x/mobile libc : SIGABRT crash on the Genymotion Android emulator #29249

llgoer · 2018-12-14T03:00:38Z

What version of Go are you using (`go version`)?

$ go version
go version go1.11.2 darwin/amd64

Does this issue reproduce with the latest release?

Yes

What operating system and processor architecture are you using (`go env`)?

go env Output

$ go env
GOARCH="amd64"
GOBIN=""
GOCACHE="/Users/llgoer/Library/Caches/go-build"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOOS="darwin"
GOPATH="/Users/llgoer/Projects/Go"
GOPROXY=""
GORACE=""
GOROOT="/Users/llgoer/Documents/go"
GOTMPDIR=""
GOTOOLDIR="/Users/llgoer/Documents/go/pkg/tool/darwin_amd64"
GCCGO="gccgo"
CC="clang"
CXX="clang++"
CGO_ENABLED="1"
GOMOD=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/z1/j2_yz_zx4p58d3s8r7p75brh0000gn/T/go-build299331708=/tmp/go-build -gno-record-gcc-switches -fno-common"

What did you do?

https://github.com/golang/go/wiki/Mobile#building-and-deploying-to-android-1

$ gomobile bind -o app/hello.aar -target=android golang.org/x/mobile/example/bind/hello

What did you expect to see?

say hello.it run successfull on aarch64,but failed on x86.

What did you see instead?

12-13 21:26:00.868  4298  4402 F libc    : Fatal signal 6 (SIGABRT), code -6 in tid 4402 (mqt_native_modu)
12-13 21:26:00.972   262   262 F DEBUG   : *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
12-13 21:26:00.972   262   262 F DEBUG   : Build fingerprint: 'Android/vbox86p/vbox86p:6.0/MRA58K/91:userdebug/test-keys'
12-13 21:26:00.972   262   262 F DEBUG   : Revision: '0'
12-13 21:26:00.972   262   262 F DEBUG   : ABI: 'x86'
12-13 21:26:00.972   262   262 F DEBUG   : pid: 4298, tid: 4402, name: mqt_native_modu  >>> com.myapp <<<
12-13 21:26:00.972   262   262 F DEBUG   : signal 6 (SIGABRT), code -6 (SI_TKILL), fault addr --------
12-13 21:26:00.980   262   262 F DEBUG   :     eax 00000000  ebx 000010ca  ecx 00001132  edx 00000006
12-13 21:26:00.980   262   262 F DEBUG   :     esi d844a980  edi 00000000
12-13 21:26:00.980   262   262 F DEBUG   :     xcs 00000023  xds 0000002b  xes 0000002b  xfs 000000cf  xss 0000002b
12-13 21:26:00.980   262   262 F DEBUG   :     eip f73c06c6  ebp 00001132  esp d844a520  flags 00200206
12-13 21:26:00.981   262   262 F DEBUG   : 
12-13 21:26:00.981   262   262 F DEBUG   : backtrace:
12-13 21:26:00.982   262   262 F DEBUG   :     #00 pc 000836c6  /system/lib/libc.so (tgkill+22)
12-13 21:26:00.982   262   262 F DEBUG   :     #01 pc 00081728  /system/lib/libc.so (pthread_kill+70)
12-13 21:26:00.982   262   262 F DEBUG   :     #02 pc 00027255  /system/lib/libc.so (raise+36)
12-13 21:26:00.983   262   262 F DEBUG   :     #03 pc 00020a34  /system/lib/libc.so (abort+80)
12-13 21:26:00.983   262   262 F DEBUG   :     #04 pc 001e3a69  /data/app/com.myapp-2/lib/x86/libgojni.so
12-13 21:26:00.984   262   262 F DEBUG   :     #05 pc 001e3f52  /data/app/com.myapp-2/lib/x86/libgojni.so (x_cgo_init+98)
12-13 21:26:00.984   262   262 F DEBUG   :     #06 pc 000a2941  /data/app/com.myapp-2/lib/x86/libgojni.so
12-13 21:26:00.985   262   262 F DEBUG   :     #07 pc 000fd84f  [stack:4402]
12-13 21:26:01.176   262   262 F DEBUG   : 
12-13 21:26:01.176   262   262 F DEBUG   : Tombstone written to: /data/tombstones/tombstone_04
12-13 21:26:01.176  1661  4407 W ActivityManager:   Force finishing activity com.myapp/.MainActivity
12-13 21:26:01.176   262   262 E DEBUG   : AM write failed: Broken pipe
12-13 21:26:01.177  1661  1678 I BootReceiver: Copying /data/tombstones/tombstone_04 to DropBox (SYSTEM_TOMBSTONE)
12-13 21:26:01.188  1661  4407 D         : HostConnection::get() New Host Connection established 0xdc957500, tid 4407
12-13 21:26:01.213  1661  1715 W InputDispatcher: channel 'f8991cc com.myapp/com.myapp.MainActivity (server)' ~ Consumer closed input channel or an error occurred.  events=0x9
12-13 21:26:01.214  1661  1715 E InputDispatcher: channel 'f8991cc com.myapp/com.myapp.MainActivity (server)' ~ Channel is unrecoverably broken and will be disposed!
12-13 21:26:01.215  1655  1655 I Zygote  : Process 4298 exited due to signal (6)
12-13 21:26:01.244  1661  2073 D GraphicsStats: Buffer count: 5

The text was updated successfully, but these errors were encountered:

agnivade · 2018-12-14T04:02:00Z

/cc @eliasnaur

eliasnaur · 2018-12-14T09:26:01Z

Which device is the crash from? Does gomobile bind -target android/amd64 ... work on the device?

llgoer · 2018-12-17T07:46:33Z

@eliasnaur Genymotion Android Emulator

eliasnaur · 2018-12-17T12:43:25Z

I see. The problem is probably that the Genymotion emulator has a different setup for thread local variables (TLS) than the official emulator and Android devices. If so, the abort comes from

go/src/runtime/cgo/gcc_android_amd64.c

Lines 55 to 62 in e453577

    
           if(ntofree >= nelem(tofree)) { 
        
           	fprintf(stderr, "runtime/cgo: could not obtain pthread_keys\n"); 
        
           	fprintf(stderr, "\ttried"); 
        
           	for(i=0; i<ntofree; i++) 
        
           		fprintf(stderr, " %#x", (unsigned)tofree[i]); 
        
           	fprintf(stderr, "\n"); 
        
           	abort(); 
        
           }

. Did you see the accompanying message ("runtime/cgo: could not obtain pthread_keys")? If so, you could try to increase the constant 128 at the line

go/src/runtime/cgo/gcc_android_amd64.c

Line 19 in e453577

pthread_key_t tofree[128], k;

. Try 384; that's what Go does on arm64 and arm.

Go's use of TLS on Android is an awful hack and there are efforts underway to remedy the situation: https://groups.google.com/forum/#!topic/golang-dev/yVrkFnYrYPE.

llgoer · 2018-12-20T09:04:35Z

will this error fix after go 1.12 released?

eliasnaur · 2018-12-20T09:20:19Z

Not yet. I suggested a change you could try to apply and see if that fixes the crash.

mandrigin · 2019-02-12T14:10:53Z

@eliasnaur we have (as I expect) the same issue on Genymotion on Android 7.0 and 7.1

02-12 09:07:37.325  2447  2482 D StatusNativeLogs: runtime/cgo: pthread_key_create failed
02-12 09:07:37.325  2447  2500 F libc    : Fatal signal 6 (SIGABRT), code -6 in tid 2500 (mqt_native_modu)
02-12 09:07:37.325   123   123 W         : debuggerd: handling request: pid=2447 uid=10063 gid=10063 tid=2500
02-12 09:07:37.396  2501  2501 F DEBUG   : *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
02-12 09:07:37.396  2501  2501 F DEBUG   : Build fingerprint: 'Android/vbox86p/vbox86p:7.0/NRD90M/91:userdebug/test-keys'
02-12 09:07:37.396  2501  2501 F DEBUG   : Revision: '0'
02-12 09:07:37.396  2501  2501 F DEBUG   : ABI: 'x86'
02-12 09:07:37.396  2501  2501 F DEBUG   : pid: 2447, tid: 2500, name: mqt_native_modu  >>> im.status.ethereum.debug <<<
02-12 09:07:37.396  2501  2501 F DEBUG   : signal 6 (SIGABRT), code -6 (SI_TKILL), fault addr --------
02-12 09:07:37.396  2501  2501 F DEBUG   :     eax 00000000  ebx 0000098f  ecx 000009c4  edx 00000006
02-12 09:07:37.396  2501  2501 F DEBUG   :     esi cc985978  edi cc985920
02-12 09:07:37.396  2501  2501 F DEBUG   :     xcs 00000023  xds 0000002b  xes 0000002b  xfs 0000006b  xss 0000002b
02-12 09:07:37.396  2501  2501 F DEBUG   :     eip f1df1bb9  ebp cc985538  esp cc9854dc  flags 00200292
02-12 09:07:37.397  2501  2501 F DEBUG   :
02-12 09:07:37.397  2501  2501 F DEBUG   : backtrace:
02-12 09:07:37.397  2501  2501 F DEBUG   :     #00 pc 00000bb9  [vdso:f1df1000] (__kernel_vsyscall+9)
02-12 09:07:37.397  2501  2501 F DEBUG   :     #01 pc 0007a2ec  /system/lib/libc.so (tgkill+28)
02-12 09:07:37.397  2501  2501 F DEBUG   :     #02 pc 00075b35  /system/lib/libc.so (pthread_kill+85)
02-12 09:07:37.397  2501  2501 F DEBUG   :     #03 pc 0002784a  /system/lib/libc.so (raise+42)
02-12 09:07:37.397  2501  2501 F DEBUG   :     #04 pc 0001ee26  /system/lib/libc.so (abort+86)
02-12 09:07:37.397  2501  2501 F DEBUG   :     #05 pc 00b4ad45  /data/app/im.status.ethereum.debug-1/lib/x86/libgojni.so

mandrigin · 2019-02-12T14:35:48Z

also, it is in gcc_android_386.c there, not 64 bits.

mandrigin · 2019-02-12T14:40:42Z

and it actually returns EAGAIN (11) if my logging is correct.

eliasnaur · 2019-02-12T14:42:52Z

Did you try increasing the size to 384 as I suggested in #29249 (comment)?

The proper fix is probably the same as for #29674.

mandrigin · 2019-02-12T14:44:52Z

yep, still fails. I added some logs will rebuild everything and get back to you!

mandrigin · 2019-02-12T14:49:23Z

it always failes on 115th iteration for me: runtime/cgo: (iteration 114) (gcc_android_i386) pthread_key_create failed 11

mandrigin · 2019-02-12T16:50:00Z

PTHREAD_KEYS_MAX is defined as 128 on this particular platform. It looks like that limits the number of "tries" there.

eliasnaur · 2019-02-12T17:01:35Z

That's too bad. I suppose the fix will have to wait for #29674.

gopherbot · 2019-03-28T15:33:11Z

Change https://golang.org/cl/169817 mentions this issue: cmd/link/ld,cmd/internal/obj,runtime: make the Android TLS offset dynamic

eliasnaur · 2019-03-29T11:02:17Z

@llgoer @mandrigin if you can, please test CL 169817 above and see if it fixes the crash. If so, you can close this issue.

…amic We're going to need a different TLS offset for Android Q, so the static offsets used for 386 and amd64 are no longer viable on Android. Introduce runtime·tls_g and use that for indexing into TLS storage. As an added benefit, we can then merge the TLS setup code for all android GOARCHs. While we're at it, remove a bunch of android special cases no longer needed. Updates #29674 Updates #29249 (perhaps fixes it) Change-Id: I77c7385aec7de8f1f6a4da7c9c79999157e39572 Reviewed-on: https://go-review.googlesource.com/c/go/+/169817 TryBot-Result: Gobot Gobot <[email protected]> Reviewed-by: Cherry Zhang <[email protected]>

eliasnaur · 2019-10-10T21:02:33Z

Timed out. Please open a new issue if the problem persists.

gopherbot added this to the Unreleased milestone Dec 14, 2018

gopherbot added the mobile Android, iOS, and x/mobile label Dec 14, 2018

agnivade added the WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided. label Dec 14, 2018

eliasnaur changed the title ~~x/mobile libc : Fatal signal 6 (SIGABRT), code -6 in tid 4402 (mqt_native_modu)~~ x/mobile libc : SIGABRT crash on the Genymotion Android emulator Dec 17, 2018

Catfriend1 mentioned this issue Mar 17, 2019

Android Q Beta - Wrong Bionic TLS alignment (golang) Catfriend1/syncthing-android#370

Closed

eliasnaur closed this as completed Oct 10, 2019

golang locked and limited conversation to collaborators Oct 9, 2020

gopherbot added the FrozenDueToAge label Oct 9, 2020

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x/mobile libc : SIGABRT crash on the Genymotion Android emulator #29249

x/mobile libc : SIGABRT crash on the Genymotion Android emulator #29249

llgoer commented Dec 14, 2018

agnivade commented Dec 14, 2018

eliasnaur commented Dec 14, 2018

llgoer commented Dec 17, 2018

eliasnaur commented Dec 17, 2018

llgoer commented Dec 20, 2018

eliasnaur commented Dec 20, 2018

mandrigin commented Feb 12, 2019

mandrigin commented Feb 12, 2019

mandrigin commented Feb 12, 2019

eliasnaur commented Feb 12, 2019

mandrigin commented Feb 12, 2019

mandrigin commented Feb 12, 2019

mandrigin commented Feb 12, 2019

eliasnaur commented Feb 12, 2019

gopherbot commented Mar 28, 2019

eliasnaur commented Mar 29, 2019

eliasnaur commented Oct 10, 2019

x/mobile libc : SIGABRT crash on the Genymotion Android emulator #29249

x/mobile libc : SIGABRT crash on the Genymotion Android emulator #29249

Comments

llgoer commented Dec 14, 2018

What version of Go are you using (go version)?

Does this issue reproduce with the latest release?

What operating system and processor architecture are you using (go env)?

What did you do?

What did you expect to see?

What did you see instead?

agnivade commented Dec 14, 2018

eliasnaur commented Dec 14, 2018

llgoer commented Dec 17, 2018

eliasnaur commented Dec 17, 2018

llgoer commented Dec 20, 2018

eliasnaur commented Dec 20, 2018

mandrigin commented Feb 12, 2019

mandrigin commented Feb 12, 2019

mandrigin commented Feb 12, 2019

eliasnaur commented Feb 12, 2019

mandrigin commented Feb 12, 2019

mandrigin commented Feb 12, 2019

mandrigin commented Feb 12, 2019

eliasnaur commented Feb 12, 2019

gopherbot commented Mar 28, 2019

eliasnaur commented Mar 29, 2019

eliasnaur commented Oct 10, 2019

What version of Go are you using (`go version`)?

What operating system and processor architecture are you using (`go env`)?