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| author |   Jeremy Fitzhardinge <jeremy@goop.org> | 2008-07-08 15:06:30 -0700 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2008-07-16 10:55:21 +0200 |
| commit | 8ba6c2b0958c332d2f3336f4ca9c116ed81f38e9 (patch) | |
| tree | 6a243a44973d39bc69f42b8453a1ef8b9f3cc6fe | |
| parent | x86_64: unstatic get_local_pda (diff) | |
| download | linux-dev-8ba6c2b0958c332d2f3336f4ca9c116ed81f38e9.tar.xz linux-dev-8ba6c2b0958c332d2f3336f4ca9c116ed81f38e9.zip | |
xen: print backtrace on multicall failure
Print a backtrace if a multicall fails, to help with debugging.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | arch/x86/xen/multicalls.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/xen/multicalls.c b/arch/x86/xen/multicalls.c index 3c63c4da7ed1..9efd1c6c9776 100644 --- a/arch/x86/xen/multicalls.c +++ b/arch/x86/xen/multicalls.c @@ -76,6 +76,7 @@ void xen_mc_flush(void) if (ret) { printk(KERN_ERR "%d multicall(s) failed: cpu %d\n", ret, smp_processor_id()); + dump_stack(); for (i = 0; i < b->mcidx; i++) { printk(" call %2d/%d: op=%lu arg=[%lx] result=%ld\n", i+1, b->mcidx, |