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fixing kernel breakage when futex freezes

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git-svn-id: svn://kolibrios.org@9869 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Doczom 2022-08-10 11:57:08 +00:00
parent ec9a93aa6a
commit e25f14c9ba
1 changed files with 7 additions and 4 deletions
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11
kernel/trunk/posix/futex.inc
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@ -185,28 +185,31 @@ align 4
lea esi, [ebp + FUTEX.wait_list] lea esi, [ebp + FUTEX.wait_list]
list_add_tail esp, esi ;esp= new waiter, esi= list head list_add_tail esp, esi ;esp= new waiter, esi= list head
sti
.again_timeout: .again_timeout:
call change_task call change_task
mov eax, [ebx + APPDATA.wait_param] mov eax, [ebx + APPDATA.wait_param]
test eax, eax test eax, eax
jz .timeout jz .timeout
DEBUGF 1, "FUTEX no timeout [ecx]=%x edx=%x\n", [ecx], edx
mov eax, edx mov eax, edx
lock cmpxchg [ecx], edx lock cmpxchg [ecx], edx
jz .again_timeout jz .again_timeout
@@: @@:
cli
list_del esp list_del esp
sti
add esp, sizeof.MUTEX_WAITER add esp, sizeof.MUTEX_WAITER
popfd popfd
mov [esp + SYSCALL_STACK.eax], 0 mov [esp + SYSCALL_STACK.eax], 0
ret ret
.timeout: .timeout:
cli
list_del esp list_del esp
sti
add esp, sizeof.MUTEX_WAITER add esp, sizeof.MUTEX_WAITER
DEBUGF 1, "FUTEX timeout\n"
popfd popfd
mov [esp + SYSCALL_STACK.eax], -1 mov [esp + SYSCALL_STACK.eax], -1
ret ret