Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

runtime: fatal error: unknown caller pc #43942

Closed
mdempsky opened this issue Jan 27, 2021 · 2 comments
Closed

runtime: fatal error: unknown caller pc #43942

mdempsky opened this issue Jan 27, 2021 · 2 comments
Labels
compiler/runtime Issues related to the Go compiler and/or runtime. FrozenDueToAge NeedsFix The path to resolution is known, but the work has not been done.

Comments

@mdempsky
Copy link
Member

This program should run successfully: https://play.golang.org/p/LQbgPxRijfF

But currently it fails when run with cmd/compile with output:

Full runtime output 
runtime: unexpected return pc for main.main.func2.1 called from 0xc00005c0a0
stack: frame={sp:0xc000066ed0, fp:0xc000066ef0} stack=[0xc000066000,0xc000067000)
000000c000066dd0:  00000000004b27a0  000000000055fac8 
000000c000066de0:  000000c000066f00  0000000000000000 
000000c000066df0:  0000000000000000  0000000000000000 
000000c000066e00:  000000c000066e40  00000000004a6fe5 <main.main.func3.1+133> 
000000c000066e10:  00000000004b27a0  000000000055fac8 
000000c000066e20:  0000000000000000  00000000004d4580 
000000c000066e30:  00000000004b27a0  000000000055fac8 
000000c000066e40:  000000c000066e70  000000000046203e <runtime.call32+62> 
000000c000066e50:  00000000004a7075 <main.main.func3+85>  000000c000066f48 
000000c000066e60:  000000c000000180  0000000000000000 
000000c000066e70:  000000c000066f38  000000000043233a <runtime.gopanic+1146> 
000000c000066e80:  0000000000000000  00000000004d4358 
000000c000066e90:  0000000000000000  0000000000000000 
000000c000066ea0:  00000000004ea968  00000000004b8a01 
000000c000066eb0:  00000000004d4340  00000000004d4338 
000000c000066ec0:  000000c00005c0a0  00000000004a6e05 <main.main.func2.1+69> 
000000c000066ed0: <000000c000000180  00000000004d4348 
000000c000066ee0:  000000c00005c0c0 !000000c00005c0a0 
000000c000066ef0: >000000c0000001a8  000000c0000001a0 
000000c000066f00:  000000c000066e50  00000000004b27a0 
000000c000066f10:  00000000004ea970  0000000000000000 
000000c000066f20:  0000000000000000  0000000000000000 
000000c000066f30:  0000000000000100  000000c000066f58 
000000c000066f40:  00000000004a7075 <main.main.func3+85>  00000000004b27a0 
000000c000066f50:  00000000004ea970  000000c000066f78 
000000c000066f60:  00000000004a694a <main.main+74>  01000000004b2260 
000000c000066f70:  00000000004d4328  000000c000066fd0 
000000c000066f80:  0000000000435029 <runtime.main+521>  000000c00005e000 
000000c000066f90:  0000000000000000  000000c00005e000 
000000c000066fa0:  0000000000000000  0100000000000000 
000000c000066fb0:  0000000000000000  000000c000000180 
000000c000066fc0:  000000c000066fae  00000000004d45c0 
000000c000066fd0:  0000000000000000  00000000004638c1 <runtime.goexit+1> 
000000c000066fe0:  0000000000000000  0000000000000000 
fatal error: unknown caller pc

runtime stack:
runtime.throw(0x4ce407, 0x11)
	/usr/local/go-faketime/src/runtime/panic.go:1116 +0x72
runtime.gentraceback(0x4a6e05, 0xc000066ed0, 0x0, 0xc000000180, 0x0, 0x0, 0x7fffffff, 0x7f1916469db8, 0x0, 0x0, ...)
	/usr/local/go-faketime/src/runtime/traceback.go:273 +0x1aec
runtime.addOneOpenDeferFrame.func1()
	/usr/local/go-faketime/src/runtime/panic.go:721 +0x91
runtime.systemstack(0x461b54)
	/usr/local/go-faketime/src/runtime/asm_amd64.s:370 +0x66
runtime.mstart()
	/usr/local/go-faketime/src/runtime/proc.go:1116

goroutine 1 [running]:
runtime.systemstack_switch()
	/usr/local/go-faketime/src/runtime/asm_amd64.s:330 fp=0xc000066d08 sp=0xc000066d00 pc=0x461c80
runtime.addOneOpenDeferFrame(0xc000000180, 0x0, 0x0)
	/usr/local/go-faketime/src/runtime/panic.go:720 +0x7b fp=0xc000066d48 sp=0xc000066d08 pc=0x4318db
panic(0x4b27a0, 0x55fac8)
	/usr/local/go-faketime/src/runtime/panic.go:971 +0x417 fp=0xc000066e10 sp=0xc000066d48 pc=0x4322d7
main.main.func3.1()
	/tmp/sandbox276749924/prog.go:31 +0x85 fp=0xc000066e50 sp=0xc000066e10 pc=0x4a6fe5
runtime.call32(0x0, 0x4d4358, 0x0, 0x0)
	/usr/local/go-faketime/src/runtime/asm_amd64.s:540 +0x3e fp=0xc000066e80 sp=0xc000066e50 pc=0x46203e
panic(0x4b27a0, 0x4ea970)
	/usr/local/go-faketime/src/runtime/panic.go:975 +0x47a fp=0xc000066f48 sp=0xc000066e80 pc=0x43233a
main.main.func3()
	/tmp/sandbox276749924/prog.go:34 +0x55 fp=0xc000066f68 sp=0xc000066f48 pc=0x4a7075
main.main()
	/tmp/sandbox276749924/prog.go:35 +0x4a fp=0xc000066f88 sp=0xc000066f68 pc=0x4a694a
runtime.main()
	/usr/local/go-faketime/src/runtime/proc.go:204 +0x209 fp=0xc000066fe0 sp=0xc000066f88 pc=0x435029
runtime.goexit()
	/usr/local/go-faketime/src/runtime/asm_amd64.s:1374 +0x1 fp=0xc000066fe8 sp=0xc000066fe0 pc=0x4638c1

It succeeds with gccgo and cmd/compile w/ -gcflags=-N. It also still fails at CL 286712, PS 3.

Sorry for another larger reproducer.

/cc @danscales @randall77
@mdempsky mdempsky added the NeedsFix The path to resolution is known, but the work has not been done. label Jan 27, 2021
@mdempsky mdempsky mentioned this issue Jan 27, 2021
Closed
@problame problame mentioned this issue Feb 6, 2021
Open
@bcmills bcmills mentioned this issue Aug 10, 2021
Open
@gopherbot gopherbot added the compiler/runtime Issues related to the Go compiler and/or runtime. label Jul 7, 2022
@cuonglm
Copy link
Member

cuonglm commented Aug 14, 2022

This is fixed after https://go-review.googlesource.com/c/go/+/356011

@cuonglm cuonglm closed this as completed Aug 14, 2022
@cuonglm cuonglm reopened this Aug 14, 2022
@gopherbot
Copy link

Change https://go.dev/cl/423814 mentions this issue: test: add regression test for issue 43942

@golang golang locked and limited conversation to collaborators Aug 16, 2023
Sign up for free to subscribe to this conversation on GitHub. Already have an account? Sign in.
Assignees
No one assigned
Labels
compiler/runtime Issues related to the Go compiler and/or runtime. FrozenDueToAge NeedsFix The path to resolution is known, but the work has not been done.
Projects
None yet
Milestone
No milestone
Development

No branches or pull requests
3 participants
@mdempsky @cuonglm @gopherbot