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cmd/compile,runtime: SIGILL on linux-loong64-3a5000 #53093

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bcmills opened this issue May 26, 2022 · 5 comments
Open

cmd/compile,runtime: SIGILL on linux-loong64-3a5000 #53093

bcmills opened this issue May 26, 2022 · 5 comments
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arch-loong64 Issues solely affecting the loongson architecture. 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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Backlog

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@bcmills
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bcmills commented May 26, 2022 •
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#!watchflakes
post <- builder ~ `^linux-loong64` && `signal: illegal instruction \(core dumped\)`

signal: illegal instruction (core dumped)
FAIL	cmd/go/internal/modfetch	0.362s

greplogs -l -e '(?ms)\Alinux-loong64-.*signal: illegal instruction \(core dumped\)'
2022-05-24T17:02:34-70668a4/linux-loong64-3a5000

(attn @golang/loong64)
@bcmills bcmills added the arch-loong64 Issues solely affecting the loongson architecture. label May 26, 2022
@bcmills bcmills changed the title cmd/compile: SIGILL on linux-loong64-3a5000 cmd/compile,runtime: SIGILL on linux-loong64-3a5000 May 26, 2022
@bcmills bcmills added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label May 26, 2022
@bcmills bcmills added this to the Backlog milestone May 26, 2022
@abner-chenc
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ok  	os/exec/internal/fdtest	0.016s
signal: illegal instruction (core dumped)
FAIL	os/signal	0.129s
ok  	os/user	0.005s

Sorry, We're having the same issue and we're analysing what's causing it.

@xen0n
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xen0n commented May 27, 2022

I can't reproduce this.

##### Test execution environment.             
# GOARCH: loong64                             
# CPU:                                        
# GOOS: linux                                 
# OS Version: Linux 5.17.0-00067-g8d427f9dd274 #10 SMP PREEMPT Sun May 22 09:34:01 AM CST 2022 loongarch64

Try bumping your kernel version and/or bootstrap toolchain version?

@xen0n
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xen0n commented May 27, 2022

(My kernel is my handmade https://github.com/xen0n/linux/tree/loongarch-playground-v13.101, FYI. (Basically the last known good version to boot on old firmware, but with UAPI manually upgraded to latest.)

@bcmills bcmills mentioned this issue May 27, 2022
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@gopherbot gopherbot added the compiler/runtime Issues related to the Go compiler and/or runtime. label Jul 7, 2022
@mknyszek mknyszek moved this to Triage Backlog in Go Compiler / Runtime Jul 15, 2022
@xen0n
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xen0n commented Nov 3, 2022

@abner-chenc Hi, do you still see this issue appearing in your daily development? I assume you should be using a more recent system for a while.

@gopherbot
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Change https://go.dev/cl/465156 mentions this issue: dashboard: unmark known-issues with low failure rates

gopherbot pushed a commit to golang/build that referenced this issue Feb 4, 2023
@gopherbot
dashboard: unmark known-issues with low failure rates
20ebdbd 
I had initially added known issues fairly aggressively in order to use
them to reduce noise in 'greplogs -triage'. Now that we are using
'watchflakes' for triage, that noise reduction is no longer important
(the failures are already clustered to their respective known issues),
and having greyed-out cells on the dashboard makes new regressions too
easy to miss.

Concretely:

- golang/go#42212 is mostly specific to x/net at this point (as
  golang/go#57841)

- There have been no failures matching golang/go#51001 since October.

- golang/go#52724 has been so rare lately that we hadn't yet added a
  'watchflakes' pattern for it.

- There have been no failures matching golang/go#51443 since May.

- There have been no failures matching golang/go#53116 or
  golang/go#53093 since I enabled 'watchflakes' for the builder in
  December.

- The linux-amd64-perf builder seems to be passing consistently for
  x/benchmarks and x/tools, so there is no need to refer to
  golang/go#53538 to explain failures on it.

Change-Id: Ia16db2a23e5fa037a299f1f56fb26f1cf84521e1
Reviewed-on: https://go-review.googlesource.com/c/build/+/465156
Reviewed-by: Dmitri Shuralyov <[email protected]>
Reviewed-by: Dmitri Shuralyov <[email protected]>
Run-TryBot: Bryan Mills <[email protected]>
Auto-Submit: Bryan Mills <[email protected]>
TryBot-Result: Gopher Robot <[email protected]>
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Labels
arch-loong64 Issues solely affecting the loongson architecture. 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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Status: Triage Backlog
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@xen0n @bcmills @gopherbot @abner-chenc