", \
__get_lock_level(), (l)); \
+ } \
} while(0)
#define __set_lock_level(l) \
next prev parent reply other threads:[~2012-04-13 16:22 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-13 16:22 [PATCH 0 of 6] x86/mm/shadow: fixes and synchronized p2m lookups Andres Lagar-Cavilla
2012-04-13 16:22 ` Andres Lagar-Cavilla [this message]
2012-04-18 15:55 ` [PATCH 1 of 6] x86/mm: Print stack trace on a an mm-locks deadlock panic Tim Deegan
2012-04-18 15:58 ` Andres Lagar-Cavilla
2012-04-13 16:22 ` [PATCH 2 of 6] x86/mm/shadow: enclose an OOS function in the proper conditional ifdef Andres Lagar-Cavilla
2012-04-14 14:08 ` Gianluca Guida
2012-04-18 15:52 ` Tim Deegan
2012-04-13 16:22 ` [PATCH 3 of 6] x86/mm/shadow: fix potential p2m/paging deadlock when emulating page table writes Andres Lagar-Cavilla
2012-04-18 16:13 ` Tim Deegan
2012-04-18 16:25 ` Andres Lagar-Cavilla
2012-04-19 14:51 ` Tim Deegan
2012-04-19 15:07 ` Andres Lagar-Cavilla
2012-04-13 16:22 ` [PATCH 4 of 6] x86/mm/shadow: fix p2m/paging deadlock when updating shadow mode Andres Lagar-Cavilla
2012-04-13 16:22 ` [PATCH 5 of 6] x86/mm/shadow: fix p2m/paging deadlock when updating shadow cr3 Andres Lagar-Cavilla
2012-04-13 16:22 ` [PATCH 6 of 6] x86/mm: Locking p2m lookups in shadow mode Andres Lagar-Cavilla
2012-04-18 16:03 ` Tim Deegan
2012-04-13 17:35 ` [PATCH 0 of 6] x86/mm/shadow: fixes and synchronized p2m lookups Tim Deegan
2012-04-13 17:37 ` Andres Lagar-Cavilla
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