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cmd/link: panic with index out of range in cmd/link/internal/loader.(*Loader).resolve #62355

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gopherbot opened this issue Aug 29, 2023 · 7 comments
Open

cmd/link: panic with index out of range in cmd/link/internal/loader.(*Loader).resolve #62355

gopherbot opened this issue Aug 29, 2023 · 7 comments
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compiler/runtime Issues related to the Go compiler and/or runtime. NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
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@gopherbot
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gopherbot commented Aug 29, 2023 •
edited by bcmills 

#!watchflakes
post <- log ~ `panic: runtime error: index out of range` && log ~ `^\s*cmd/link/internal/loader\.\(\*Loader\)\.resolve`

Issue created automatically to collect these failures.

Example (log):

panic: runtime error: index out of range [2147483635] with length 6

goroutine 22 [running]:
cmd/link/internal/loader.(*Loader).resolve(0xc000142a80, 0xc000070680, {0x7ffffff3, 0x1f})
	cmd/link/internal/loader/loader.go:658 +0x2ac
cmd/link/internal/loader.Reloc.Sym({0x7fffaa5498c1, 0xc000070680, 0xc000142a80})
	cmd/link/internal/loader/loader.go:61 +0x94
cmd/link/internal/ld.(*relocSymState).relocsym(0xc001200ef0, 0xb3aa, {0x7fffa94071a0, 0xf8, 0x204e60})
	cmd/link/internal/ld/data.go:202 +0x148
cmd/link/internal/ld.writeBlock(0xc000174200, 0xc0000b6070, 0xc000142a80, {0xc001208000, 0x57c2, 0x57c2}, 0x2b0000, 0x114140, {0x52bae0, 0x200, ...})
	cmd/link/internal/ld/data.go:1084 +0x410
cmd/link/internal/ld.writeBlocks.func1(0xc0000b6070, 0xc000142a80, {0xc001208000, 0x57c2, 0x57c2}, 0x2b0000, 0x114140, {0x52bae0, 0x200, 0x200})
	cmd/link/internal/ld/data.go:1040 +0x90
created by cmd/link/internal/ld.writeBlocks in goroutine 62
	cmd/link/internal/ld/data.go:1039 +0x4a8
go tool dist: FAILED: /tmp/workdir-host-linux-loong64-3a5000/go/pkg/tool/linux_loong64/go_bootstrap install cmd: exit status 1

— watchflakes
@gopherbot gopherbot added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Aug 29, 2023
@gopherbot
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Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "cmd/link" && test == ""
2023-08-29 18:31 linux-loong64-3a5000 go@22f9e0ef cmd/link [build] (log) 
panic: runtime error: index out of range [2147483635] with length 6

goroutine 22 [running]:
cmd/link/internal/loader.(*Loader).resolve(0xc000142a80, 0xc000070680, {0x7ffffff3, 0x1f})
	cmd/link/internal/loader/loader.go:658 +0x2ac
cmd/link/internal/loader.Reloc.Sym({0x7fffaa5498c1, 0xc000070680, 0xc000142a80})
	cmd/link/internal/loader/loader.go:61 +0x94
cmd/link/internal/ld.(*relocSymState).relocsym(0xc001200ef0, 0xb3aa, {0x7fffa94071a0, 0xf8, 0x204e60})
	cmd/link/internal/ld/data.go:202 +0x148
cmd/link/internal/ld.writeBlock(0xc000174200, 0xc0000b6070, 0xc000142a80, {0xc001208000, 0x57c2, 0x57c2}, 0x2b0000, 0x114140, {0x52bae0, 0x200, ...})
	cmd/link/internal/ld/data.go:1084 +0x410
cmd/link/internal/ld.writeBlocks.func1(0xc0000b6070, 0xc000142a80, {0xc001208000, 0x57c2, 0x57c2}, 0x2b0000, 0x114140, {0x52bae0, 0x200, 0x200})
	cmd/link/internal/ld/data.go:1040 +0x90
created by cmd/link/internal/ld.writeBlocks in goroutine 62
	cmd/link/internal/ld/data.go:1039 +0x4a8
go tool dist: FAILED: /tmp/workdir-host-linux-loong64-3a5000/go/pkg/tool/linux_loong64/go_bootstrap install cmd: exit status 1

— watchflakes

@gopherbot gopherbot added the compiler/runtime Issues related to the Go compiler and/or runtime. label Aug 29, 2023
@bcmills bcmills changed the title cmd/link: unrecognized failures runtime: failures with index out of range panics on loong64 Aug 29, 2023
@bcmills bcmills added the arch-loong64 Issues solely affecting the loongson architecture. label Aug 29, 2023
This was referenced Aug 29, 2023
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@gopherbot
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Found new dashboard test flakes for:

#!watchflakes
post <- goarch == "loong64" && log ~ `panic: runtime error: index out of range`
2023-07-06 13:09 linux-loong64-3a5000 go@b490bdc2 archive/tar.test [build] (log) 
panic: runtime error: index out of range [2147482621] with length 2

goroutine 1 [running]:
panic({0x2e7ac0, 0xc000012360})
	runtime/panic.go:1017 +0x428 fp=0xc0001425c0 sp=0xc000142518 pc=0x4ef98
runtime.goPanicIndex(0x7ffffbfd, 0x2)
	runtime/panic.go:114 +0xb0 fp=0xc0001425f8 sp=0xc0001425c0 pc=0x4cf10
cmd/link/internal/loader.(*Loader).resolve(0xc00010ea80, 0xc0000a6280, {0x7ffffbfd, 0x24})
	cmd/link/internal/loader/loader.go:658 +0x2ac fp=0xc000142620 sp=0xc0001425f8 pc=0x14712c
cmd/link/internal/loader.Aux.Sym({0xc0000a5053, 0xc0000a6280, 0xc00010ea80})
	cmd/link/internal/loader/loader.go:73 +0x94 fp=0xc000142648 sp=0xc000142620 pc=0x144cb4
cmd/link/internal/ld.(*deadcodePass).flood(0xc000142938)
	cmd/link/internal/ld/deadcode.go:254 +0xea8 fp=0xc000142848 sp=0xc000142648 pc=0x1bdf68
cmd/link/internal/ld.deadcode(0xc000130200)
	cmd/link/internal/ld/deadcode.go:407 +0x60 fp=0xc0001429c8 sp=0xc000142848 pc=0x1bf180
cmd/link/internal/ld.Main(0x4d8c60, {0x10, 0x20, 0x1, 0x3, 0x1, 0x0, {0xc00000c3fc, 0x4, 0x4}, ...})
	cmd/link/internal/ld/main.go:286 +0x1444 fp=0xc000142c60 sp=0xc0001429c8 pc=0x20aea4
main.main()
	cmd/link/main.go:72 +0xefc fp=0xc000143f48 sp=0xc000142c60 pc=0x29a9dc
runtime.main()
	runtime/proc.go:267 +0x324 fp=0xc000143fd8 sp=0xc000143f48 pc=0x523f4
runtime.goexit()
	runtime/asm_loong64.s:640 +0x4 fp=0xc000143fd8 sp=0xc000143fd8 pc=0x88eb4
2023-08-29 15:33 linux-loong64-3a5000 go@2efebf3e internal/coverage/slicereader.test [build] (log) 
panic: runtime error: index out of range [2147483635] with length 8

goroutine 81 [running]:
panic({0x2f8240, 0xc000012198})
	runtime/panic.go:774 +0x168 fp=0xc000b08ac0 sp=0xc000b08a18 pc=0x4eea8
runtime.goPanicIndex(0x7ffffff3, 0x8)
	runtime/panic.go:114 +0xb0 fp=0xc000b08af8 sp=0xc000b08ac0 pc=0x4db10
cmd/link/internal/loader.(*Loader).resolve(0xc00076c000, 0xc00075c700, {0x7ffffff3, 0xaeb})
	cmd/link/internal/loader/loader.go:658 +0x2ac fp=0xc000b08b20 sp=0xc000b08af8 pc=0x14b6dc
cmd/link/internal/loader.Reloc.Sym({0x7fffa9f73201, 0xc00075c700, 0xc00076c000})
	cmd/link/internal/loader/loader.go:61 +0x94 fp=0xc000b08b48 sp=0xc000b08b20 pc=0x1491f4
cmd/link/internal/ld.(*relocSymState).relocsym(0xc000b08ef0, 0x13668, {0x7fffa7fa0120, 0x154, 0x1dbee0})
	cmd/link/internal/ld/data.go:202 +0x148 fp=0xc000b08dc0 sp=0xc000b08b48 pc=0x1a8f28
cmd/link/internal/ld.writeBlock(0xc000134200, 0xc000110070, 0xc00076c000, {0xc000fa8000, 0x9cd, 0xc00}, 0x11000, 0x100930, {0xc00000c42c, 0x4, ...})
	cmd/link/internal/ld/data.go:1084 +0x410 fp=0xc000b08f10 sp=0xc000b08dc0 pc=0x1afb00
cmd/link/internal/ld.writeBlocks.func1(0xc000110070, 0xc00076c000, {0xc000fa8000, 0x9cd, 0xc00}, 0x11000, 0x100930, {0xc00000c42c, 0x4, 0x4})
	cmd/link/internal/ld/data.go:1040 +0x90 fp=0xc000b08f80 sp=0xc000b08f10 pc=0x1af6b0
cmd/link/internal/ld.writeBlocks.gowrap1()
	cmd/link/internal/ld/data.go:1043 +0x9c fp=0xc000b08fd8 sp=0xc000b08f80 pc=0x1af60c
runtime.goexit()
	runtime/asm_loong64.s:640 +0x4 fp=0xc000b08fd8 sp=0xc000b08fd8 pc=0x892d4
created by cmd/link/internal/ld.writeBlocks in goroutine 64
	cmd/link/internal/ld/data.go:1039 +0x4a8
2023-08-29 16:49 linux-loong64-3a5000 go@2e644cce test.Test (log) 
--- FAIL: Test (0.02s)
    --- FAIL: Test/typeparam/issue50121b.go (0.19s)
        testdir_test.go:141: exit status 1
            panic: runtime error: index out of range [2147483635] with length 8

            goroutine 9 [running]:
            panic({0x2f8240, 0xc00079e6a8})
            	runtime/panic.go:774 +0x168 fp=0xc0010caac0 sp=0xc0010caa18 pc=0x4eea8
            runtime.goPanicIndex(0x7ffffff3, 0x8)
            	runtime/panic.go:114 +0xb0 fp=0xc0010caaf8 sp=0xc0010caac0 pc=0x4db10
            cmd/link/internal/loader.(*Loader).resolve(0xc000774000, 0xc0000f7000, {0x7ffffff3, 0x49b})
            	cmd/link/internal/loader/loader.go:658 +0x2ac fp=0xc0010cab20 sp=0xc0010caaf8 pc=0x14b6dc
            cmd/link/internal/loader.Reloc.Sym({0x7fffa8e337a1, 0xc0000f7000, 0xc000774000})
            	cmd/link/internal/loader/loader.go:61 +0x94 fp=0xc0010cab48 sp=0xc0010cab20 pc=0x1491f4
            cmd/link/internal/ld.(*relocSymState).relocsym(0xc0010caef0, 0x32b5, {0x7fffa84b71d0, 0x980, 0xb8e30})
            	cmd/link/internal/ld/data.go:202 +0x148 fp=0xc0010cadc0 sp=0xc0010cab48 pc=0x1a8f28
            cmd/link/internal/ld.writeBlock(0xc0000f0200, 0xc0000bc8c0, 0xc000774000, {0xc0007b0a00, 0x49f, 0x540}, 0x11000, 0x6c914, {0xc0000ba2ec, 0x4, ...})
            	cmd/link/internal/ld/data.go:1084 +0x410 fp=0xc0010caf10 sp=0xc0010cadc0 pc=0x1afb00
            cmd/link/internal/ld.writeBlocks.func1(0xc0000bc8c0, 0xc000774000, {0xc0007b0a00, 0x49f, 0x540}, 0x11000, 0x6c914, {0xc0000ba2ec, 0x4, 0x4})
            	cmd/link/internal/ld/data.go:1040 +0x90 fp=0xc0010caf80 sp=0xc0010caf10 pc=0x1af6b0
            cmd/link/internal/ld.writeBlocks.gowrap1()
            	cmd/link/internal/ld/data.go:1043 +0x9c fp=0xc0010cafd8 sp=0xc0010caf80 pc=0x1af60c
            runtime.goexit()
            	runtime/asm_loong64.s:640 +0x4 fp=0xc0010cafd8 sp=0xc0010cafd8 pc=0x892d4
            created by cmd/link/internal/ld.writeBlocks in goroutine 5
            	cmd/link/internal/ld/data.go:1039 +0x4a8
2023-08-29 18:28 linux-loong64-3a5000 go@208f3618 test.Test (log) 
--- FAIL: Test (0.02s)
    --- FAIL: Test/typeparam/dictionaryCapture.go (0.14s)
        testdir_test.go:141: exit status 1
            panic: runtime error: index out of range [2147483635] with length 8

            goroutine 1 [running]:
            panic({0x2f8240, 0xc000e582b8})
            	runtime/panic.go:774 +0x168 fp=0xc0000d65c0 sp=0xc0000d6518 pc=0x4eea8
            runtime.goPanicIndex(0x7ffffff3, 0x8)
            	runtime/panic.go:114 +0xb0 fp=0xc0000d65f8 sp=0xc0000d65c0 pc=0x4db10
            cmd/link/internal/loader.(*Loader).resolve(0xc000011180, 0xc0007aa800, {0x7ffffff3, 0x7a9})
            	cmd/link/internal/loader/loader.go:658 +0x2ac fp=0xc0000d6620 sp=0xc0000d65f8 pc=0x14b6dc
            cmd/link/internal/loader.Reloc.Sym({0x7fffabfa9ac1, 0xc0007aa800, 0xc000011180})
            	cmd/link/internal/loader/loader.go:61 +0x94 fp=0xc0000d6648 sp=0xc0000d6620 pc=0x1491f4
            cmd/link/internal/ld.(*deadcodePass).flood(0xc0000d6900)
            	cmd/link/internal/ld/deadcode.go:228 +0xc00 fp=0xc0000d6848 sp=0xc0000d6648 pc=0x1c1ac0
            cmd/link/internal/ld.deadcode(0xc0000c4200)
            	cmd/link/internal/ld/deadcode.go:407 +0x60 fp=0xc0000d69c0 sp=0xc0000d6848 pc=0x1c2f70
            cmd/link/internal/ld.Main(0x4e8ce0, {0x10, 0x20, 0x1, 0x3, 0x1, 0x0, {0xc00000c43c, 0x4, 0x4}, ...})
            	cmd/link/internal/ld/main.go:343 +0x1594 fp=0xc0000d6c78 sp=0xc0000d69c0 pc=0x20ebf4
            main.main()
            	cmd/link/main.go:72 +0xf80 fp=0xc0000d7f60 sp=0xc0000d6c78 pc=0x2a1c80
            runtime.main()
            	runtime/proc.go:267 +0x2f8 fp=0xc0000d7fd8 sp=0xc0000d7f60 pc=0x52b68
            runtime.goexit({})
            	runtime/asm_loong64.s:640 +0x4 fp=0xc0000d7fd8 sp=0xc0000d7fd8 pc=0x892d4

— watchflakes

@bcmills
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bcmills commented Aug 29, 2023

(attn @golang/loong64)

@abner-chenc
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Thanks!.

I have tested on other machines and the error has not been reproduced. This problem and the problem described in #62336 may be caused by the memory stability of this builder. I have reproduced these two errors before on machines with memory stability bugs.

I have replaced the memory module of this builder to see if these two errors still occur. At the same time, I also tested on other local machines to see if the two errors can be reproduced.

@mknyszek mknyszek added this to the Backlog milestone Aug 30, 2023
@bcmills bcmills changed the title runtime: failures with index out of range panics on loong64 runtime,cmd/link: failures with index out of range panics on loong64 Nov 1, 2023
@bcmills bcmills changed the title runtime,cmd/link: failures with index out of range panics on loong64 cmd/link: panic with index out of range in cmd/link/internal/loader.(*Loader).resolve Nov 1, 2023
@bcmills bcmills removed the arch-loong64 Issues solely affecting the loongson architecture. label Nov 1, 2023
@bcmills
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bcmills commented Nov 1, 2023 •
edited

This turns out not to be specific to loong64 after all (see #63876 (comment)).

(attn @golang/compiler for re-triage)

@bcmills bcmills mentioned this issue Nov 1, 2023
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@gopherbot
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Found new dashboard test flakes for:

#!watchflakes
post <- log ~ `panic: runtime error: index out of range` && log ~ `^\s*cmd/link/internal/loader\.\(\*Loader\)\.resolve`
2023-11-01 07:10 linux-ppc64-sid-buildlet go@1a58fd0f test.Test (log) 
--- FAIL: Test (0.11s)
    --- FAIL: Test/rangegen.go (154.13s)
        testdir_test.go:142: exit status 1
            # command-line-arguments
            panic: runtime error: index out of range [755141] with length 243821

            goroutine 1 [running]:
            panic({0x2b8220?, 0xc000014360?})
            	runtime/panic.go:772 +0x174 fp=0xc0000ac4e0 sp=0xc0000ac420 pc=0x4a534
            runtime.goPanicIndex(0xb85c5, 0x3b86d)
            	runtime/panic.go:114 +0x98 fp=0xc0000ac530 sp=0xc0000ac4e0 pc=0x492d8
            cmd/link/internal/loader.(*Loader).resolve(0xc000096e00?, 0xc00009c200?, {0xc0?, 0xf2000?})
            	cmd/link/internal/loader/loader.go:648 +0x27c fp=0xc0000ac570 sp=0xc0000ac530 pc=0x13392c
            cmd/link/internal/loader.Reloc.Sym({0x7fff5c58ffeb?, 0xc00009c200?, 0xc000096e00?})
            	cmd/link/internal/loader/loader.go:61 +0x64 fp=0xc0000ac5a8 sp=0xc0000ac570 pc=0x131754
            cmd/link/internal/ld.(*deadcodePass).flood(0xc0000ac8e8)
            	cmd/link/internal/ld/deadcode.go:247 +0xb0c fp=0xc0000ac810 sp=0xc0000ac5a8 pc=0x19d7cc
            cmd/link/internal/ld.deadcode(0xc00009a200)
            	cmd/link/internal/ld/deadcode.go:433 +0x80 fp=0xc0000ac990 sp=0xc0000ac810 pc=0x19ea40
            cmd/link/internal/ld.Main(_, {0x10, 0x20, 0x1, 0x1, 0x41, 0x1c00000, {0x0, 0x0, 0x0}, ...})
            	cmd/link/internal/ld/main.go:353 +0x13ec fp=0xc0000acc40 sp=0xc0000ac990 pc=0x1e34bc
            main.main()
            	cmd/link/main.go:72 +0x106c fp=0xc0000adf38 sp=0xc0000acc40 pc=0x26152c
            runtime.main()
            	runtime/proc.go:269 +0x2f0 fp=0xc0000adfc0 sp=0xc0000adf38 pc=0x4dcc0
            runtime.goexit({})
            	runtime/asm_ppc64x.s:993 +0x4 fp=0xc0000adfc0 sp=0xc0000adfc0 pc=0x81244

— watchflakes

@Guvanchhojamov
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What version of Go do you use? I saw GOVERSION="go1.18" but I cannot reproduce it with go1.18.
Maybe try clean your cache (go clean -cache, go clean -modcache) in case some cached file is corrupted?

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@mknyszek @bcmills @gopherbot @Guvanchhojamov @abner-chenc