runtime/pprof: TestStackBarrierProfiling fails occasionally on linux/mips64le #15313
Labels
FrozenDueToAge
NeedsInvestigation
Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Milestone
Comments
|
This is most likely the same issue as the TestStackBarrierProfiling failures in #15138. |
|
CL https://golang.org/cl/23291 mentions this issue. |
|
Update: |
|
Interesting. This new failure does look different, though it's also in the stack jumping code, just like the problem that caused the unexpected stack barrier turned out to be. Perhaps the missing frame.sp isn't the only issue that sequence has on LR machines. |
|
Actually, I take that back. The failing line in gentraceback is right after the stack jump code, but I don't think the stack jump triggered in this case, since the error is saying that f is |
gopherbot
pushed a commit
that referenced
this issue
May 24, 2016
When gentraceback starts on a system stack in sigprof, it is configured to jump to the user stack when it reaches the end of the system stack. Currently this updates the current frame's FP, but not its SP. This is okay on non-LR machines (x86) because frame.sp is only used to find defers, which the bottom-most frame of the user stack will never have. However, on LR machines, we use frame.sp to find the saved LR. We then use to resolve the function of the next frame, which is used to resolved the size of the next frame. Since we're not updating frame.sp on a stack jump, we read the saved LR from the system stack instead of the user stack and wind up resolving the wrong function and hence the wrong frame size for the next frame. This has had remarkably few ill effects (though the resulting profiles must be wrong). We noticed it because of a bad interaction with stack barriers. Specifically, once we get the next frame size wrong, we also get the location of its LR wrong. If we happen to get a stack slot that contains a stale stack barrier LR (for a stack barrier we already hit) and hasn't been overwritten with something else as we re-grew the stack, gentraceback will fail with a "found next stack barrier at ..." error, pointing at the slot that it thinks is an LR, but isn't. Fixes #15138. Updates #15313 (might fix it). Change-Id: I13cfa322b44c0c2f23ac2b3d03e12631e4a6406b Reviewed-on: https://go-review.googlesource.com/23291 Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Rick Hudson <rlh@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
|
It's got to be the systemstack switch. That's the running goroutine on the m that is doing the profiling. It's the only stack that would be being traced. And we just found a bug in the code. Obviously f=asminit means that we didn't just go over the switch. But maybe we went over the switch one frame earlier and got out of sync, causing the next frame to pick up a reference to asminit from somewhere. It's equally clear nothing relevant is actually calling asminit, which returns immediately and never makes any calls. asminit's PC shouldn't even appear on the stack (and it only runs on thread startup anyway). |
|
Postponing to 1.8. |
quentinmit
added
the
NeedsInvestigation
|
@cherrymui can you still reproduce this after your recent change to save LR before allocating the stack frame? |
|
FWIW, I'm about to disable stack barriers by default, making this test even more of a moot point. |
|
I have been running the test in a loop for 10+ hours, without seeing any failure (with yesterday's tip). So it's probably ok now. |
|
It's still failing for me with Go 1.8beta2 on linux/amd64 https://gist.github.com/akutz/ef7f430239a4e2a540c006b26ba33015 |
|
@akutz, this bug is about linux/mips64le. Please open a new bug with details about your system (including the value of CONFIG_HIGH_RES_TIMERS from |
|
So...open the issue or not? It was blocking me in that I couldn't compile Go 1.8. To do so I skipped the test. If it's going away then I won't worry about it. Thanks! |
|
Since it was just blocking all.bash from passing, skipping it is a fine workaround and I wouldn't worry about filing a bug. |
Sign up for free
to subscribe to this conversation on GitHub.
Already have an account?
Sign in.
The failure is rare, e.g. with commit 44f80f6, it failed 29 times out of 1500 runs. When it fails, it looks like
=== RUN TestStackBarrierProfiling
--- FAIL: TestStackBarrierProfiling (0.65s)
pprof_test.go:393: subprocess failed with signal: segmentation fault:
found next stack barrier at 0xc820137670; expected [*0xc820135c00=0x348d0 *0xc820135c38=0x238f8 *0xc820135cb8=0x24a1c *0xc820135d98=0x6a318 *0xc820135dd8=0xbe274 *0xc820135e28=0xbe2d4 *0xc820135e60=0xbe2d4 *0xc820135e98=0xbe2d4 *0xc820135ed0=0xbe2d4 *0xc820135f08=0xbe2d4 *0xc820135f40=0xbe2d4 *0xc820135f78=0xbe2d4 *0xc820135fb0=0xbe2d4 *0xc820135fe8=0xbe2d4 *0xc820136020=0xbe2d4 *0xc820136058=0xbe2d4 *0xc820136090=0xbe2d4 *0xc8201360c8=0xbe2d4 *0xc820136100=0xbe2d4 *0xc820136138=0xbe2d4 *0xc820136170=0xbe2d4 *0xc8201361a8=0xbe2d4 *0xc8201361e0=0xbe2d4 *0xc820136218=0xbe2d4 *0xc820136250=0xbe2d4 *0xc820136288=0xbe2d4 *0xc8201362c0=0xbe2d4 *0xc8201362f8=0xbe2d4 *0xc820136330=0xbe2d4 *0xc820136368=0xbe2d4 *0xc8201363a0=0xbe2d4 *0xc8201363d8=0xbe2d4 *0xc820136410=0xbe2d4 *0xc820136448=0xbe2d4 *0xc820136480=0xbe2d4 *0xc8201364b8=0xbe2d4 *0xc8201364f0=0xbe2d4 *0xc820136528=0xbe2d4 *0xc820136560=0xbe2d4 *0xc820136598=0xbe2d4 *0xc8201365d0=0xbe2d4 *0xc820136608=0xbe2d4 *0xc820136640=0xbe2d4 *0xc820136678=0xbe2d4 *0xc8201366b0=0xbe2d4 *0xc8201366e8=0xbe2d4 *0xc820136720=0xbe2d4 *0xc820136758=0xbe2d4 *0xc820136790=0xbe2d4 *0xc8201367c8=0xbe2d4 *0xc820136800=0xbe2d4 *0xc820136838=0xbe2d4 *0xc820136870=0xbe2d4 *0xc8201368a8=0xbe2d4 *0xc8201368e0=0xbe2d4 *0xc820136918=0xbe2d4 *0xc820136950=0xbe2d4 *0xc820136988=0xbe2d4 *0xc8201369c0=0xbe2d4 *0xc8201369f8=0xbe2d4 *0xc820136a30=0xbe2d4 *0xc820136a68=0xbe2d4 *0xc820136aa0=0xbe2d4 *0xc820136ad8=0xbe2d4 *0xc820136b10=0xbe2d4 *0xc820136b48=0xbe2d4 *0xc820136b80=0xbe2d4 *0xc820136bb8=0xbe2d4 *0xc820136bf0=0xbe2d4 *0xc820136c28=0xbe2d4 *0xc820136c60=0xbe2d4 *0xc820136c98=0xbe2d4 *0xc820136cd0=0xbe2d4 *0xc820136d08=0xbe2d4 *0xc820136d40=0xbe2d4 *0xc820136d78=0xbe2d4 *0xc820136db0=0xbe2d4 *0xc820136de8=0xbe2d4 *0xc820136e20=0xbe2d4 *0xc820136e58=0xbe2d4 *0xc820136e90=0xbe2d4 *0xc820136ec8=0xbe2d4 *0xc820136f00=0xbe2d4 *0xc820136f38=0xbe2d4 *0xc820136f70=0xbe2d4 *0xc820136fa8=0xbe2d4 *0xc820136fe0=0xbe2d4 *0xc820137018=0xbe2d4 *0xc820137050=0xbe2d4 *0xc820137088=0xbe2d4 *0xc8201370c0=0xbe2d4 *0xc8201370f8=0xbe2d4 *0xc820137130=0xbe2d4 *0xc820137168=0xbe2d4 *0xc8201371a0=0xbe2d4 *0xc8201371d8=0xbe2d4 *0xc820137210=0xbe2d4 *0xc820137248=0xbe2d4 *0xc820137280=0xbe2d4 *0xc8201372b8=0xbe2d4 *0xc8201372f0=0xbe2d4 *0xc820137328=0xbe2d4 *0xc820137360=0xbe2d4 *0xc820137398=0xbe2d4 *0xc8201373d0=0xbe2d4 *0xc820137408=0xbe2d4 *0xc820137440=0xbe2d4 *0xc820137478=0xbe2d4 *0xc8201374b0=0xbe2d4 *0xc8201374e8=0xbe2d4 *0xc820137520=0xbe2d4 *0xc820137558=0xbe2d4 *0xc820137590=0xbe2d4 *0xc8201375c8=0xbe2d4 *0xc820137600=0xbe2d4 @@@ ==> *0xc820137638=0xbe2d4 *0xc820137670=0xbe2d4 *0xc8201376a8=0xbe2d4 *0xc8201376e0=0xbe2d4 *0xc820137718=0xbe2d4 *0xc820137750=0xbe2d4 *0xc820137788=0xbe2d4 *0xc8201377c0=0xbe2d4 *0xc8201377f8=0xbe2d4 *0xc820137830=0xbe2d4 *0xc820137868=0xbe2d4 *0xc8201378a0=0xbe2d4 *0xc8201378d8=0xbe2d4 *0xc820137910=0xbe2d4 *0xc820137948=0xbe2d4 *0xc820137980=0xbe2d4 *0xc8201379b8=0xbe2d4 *0xc8201379f0=0xbe2d4 *0xc820137a28=0xbe2d4 *0xc820137a60=0xbe2d4 *0xc820137a98=0xbe2d4 *0xc820137ad0=0xbe2d4 *0xc820137b08=0xbe2d4 *0xc820137b40=0xbe2d4 *0xc820137b78=0xbe2d4 *0xc820137bb0=0xbe2d4 *0xc820137be8=0xbe2d4 *0xc820137c20=0xbe2d4 *0xc820137c58=0xbe2d4 *0xc820137c90=0xbe2d4 *0xc820137cc8=0xbe2d4 *0xc820137d00=0xbe2d4 *0xc820137d38=0xbe2d4 *0xc820137d70=0xbe2d4 *0xc820137da8=0xbe2d4 *0xc820137de0=0xbe2d4 *0xc820137e18=0xbe2d4 *0xc820137e50=0xbe2d4 *0xc820137e88=0xbe2d4 *0xc820137ec0=0xbe2d4 *0xc820137ef8=0xbe2d4 *0xc820137f30=0xbe2d4 *0xc820137f68=0xbe2d4 *0xc820137fa0=0xbe2d4 *0xc820137fd8=0xbe2d4 *0xc820138010=0xbe2d4 *0xc820138048=0xbe2d4 *0xc820138080=0xbe2d4 *0xc8201380b8=0xbe2d4 *0xc8201380f0=0xbe2d4 *0xc820138128=0xbe2d4 *0xc820138160=0xbe2d4 *0xc820138198=0xbe2d4 *0xc8201381d0=0xbe2d4 *0xc820138208=0xbe2d4 *0xc820138240=0xbe2d4 *0xc820138278=0xbe2d4 *0xc8201382b0=0xbe2d4 *0xc8201382e8=0xbe2d4 *0xc820138320=0xbe2d4 *0xc820138358=0xbe2d4 *0xc820138390=0xbe2d4 *0xc8201383c8=0xbe2d4 *0xc820138400=0xbe2d4 *0xc820138438=0xbe2d4 *0xc820138470=0xbe2d4 *0xc8201384a8=0xbe2d4 *0xc8201384e0=0xbe2d4 *0xc820138518=0xbe2d4 *0xc820138550=0xbe2d4 *0xc820138588=0xbe2d4 *0xc8201385c0=0xbe2d4 *0xc8201385f8=0xbe2d4 *0xc820138630=0xbe2d4 *0xc820138668=0xbe2d4 *0xc8201386a0=0xbe2d4 *0xc8201386d8=0xbe2d4 *0xc820138710=0xbe2d4 *0xc820138748=0xbe2d4 *0xc820138780=0xbe2d4 *0xc8201387b8=0xbe2d4 *0xc8201387f0=0xbe2d4 *0xc820138828=0xbe2d4 *0xc820138860=0xbe2d4 *0xc820138898=0xbe2d4 *0xc8201388d0=0xbe2d4 *0xc820138908=0xbe2d4 *0xc820138940=0xbe2d4 *0xc820138978=0xbe2d4 *0xc8201389b0=0xbe2d4 *0xc8201389e8=0xbe2d4 *0xc820138a20=0xbe2d4 *0xc820138a58=0xbe2d4 *0xc820138a90=0xbe2d4 *0xc820138ac8=0xbe2d4 *0xc820138b00=0xbe2d4 *0xc820138b38=0xbe2d4 *0xc820138b70=0xbe2d4 *0xc820138ba8=0xbe2d4 *0xc820138be0=0xbe2d4 *0xc820138c18=0xbe2d4 *0xc820138c50=0xbe2d4 *0xc820138c88=0xbe2d4 *0xc820138cc0=0xbe2d4 *0xc820138cf8=0xbe2d4 *0xc820138d30=0xbe2d4 *0xc820138d68=0xbe2d4 *0xc820138da0=0xbe2d4 *0xc820138dd8=0xbe2d4 *0xc820138e10=0xbe2d4 *0xc820138e48=0xbe2d4 *0xc820138e80=0xbe2d4 *0xc820138eb8=0xbe2d4 *0xc820138ef0=0xbe2d4 *0xc820138f28=0xbe2d4 *0xc820138f60=0xbe2d4 *0xc820138f98=0xbe2d4 *0xc820138fd0=0xbe2d4 *0xc820139008=0xbe2d4 *0xc820139040=0xbe2d4 *0xc820139078=0xbe2d4 *0xc8201390b0=0xbe2d4 *0xc8201390e8=0xbe2d4 *0xc820139120=0xbe2d4 *0xc820139158=0xbe2d4 *0xc820139190=0xbe2d4 *0xc8201391c8=0xbe2d4 *0xc820139200=0xbe2d4 *0xc820139238=0xbe2d4 *0xc820139270=0xbe2d4 *0xc8201392a8=0xbe2d4 *0xc8201392e0=0xbe2d4 *0xc820139318=0xbe2d4 *0xc820139350=0xbe2d4 *0xc820139388=0xbe2d4 *0xc8201393c0=0xbe2d4 *0xc8201393f8=0xbe2d4 *0xc820139430=0xbe2d4 *0xc820139468=0xbe2d4 *0xc8201394a0=0xbe2d4 *0xc8201394d8=0xbe2d4 *0xc820139510=0xbe2d4 *0xc820139548=0xbe2d4 *0xc820139580=0xbe2d4 *0xc8201395b8=0xbe2d4 *0xc8201395f0=0xbe2d4 *0xc820139628=0xbe2d4 *0xc820139660=0xbe2d4 *0xc820139698=0xbe2d4 *0xc8201396d0=0xbe2d4 *0xc820139708=0xbe2d4 *0xc820139740=0xbe2d4 *0xc820139778=0xbe2d4 *0xc8201397b0=0xbe2d4 *0xc8201397e8=0xbe2d4 *0xc820139820=0xbe2d4 *0xc820139858=0xbe2d4 *0xc820139890=0xbe2d4 *0xc8201398c8=0xbe2d4 *0xc820139900=0xbe2d4 *0xc820139938=0xbe2d4 *0xc820139970=0xbe2d4 *0xc8201399a8=0xbe2d4 *0xc8201399e0=0xbe2d4 *0xc820139a18=0xbe2d4 *0xc820139a50=0xbe2d4 *0xc820139a88=0xbe2d4 *0xc820139ac0=0xbe2d4 *0xc820139af8=0xbe2d4 *0xc820139b30=0xbe2d4 *0xc820139b68=0xbe2d4 *0xc820139ba0=0xbe2d4 *0xc820139bd8=0xbe2d4 *0xc820139c10=0xbe2d4 *0xc820139c48=0xbe2d4 *0xc820139c80=0xbe2d4 *0xc820139cb8=0xbe2d4 *0xc820139cf0=0xbe2d4 *0xc820139d28=0xbe2d4 *0xc820139d60=0xbe2d4 *0xc820139d98=0xbe2d4 *0xc820139dd0=0xbe2d4 *0xc820139e08=0xbe2d4 *0xc820139e40=0xbe2d4 *0xc820139e78=0xbe2d4 *0xc820139eb0=0xbe2d4 *0xc820139ee8=0xbe2d4 *0xc820139f20=0xbe2d4 *0xc820139f58=0xbe2d4 *0xc820139f90=0xbe2d4 *0xc820139fc8=0xbe2d4 *0xc82013a000=0xbe2d4 *0xc82013a038=0xbe2d4 *0xc82013a070=0xbe2d4 *0xc82013a0a8=0xbe2d4 *0xc82013a0e0=0xbe2d4 *0xc82013a118=0xbe2d4 *0xc82013a150=0xbe2d4 *0xc82013a188=0xbe2d4 *0xc82013a1c0=0xbe2d4 *0xc82013a1f8=0xbe2d4 *0xc82013a230=0xbe2d4 *0xc82013a268=0xbe2d4 *0xc82013a2a0=0xbe2d4 *0xc82013a2d8=0xbe2d4 *0xc82013a310=0xbe2d4 *0xc82013a348=0xbe2d4 *0xc82013a380=0xbe2d4 *0xc82013a3b8=0xbe2d4 *0xc82013a3f0=0xbe2d4 *0xc82013a428=0xbe2d4 *0xc82013a460=0xbe2d4 *0xc82013a498=0xbe2d4 *0xc82013a4d0=0xbe2d4 *0xc82013a508=0xbe2d4 *0xc82013a540=0xbe2d4 *0xc82013a578=0xbe2d4 *0xc82013a5b0=0xbe2d4 *0xc82013a5e8=0xbe2d4 *0xc82013a620=0xbe2d4 *0xc82013a658=0xbe2d4 *0xc82013a690=0xbe2d4 *0xc82013a6c8=0xbe2d4 *0xc82013a700=0xbe2d4 *0xc82013a738=0xbe2d4 *0xc82013a770=0xbe2d4 *0xc82013a7a8=0xbe2d4 *0xc82013a7e0=0xbe2d4 *0xc82013a818=0xbe2d4 *0xc82013a850=0xbe2d4 *0xc82013a888=0xbe2d4 *0xc82013a8c0=0xbe2d4 *0xc82013a8f8=0xbe2d4 *0xc82013a930=0xbe2d4 *0xc82013a968=0xbe2d4 *0xc82013a9a0=0xbe2d4 *0xc82013a9d8=0xbe2d4 *0xc82013aa10=0xbe2d4 *0xc82013aa48=0xbe2d4 *0xc82013aa80=0xbe2d4 *0xc82013aab8=0xbe2d4 *0xc82013aaf0=0xbe2d4 *0xc82013ab28=0xbe2d4 *0xc82013ab60=0xbe2d4 *0xc82013ab98=0xbe2d4 *0xc82013abd0=0xbe2d4 *0xc82013ac08=0xbe2d4 *0xc82013ac40=0xbe2d4 *0xc82013ac78=0xbe2d4 *0xc82013acb0=0xbe2d4 *0xc82013ace8=0xbe2d4 *0xc82013ad20=0xbe2d4 *0xc82013ad58=0xbe2d4 *0xc82013ad90=0xbe2d4 *0xc82013adc8=0xbe2d4 *0xc82013ae00=0xbe2d4 *0xc82013ae38=0xbe2d4 *0xc82013ae70=0xbe2d4 *0xc82013aea8=0xbe2d4 *0xc82013aee0=0xbe2d4 *0xc82013af18=0xbe2d4 *0xc82013af50=0xbe2d4 *0xc82013af88=0xbe2d4 *0xc82013afc0=0xbe2d4 *0xc82013aff8=0xbe2d4 *0xc82013b030=0xbe2d4 *0xc82013b068=0xbe2d4 *0xc82013b0a0=0xbe2d4 *0xc82013b0d8=0xbe2d4 *0xc82013b110=0xbe2d4 *0xc82013b148=0xbe2d4 *0xc82013b180=0xbe2d4 *0xc82013b1b8=0xbe2d4 *0xc82013b1f0=0xbe2d4 *0xc82013b228=0xbe2d4 *0xc82013b260=0xbe2d4 *0xc82013b298=0xbe2d4 *0xc82013b2d0=0xbe2d4 *0xc82013b308=0xbe2d4 *0xc82013b340=0xbe2d4 *0xc82013b378=0xbe2d4 *0xc82013b3b0=0xbe2d4 *0xc82013b3e8=0xbe2d4 *0xc82013b420=0xbe2d4 *0xc82013b458=0xbe2d4 *0xc82013b490=0xbe2d4 *0xc82013b4c8=0xbe2d4 *0xc82013b500=0xbe2d4 *0xc82013b538=0xbe2d4 *0xc82013b570=0xbe2d4 *0xc82013b5a8=0xbe2d4 *0xc82013b5e0=0xbe2d4 *0xc82013b618=0xbe2d4 *0xc82013b650=0xbe2d4 *0xc82013b688=0xbe2d4 *0xc82013b6c0=0xbe2d4 *0xc82013b6f8=0xbe2d4 *0xc82013b730=0xbe2d4 *0xc82013b768=0xbe2d4 *0xc82013b7a0=0xbe2d4 *0xc82013b7d8=0xbe2d4 *0xc82013b810=0xbe2d4 *0xc82013b848=0xbe2d4 *0xc82013b880=0xbe2d4 *0xc82013b8b8=0xbe2d4 *0xc82013b8f0=0xbe2d4 *0xc82013b928=0xbe2d4 *0xc82013b960=0xbe2d4 *0xc82013b998=0xbe2d4 *0xc82013b9d0=0xbe2d4 *0xc82013ba08=0xbe2d4 *0xc82013ba40=0xbe2d4 *0xc82013ba78=0xbe2d4 *0xc82013bab0=0xbe2d4 *0xc82013bae8=0xbe2d4 *0xc82013bb20=0xbe2d4 *0xc82013bb58=0xbe2d4 *0xc82013bb90=0xbe2d4 *0xc82013bbc8=0xbe2d4 *0xc82013bc00=0xbe2d4 *0xc82013bc38=0xbe2d4 *0xc82013bc70=0xbe2d4 *0xc82013bca8=0xbe2d4 *0xc82013bce0=0xbe2d4 *0xc82013bd18=0xbe2d4 *0xc82013bd50=0xbe2d4 *0xc82013bd88=0xbe2d4 *0xc82013bdc0=0xbe2d4 *0xc82013bdf8=0xbe2d4 *0xc82013be30=0xbe2d4 *0xc82013be68=0xbe2d4 *0xc82013bea0=0xbe2d4 *0xc82013bed8=0xbe2d4 *0xc82013bf10=0xbe2d4 *0xc82013bf48=0xbe2d4 *0xc82013bf80=0xbe2d4 *0xc82013bfb8=0xbe2d4 *0xc82013bff0=0xbe2d4 *0xc82013c028=0xbe2d4 *0xc82013c060=0xbe2d4 *0xc82013c098=0xbe2d4 *0xc82013c0d0=0xbe2d4 *0xc82013c108=0xbe2d4 *0xc82013c140=0xbe2d4 *0xc82013c178=0xbe2d4 *0xc82013c1b0=0xbe2d4 *0xc82013c1e8=0xbe2d4 *0xc82013c220=0xbe2d4 *0xc82013c258=0xbe2d4 *0xc82013c290=0xbe2d4 *0xc82013c2c8=0xbe2d4 *0xc82013c300=0xbe2d4 *0xc82013c338=0xbe2d4 *0xc82013c370=0xbe2d4 *0xc82013c3a8=0xbe2d4 *0xc82013c3e0=0xbe2d4 *0xc82013c418=0xbe2d4 *0xc82013c450=0xbe2d4 *0xc82013c488=0xbe2d4 *0xc82013c4c0=0xbe2d4 *0xc82013c4f8=0xbe2d4 *0xc82013c530=0xbe2d4 *0xc82013c568=0xbe2d4 *0xc82013c5a0=0xbe2d4 *0xc82013c5d8=0xbe2d4 *0xc82013c610=0xbe2d4 *0xc82013c648=0xbe2d4 *0xc82013c680=0xbe2d4 *0xc82013c6b8=0xbe2d4 *0xc82013c6f0=0xbe2d4 *0xc82013c728=0xbe2d4 *0xc82013c760=0xbe2d4 *0xc82013c798=0xbe2d4 *0xc82013c7d0=0xbe2d4 *0xc82013c808=0xbe2d4 *0xc82013c840=0xbe2d4 *0xc82013c878=0xbe2d4 *0xc82013c8b0=0xbe2d4 *0xc82013c8e8=0xbe2d4 *0xc82013c920=0xbe2d4 *0xc82013c958=0xbe2d4 *0xc82013c990=0xbe2d4 *0xc82013c9c8=0xbe2d4 *0xc82013ca00=0xbe2d4 *0xc82013ca38=0xbe2d4 *0xc82013ca70=0xbe2d4 *0xc82013caa8=0xbe2d4 *0xc82013cae0=0xbe2d4 *0xc82013cb18=0xbe2d4 *0xc82013cb50=0xbe2d4 *0xc82013cb88=0xbe2d4 *0xc82013cbc0=0xbe2d4 *0xc82013cbf8=0xbe2d4 *0xc82013cc30=0xbe2d4 *0xc82013cc68=0xbe2d4 *0xc82013cca0=0xbe2d4 *0xc82013ccd8=0xbe2d4 *0xc82013cd10=0xbe2d4 *0xc82013cd48=0xbe2d4 *0xc82013cd80=0xbe2d4 *0xc82013cdb8=0xbe2d4 *0xc82013cdf0=0xbe2d4 *0xc82013ce28=0xbe2d4 *0xc82013ce60=0xbe2d4 *0xc82013ce98=0xbe2d4 *0xc82013ced0=0xbe2d4 *0xc82013cf08=0xbe2d4 *0xc82013cf40=0xbe2d4 *0xc82013cf78=0xbe2d4 *0xc82013cfb0=0xbe2d4 *0xc82013cfe8=0xbe2d4 *0xc82013d020=0xbe2d4 *0xc82013d058=0xbe2d4 *0xc82013d090=0xbe2d4 *0xc82013d0c8=0xbe2d4 *0xc82013d100=0xbe2d4 *0xc82013d138=0xbe2d4 *0xc82013d170=0xbe2d4 *0xc82013d1a8=0xbe2d4 *0xc82013d1e0=0xbe2d4 *0xc82013d218=0xbe2d4 *0xc82013d250=0xbe2d4 *0xc82013d288=0xbe2d4 *0xc82013d2c0=0xbe2d4 *0xc82013d2f8=0xbe2d4 *0xc82013d330=0xbe2d4 *0xc82013d368=0xbe2d4 *0xc82013d3a0=0xbe2d4 *0xc82013d3d8=0xbe2d4 *0xc82013d410=0xbe2d4 *0xc82013d448=0xbe2d4 *0xc82013d480=0xbe2d4 *0xc82013d4b8=0xbe2d4 *0xc82013d4f0=0xbe2d4 *0xc82013d528=0xbe2d4 *0xc82013d560=0xbe2d4 *0xc82013d598=0xbe2d4 *0xc82013d5d0=0xbe2d4 *0xc82013d608=0xbe2d4 *0xc82013d640=0xbe2d4 *0xc82013d678=0xbe2d4 *0xc82013d6b0=0xbe2d4 *0xc82013d6e8=0xbe2d4 *0xc82013d720=0xbe2d4 *0xc82013d758=0xbe2d4 *0xc82013d790=0xbe2d4 *0xc82013d7c8=0xbe2d4 *0xc82013d800=0xbe2d4 *0xc82013d838=0xbe2d4 *0xc82013d870=0xbe2d4 *0xc82013d8a8=0xbe2d4 *0xc82013d8e0=0xbe2d4 *0xc82013d918=0xbe2d4 *0xc82013d950=0xbe2d4 *0xc82013d988=0xbe2d4 *0xc82013d9c0=0xbe2d4 *0xc82013d9f8=0xbe2d4 *0xc82013da30=0xbe2d4 *0xc82013da68=0xbe2d4 *0xc82013daa0=0xbe2d4 *0xc82013dad8=0xbe2d4 *0xc82013db10=0xbe2d4 *0xc82013db48=0xbe2d4 *0xc82013db80=0xbe2d4 *0xc82013dbb8=0xbe2d4 *0xc82013dbf0=0xbe2d4 *0xc82013dc28=0xbe2d4 *0xc82013dc60=0xc0aac *0xc82013dc98=0xbc378 *0xc82013dcc8=0xbe1f0 *0xc82013de30=0xac23c *0xc82013df90=0x8ff2c]
fatal error: missed stack barrier
FAIL
See also e.g. http://build.golang.org/log/a97d7fbc0505b36b32e5c4865503993ce497a914
The text was updated successfully, but these errors were encountered: