panic during panic

Mayank Jha

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Jul 3, 2019, 3:03:08 AM7/3/19

to golang-nuts

fatal error: freedefer with d._panic != nil

goroutine 7909027 [running]:
fatal error: unexpected signal during runtime execution
panic during panic
[signal SIGSEGV: segmentation violation code=0x1 addr=0x1c pc=0x459951]

runtime stack:
runtime.throw(0x185c7d9, 0x2a)
	/usr/local/go/src/runtime/panic.go:617 +0x72 fp=0x7f917b585928 sp=0x7f917b5858f8 pc=0x4347a2
runtime.sigpanic()
	/usr/local/go/src/runtime/signal_unix.go:374 +0x260 fp=0x7f917b585960 sp=0x7f917b585928 pc=0x44b080
runtime.gentraceback(0x4347a2, 0xc0021cb148, 0x0, 0xc0021fdb00, 0x0, 0x0, 0x64, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/runtime/traceback.go:150 +0x131 fp=0x7f917b585c38 sp=0x7f917b585960 pc=0x459951
runtime.traceback1(0x4347a2, 0xc0021cb148, 0x0, 0xc0021fdb00, 0x0)
	/usr/local/go/src/runtime/traceback.go:746 +0xff fp=0x7f917b585de0 sp=0x7f917b585c38 pc=0x45beef
runtime.traceback(0x4347a2, 0xc0021cb148, 0x0, 0xc0021fdb00)
	/usr/local/go/src/runtime/traceback.go:700 +0x52 fp=0x7f917b585e18 sp=0x7f917b585de0 pc=0x45bcf2
runtime.dopanic_m(0xc0021fdb00, 0x4347a2, 0xc0021cb148, 0x1849c15)
	/usr/local/go/src/runtime/panic.go:810 +0x1bc fp=0x7f917b585e80 sp=0x7f917b585e18 pc=0x434d9c
runtime.fatalthrow.func1()
	/usr/local/go/src/runtime/panic.go:672 +0x5f fp=0x7f917b585ec8 sp=0x7f917b585e80 pc=0x4633cf
runtime.systemstack(0x7f917b585ee0)
	/usr/local/go/src/runtime/asm_amd64.s:351 +0x66 fp=0x7f917b585ed0 sp=0x7f917b585ec8 pc=0x464a56
runtime.mstart()
	/usr/local/go/src/runtime/proc.go:1153 fp=0x7f917b585ed8 sp=0x7f917b585ed0 pc=0x438970

goroutine 7909027 [running]:
fatal error: unexpected signal during runtime execution
stack trace unavailable

am getting something like this while running my code. With no stack trace. Any ideas about this ?

Lance Oreste

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Jul 3, 2019, 9:24:57 AM7/3/19

to Mayank Jha, golang-nuts

Where is the code?

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Ian Lance Taylor

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Jul 3, 2019, 12:07:33 PM7/3/19

to Mayank Jha, golang-nuts

What version of Go are you using?

Does this happen consistently, or just occasionally?

Is there a way that we can reproduce the problem ourselves?

Thanks.

Ian

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