runtime: integer divide by zero check doesn't work on ARM #5805
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Still broken for me.
$ uname -a
Linux nsa310 3.5.1 #1 Mon Sep 24 19:17:28 CEST 2012 armv5tel GNU/Linux
$ go version
go version devel +77a4d225cc7e Wed Sep 11 10:50:56 2013 +1000 linux/arm
$ cat issue5805.go
package main
func main() {
a := 0
b := 1 / a
_ = b
}
$ go run issue5805.go
runtime: unknown argument frame size for udiv called from 0x10c38 [main.main]
fatal error: invalid stack
goroutine 1 [garbage collection]:
runtime.gc(0x0)
/home/ceh/src/go/src/pkg/runtime/mgc0.c:2020 +0x1a0 fp=0xb6f37eac
runtime.mallocgc(0x8, 0x0, 0x0)
/home/ceh/src/go/src/pkg/runtime/malloc.goc:143 +0x210 fp=0xb6f37ee8
runtime.mal(0x8)
/home/ceh/src/go/src/pkg/runtime/malloc.goc:700 +0x38 fp=0xb6f37ef8
copyin(0x37150, 0xb6f37f38, 0xb6f37f44)
/home/ceh/src/go/src/pkg/runtime/iface.c:153 +0x6c fp=0xb6f37f14
runtime.convT2E(0x37150, 0x64368, 0x16, 0x37150, 0x16)
/home/ceh/src/go/src/pkg/runtime/iface.c:221 +0x44 fp=0xb6f37f30
runtime.newErrorString(0x64368, 0x16, 0xb6f37f60)
/home/ceh/src/go/src/pkg/runtime/error.go:74 +0x3c fp=0xb6f37f48
runtime.panicstring(0x64368)
/home/ceh/src/go/src/pkg/runtime/panic.c:519 +0x84 fp=0xb6f37f68
runtime.panicdivide()
/home/ceh/src/go/src/pkg/runtime/vlrt_arm.c:42 +0x2c fp=0xb6f37f70
runtime: unknown argument frame size for udiv called from 0x10c38 [main.main]
udiv()
/home/ceh/src/go/src/pkg/runtime/vlop_arm.s:171 +0x9c fp=0xb6f37f70
main.main()
/home/ceh/src/issue5805.go:5 +0x38 fp=0xb6f37f7c
runtime: unexpected return pc for main.main called from 0x0
main.main()
/home/ceh/src/issue5805.go:5 +0x38 fp=0xb6f37f88
goroutine 2 [runnable]:
runtime.MHeap_Scavenger()
/home/ceh/src/go/src/pkg/runtime/mheap.c:439
runtime.goexit()
/home/ceh/src/go/src/pkg/runtime/proc.c:1386
exit status 2
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This issue was closed by revision b2794a1. Status changed to Fixed. |
CL https://golang.org/cl/13632048 references this issue. |
CL https://golang.org/cl/13632048 references this issue. |
This issue was closed.
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by capnm9:
hg id 166d946fa77f tip This is a regression from go1.1.1. func main() { a := 0 b := 1 / a _ = b } uname -a Linux rpi 3.6.11+ #474 PREEMPT Thu Jun 13 17:14:42 BST 2013 armv6l GNU/Linux GOTRACEBACK=2; go run main.go runtime: unknown pc 0x1 at frame 11 fatal error: invalid stack goroutine 1 [garbage collection]: runtime.gc(0x0) /d/go/src/pkg/runtime/mgc0.c:2019 +0x1cc fp=0xb6eb5ecc runtime.mallocgc(0x8, 0x0, 0x1, 0x1) /d/go/src/pkg/runtime/zmalloc_linux_arm.c:103 +0x1d4 fp=0xb6eb5f00 runtime.mal(0x8) /d/go/src/pkg/runtime/zmalloc_linux_arm.c:665 +0x40 fp=0xb6eb5f14 copyin(0x2da28, 0xb6eb5f54, 0xb6eb5f60) /d/go/src/pkg/runtime/iface.c:152 +0x64 fp=0xb6eb5f30 runtime.convT2E(0x2da28, 0x520c0, 0x16, 0x2da28, 0x16, ...) /d/go/src/pkg/runtime/iface.c:220 +0x44 fp=0xb6eb5f4c runtime.newErrorString(0x520c0, 0x16, 0xb6eb5f7c) /d/go/src/pkg/runtime/error.go:74 +0x3c fp=0xb6eb5f64 runtime.panicstring(0x520c0) /d/go/src/pkg/runtime/panic.c:489 +0x7c fp=0xb6eb5f84 runtime.panicdivide() /d/go/src/pkg/runtime/vlrt_arm.c:40 +0x2c fp=0xb6eb5f8c udiv(0x1) /d/go/src/pkg/runtime/vlop_arm.s:139 +0x9c fp=0xb6eb5f8c main.main() /tmp/main.go:7 +0x38 fp=0xb6eb5f90 main.main() /tmp/main.go:7 +0x38 fp=0xb6eb5f94 goroutine 2 [runnable]: runtime.MHeap_Scavenger() /d/go/src/pkg/runtime/mheap.c:438 runtime.goexit() /d/go/src/pkg/runtime/proc.c:1269 created by runtime.main /d/go/src/pkg/runtime/proc.c:165 exit status 2 ---- /d/go1.1.1/bin/go run main.go panic: runtime error: integer divide by zero goroutine 1 [running]: runtime.panic(0x336e8, 0x10100008) /d/go1.1.1/src/pkg/runtime/panic.c:247 +0x128 runtime.panicstring(0x47088) /d/go1.1.1/src/pkg/runtime/panic.c:487 +0x8c runtime.panicdivide() /d/go1.1.1/src/pkg/runtime/vlrt_arm.c:40 +0x28 udiv() /d/go1.1.1/src/pkg/runtime/vlop_arm.s:139 +0x9c main.main() /tmp/main.go:7 +0x34 goroutine 2 [runnable]: runtime.MHeap_Scavenger() /d/go1.1.1/src/pkg/runtime/mheap.c:421 runtime.goexit() /d/go1.1.1/src/pkg/runtime/proc.c:1223 created by runtime.main /d/go1.1.1/src/pkg/runtime/proc.c:165 exit status 2 ---- uname -a Linux t2t 3.8.0-23-generic #34-Ubuntu SMP Wed May 29 20:22:58 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux GOTRACEBACK=1; go run main.go panic: runtime error: integer divide by zero [signal 0x8 code=0x1 addr=0x400c12 pc=0x400c12] goroutine 1 [running]: main.main() /tmp/main.go:7 +0x12 goroutine 2 [runnable]: runtime.MHeap_Scavenger() /d/go/src/pkg/runtime/mheap.c:438 runtime.goexit() /d/go/src/pkg/runtime/proc.c:1269 created by runtime.main /d/go/src/pkg/runtime/proc.c:165 exit status 2The text was updated successfully, but these errors were encountered: