diff options
author | Aurelien Jarno <aurelien@aurel32.net> | 2007-05-22 11:38:26 -0400 |
---|---|---|
committer | Kyle McMartin <kyle@athena.road.mcmartin.ca> | 2007-05-22 22:44:11 -0400 |
commit | b5e8b733a18a1192666005f95f44e02440b057d4 (patch) | |
tree | 3d1433f88e51860915423fd1f23fb9251e6c8747 /arch | |
parent | 2cbd42dbf8887c8742f8e6a286c7e5f4f5ddb56b (diff) |
[PARISC] Disable LWS debugging
The LWS debugging code on parisc is wrongly enabled due to a bug in the
use of the preprocessor directives. This debugging code is not thread
safe and causes problems with a recent glibc on SMP kernels.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/parisc/kernel/syscall.S | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S index 10859f53e94f..4603032d56ef 100644 --- a/arch/parisc/kernel/syscall.S +++ b/arch/parisc/kernel/syscall.S | |||
@@ -501,7 +501,7 @@ lws_compare_and_swap: | |||
501 | shlw %r20, 4, %r20 | 501 | shlw %r20, 4, %r20 |
502 | add %r20, %r28, %r20 | 502 | add %r20, %r28, %r20 |
503 | 503 | ||
504 | # ifdef ENABLE_LWS_DEBUG | 504 | # if ENABLE_LWS_DEBUG |
505 | /* | 505 | /* |
506 | DEBUG, check for deadlock! | 506 | DEBUG, check for deadlock! |
507 | If the thread register values are the same | 507 | If the thread register values are the same |
@@ -550,7 +550,7 @@ cas_wouldblock: | |||
550 | perspective | 550 | perspective |
551 | */ | 551 | */ |
552 | cas_action: | 552 | cas_action: |
553 | #if defined CONFIG_SMP && defined ENABLE_LWS_DEBUG | 553 | #if defined CONFIG_SMP && ENABLE_LWS_DEBUG |
554 | /* DEBUG */ | 554 | /* DEBUG */ |
555 | mfctl %cr27, %r1 | 555 | mfctl %cr27, %r1 |
556 | stw %r1, 4(%sr2,%r20) | 556 | stw %r1, 4(%sr2,%r20) |
@@ -562,7 +562,7 @@ cas_action: | |||
562 | #ifdef CONFIG_SMP | 562 | #ifdef CONFIG_SMP |
563 | /* Free lock */ | 563 | /* Free lock */ |
564 | stw %r20, 0(%sr2,%r20) | 564 | stw %r20, 0(%sr2,%r20) |
565 | # ifdef ENABLE_LWS_DEBUG | 565 | # if ENABLE_LWS_DEBUG |
566 | /* Clear thread register indicator */ | 566 | /* Clear thread register indicator */ |
567 | stw %r0, 4(%sr2,%r20) | 567 | stw %r0, 4(%sr2,%r20) |
568 | # endif | 568 | # endif |
@@ -576,7 +576,7 @@ cas_action: | |||
576 | #ifdef CONFIG_SMP | 576 | #ifdef CONFIG_SMP |
577 | /* Free lock */ | 577 | /* Free lock */ |
578 | stw %r20, 0(%sr2,%r20) | 578 | stw %r20, 0(%sr2,%r20) |
579 | # ifdef ENABLE_LWS_DEBUG | 579 | # if ENABLE_LWS_DEBUG |
580 | stw %r0, 4(%sr2,%r20) | 580 | stw %r0, 4(%sr2,%r20) |
581 | # endif | 581 | # endif |
582 | #endif | 582 | #endif |