runtime: invalid address on Plan 9

[0intro]

What steps will reproduce the problem?

Run multiple times:

% all.rc

What is the expected output? What do you see instead?

Sometime, you can see an os/exec or runtime test failing.

--- FAIL: TestExtraFilesRace (0.52 seconds)
    exec_test.go:480: iteration 2, process A got:
        exec.test 244575: suicide: invalid address 0x16c41/220 in sys call pc=0x234c1
        exec.test 244575: suicide: bad address in notify
        fd3: listener 127.0.0.1:32800
        
        want:
        fd3: listener 127.0.0.1:32800
        
FAIL
FAIL    os/exec 1.468s

--- FAIL: TestInitDeadlock (0.34 seconds)
    crash_test.go:92: output does not start with "fatal error: all goroutines are asleep - deadlock!\n":
        go 248505: suicide: invalid address 0x5f0d1/220 in sys call pc=0x6ad71
        go 248505: suicide: bad address in notify
        fatal error: all goroutines are asleep - deadlock!
        
        goroutine 17 [syscall]:
        runtime.notetsleepg(0x3027ed9c, 0xf8475800, 0xd)
            /tmp/gobuilder/plan9-386-cnielsen-9623db1cea87/go/src/pkg/runtime/lock_sema.c:254 +0x70
        runtime.MHeap_Scavenger()
            /tmp/gobuilder/plan9-386-cnielsen-9623db1cea87/go/src/pkg/runtime/mheap.c:458 +0xc2
        runtime.goexit()
            /tmp/gobuilder/plan9-386-cnielsen-9623db1cea87/go/src/pkg/runtime/proc.c:1438
        
        goroutine 16 [select (no cases)]:
        main.init·1()
            /tmp/go-build053645721/main.go:4 +0x1d
        main.init()
            /tmp/go-build053645721/main.go:7 +0x3d
        exit status: 'main 248510: 2'
FAIL
FAIL    runtime 72.977s

[0intro]

Comment 1:

# go run run.go -- func8.go
incorrect output
go 1710: suicide: invalid address 0x44467/220 in sys call pc=0x6c72e
go 1710: suicide: bad address in notify
FAIL    func8.go    0.373s
cpu% acid 1710
/proc/1710/text:386 plan 9 executable
/sys/lib/acid/port
/sys/lib/acid/386
acid: asm(*PC)
runtime.rfork+0x2e 0x0006c72e   MOVL    AX,0x2c(BX)
runtime.rfork+0x31 0x0006c731   CALL    runtime.stackcheck(SB)
runtime.rfork+0x36 0x0006c736   MOVL    0x0(DX),DX
runtime.rfork+0x38 0x0006c738   MOVL    0x0(BX),BX
runtime.rfork+0x3a 0x0006c73a   PUSHL   SI
runtime.rfork+0x3b 0x0006c73b   CALL    runtime.emptyfunc(SB)
runtime.rfork+0x40 0x0006c740   POPL    SI
runtime.rfork+0x41 0x0006c741   CALL*   SI
runtime.rfork+0x43 0x0006c743   CALL    runtime.exit(SB)
runtime.rfork+0x48 0x0006c748   RET
runtime.rfork+0x49 0x0006c749   ADDB    AL,0x0(AX)
runtime.rfork+0x4b 0x0006c74b   ADDB    AL,0x0(AX)
runtime.rfork+0x4d 0x0006c74d   ADDB    AL,0x0(AX)
runtime.rfork+0x4f 0x0006c74f   ADDB    CL,0x6d75cc05(BX)
acid: �
echo kill > /proc/1710/ctl
cpu%

[0intro]

Comment 2:

Fixed by CL 64140043.

Status changed to Fixed.