Re: [go-nuts] delve crashes in presence of a circular reference variable

2023-06-23 Thread Jan Mercl 
On Fri, Jun 23, 2023 at 10:38 AM christoph...@gmail.com
 wrote:
>
> Here is the minimal example code causing delve 1.20.2 to crash with a stack 
> overflow
>
> func TestExample(t *testing.T)  {
> type pptr *pptr
> var p pptr
> p = 
> t.Error("hello")
> }
>
> Here is the stack trace

I guess you may get better feedback by issuing the report at
https://github.com/go-delve/delve/issues.

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[go-nuts] delve crashes in presence of a circular reference variable

2023-06-23 Thread christoph...@gmail.com 
Here is the minimal example code causing delve 1.20.2 to crash with a stack 
overflow

func TestExample(t *testing.T)  {
type pptr *pptr
var p pptr
p = 
t.Error("hello")
}

Here is the stack trace

goroutine 6 [running]:
runtime.deductAssistCredit(0x108?)
/usr/local/go/src/runtime/malloc.go:1201 +0x7b fp=0xc021380360 
sp=0xc021380358 pc=0x40f8db
runtime.mallocgc(0x108, 0xa9d2e0, 0x1)
/usr/local/go/src/runtime/malloc.go:932 +0xd0 fp=0xc0213803c8 
sp=0xc021380360 pc=0x40f0d0
runtime.newobject(0x7fa133558108?)
/usr/local/go/src/runtime/malloc.go:1254 +0x27 fp=0xc0213803f0 
sp=0xc0213803c8 pc=0x40f9e7
github.com/go-delve/delve/pkg/proc.newVariable({0x0, 0x0}, 0xc000104e48, 
{0xb98be8?, 0xc000e7a6c0?}, 0xc0002fc2c0, {0xb93350?, 0xc0002b8ac0})
/home/meessen/go/pkg/mod/github.com/go-delve/delve@v1.20.2/pkg/proc/variables.go:635
 
+0x2d0 fp=0xc021380498 sp=0xc0213803f0 pc=0x7607f0
github.com/go-delve/delve/pkg/proc.(*Variable).newVariable(...)
/home/meessen/go/pkg/mod/github.com/go-delve/delve@v1.20.2/pkg/proc/variables.go:606
github.com/go-delve/delve/pkg/proc.(*Variable).loadPtr(0xc01cfae120)
/home/meessen/go/pkg/mod/github.com/go-delve/delve@v1.20.2/pkg/proc/variables.go:1266
 
+0x11b fp=0xc021380510 sp=0xc021380498 pc=0x764ddb
github.com/go-delve/delve/pkg/proc.(*Variable).loadValueInternal(0xc01cfae120, 
0x0, {0x1, 0x1, 0x200, 0x40, 0x, 0x1900})
/home/meessen/go/pkg/mod/github.com/go-delve/delve@v1.20.2/pkg/proc/variables.go:1303
 
+0xad2 fp=0xc021380708 sp=0xc021380510 pc=0x765b72
github.com/go-delve/delve/pkg/proc.(*Variable).loadValueInternal(0xc01cfade60, 
0x0, {0x1, 0x1, 0x200, 0x40, 0x, 0x1900})
/home/meessen/go/pkg/mod/github.com/go-delve/delve@v1.20.2/pkg/proc/variables.go:1311
 
+0xb45 fp=0xc021380900 sp=0xc021380708 pc=0x765be5
github.com/go-delve/delve/pkg/proc.(*Variable).loadValueInternal(0xc01cfadc20, 
0x0, {0x1, 0x1, 0x200, 0x40, 0x, 0x1900})
/home/meessen/go/pkg/mod/github.com/go-delve/delve@v1.20.2/pkg/proc/variables.go:1311
 
+0xb45 fp=0xc021380af8 sp=0xc021380900 pc=0x765be5
github.com/go-delve/delve/pkg/proc.(*Variable).loadValueInternal(0xc01cfad9e0, 
0x0, {0x1, 0x1, 0x200, 0x40, 0x, 0x1900})
/home/meessen/go/pkg/mod/github.com/go-delve/delve@v1.20.2/pkg/proc/variables.go:1311
 
+0xb45 fp=0xc021380cf0 sp=0xc021380af8 pc=0x765be5
github.com/go-delve/delve/pkg/proc.(*Variable).loadValueInternal(0xc01cfad7a0, 
0x0, {0x1, 0x1, 0x200, 0x40, 0x, 0x1900})
/home/meessen/go/pkg/mod/github.com/go-delve/delve@v1.20.2/pkg/proc/variables.go:1311
 
+0xb45 fp=0xc021380ee8 sp=0xc021380cf0 pc=0x765be5
github.com/go-delve/delve/pkg/proc.(*Variable).loadValueInternal(0xc01cfad560, 
0x0, {0x1, 0x1, 0x200, 0x40, 0x, 0x1900})
/home/meessen/go/pkg/mod/github.com/go-delve/delve@v1.20.2/pkg/proc/variables.go:1311
 
+0xb45 fp=0xc0213810e0 sp=0xc021380ee8 pc=0x765be5
github.com/go-delve/delve/pkg/proc.(*Variable).loadValueInternal(0xc01cfad320, 
0x0, {0x1, 0x1, 0x200, 0x40, 0x, 0x1900})
/home/meessen/go/pkg/mod/github.com/go-delve/delve@v1.20.2/pkg/proc/variables.go:1311
 
+0xb45 fp=0xc0213812d8 sp=0xc0213810e0 pc=0x765be5
github.com/go-delve/delve/pkg/proc.(*Variable).loadValueInternal(0xc01cfad0e0, 
0x0, {0x1, 0x1, 0x200, 0x40, 0x, 0x1900})
. . .

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