diff options
| -rw-r--r-- | sys/amd64/amd64/exception.S | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/amd64/amd64/exception.S b/sys/amd64/amd64/exception.S index 65515aa..c537a4f 100644 --- a/sys/amd64/amd64/exception.S +++ b/sys/amd64/amd64/exception.S @@ -383,10 +383,11 @@ IDTVEC(fast_syscall) movq %rsp,%rdi call syscall 1: movq PCPU(CURPCB),%rax + /* Disable interrupts before testing PCB_FULL_IRET. */ + cli testl $PCB_FULL_IRET,PCB_FLAGS(%rax) jnz 3f /* Check for and handle AST's on return to userland. */ - cli movq PCPU(CURTHREAD),%rax testl $TDF_ASTPENDING | TDF_NEEDRESCHED,TD_FLAGS(%rax) je 2f |
