#5214: SIGSEGV in yieldCapability ()
-----------------------------+----------------------------------------------
Reporter: j.waldmann | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Runtime System | Version: 7.4.1
Resolution: | Keywords:
Os: Linux | Architecture: x86_64 (amd64)
Failure: Runtime crash | Difficulty:
Testcase: | Blockedby:
Blocking: | Related:
-----------------------------+----------------------------------------------
Changes (by vshabanov):
* cc: vshabanoff@… (added)
* status: closed => new
* version: 7.0.3 => 7.4.1
* resolution: wontfix =>
Comment:
I've got similar bug just after I've started using STM (through
Network.Riak.Connection.Pool). I'm also using FFI (curl & hsdns).
It starting to appear with -N2.
I've compiled with -debug and got
{{{
Queue: internal error: ASSERTION FAILED: file rts/Schedule.c, line 1268
(GHC version 7.4.1 for x86_64_unknown_linux)
Please report this as a GHC bug:
http://www.haskell.org/ghc/reportabug
}}}
gdb backtrace
{{{
Core was generated by `./Queue +RTS -N2'.
Program terminated with signal 6, Aborted.
#0 0x00007f394f848405 in raise () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt
#0 0x00007f394f848405 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f394f84b680 in abort () from /lib/x86_64-linux-gnu/libc.so.6
#2 0x0000000002116fa2 in rtsFatalInternalErrorFn (
s=0x21e64c8 "ASSERTION FAILED: file %s, line %u\n", ap=0x7f394b3f4870)
at rts/RtsMessages.c:170
#3 0x0000000002116b5b in barf (
s=0x21e64c8 "ASSERTION FAILED: file %s, line %u\n")
at rts/RtsMessages.c:42
#4 0x0000000002116bbe in _assertFail (filename=0x21e7541
"rts/Schedule.c",
linenum=1268) at rts/RtsMessages.c:57
#5 0x000000000211d6e4 in scheduleHandleThreadFinished (cap=0x27a40d0,
task=0x27fe060, t=0x7f3943ae05d8) at rts/Schedule.c:1268
#6 0x000000000211c891 in schedule (initialCapability=0x27a40d0,
task=0x27fe060) at rts/Schedule.c:545
#7 0x000000000211ea47 in scheduleWaitThread (tso=0x7f394c52d488,
ret=0x7f394b3f4ab0, pcap=0x7f394b3f4ab8) at rts/Schedule.c:2154
#8 0x0000000002113f1f in rts_evalIO (cap=0x7f394b3f4ab8,
p=0x7f394c52d0d8,
ret=0x7f394b3f4ab0) at rts/RtsAPI.c:456
#9 0x0000000001242d82 in NetworkziCurlziEasy_dmd3 ()
#10 0x00007f3950dcab48 in ?? ()
from /usr/lib/x86_64-linux-gnu/libcurl-gnutls.so.4
#11 0x00007f3950de5434 in ?? ()
from /usr/lib/x86_64-linux-gnu/libcurl-gnutls.so.4
#12 0x00007f3950ddec42 in ?? ()
from /usr/lib/x86_64-linux-gnu/libcurl-gnutls.so.4
#13 0x00007f3950de9230 in ?? ()
from /usr/lib/x86_64-linux-gnu/libcurl-gnutls.so.4
#14 0x00007f3950de9ba5 in curl_multi_perform ()
from /usr/lib/x86_64-linux-gnu/libcurl-gnutls.so.4
#15 0x0000000000718297 in sjos_info ()
#16 0x0000000000000000 in ?? ()
}}}
You can download -Ds output from http://stuff.bazqux.com/Ds.bz2
With parallel GC disabled I'm getting different error (and I'm getting it
much faster -- usually in a minute from program start)
{{{
Queue: internal error: ASSERTION FAILED: file rts/Capability.c, line 444
(GHC version 7.4.1 for x86_64_unknown_linux)
Please report this as a GHC bug:
http://www.haskell.org/ghc/reportabug
}}}
gdb backtrace:
{{{
Core was generated by `./Queue +RTS -N8 -I10 -qg'.
Program terminated with signal 6, Aborted.
#0 0x00007f0785c74405 in raise () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt
#0 0x00007f0785c74405 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f0785c77680 in abort () from /lib/x86_64-linux-gnu/libc.so.6
#2 0x0000000002116fa2 in rtsFatalInternalErrorFn (
s=0x21e64c8 "ASSERTION FAILED: file %s, line %u\n", ap=0x7f077a0fcb80)
at rts/RtsMessages.c:170
#3 0x0000000002116b5b in barf (
s=0x21e64c8 "ASSERTION FAILED: file %s, line %u\n") at
rts/RtsMessages.c:42
#4 0x0000000002116bbe in _assertFail (filename=0x21e41de
"rts/Capability.c",
linenum=444) at rts/RtsMessages.c:57
#5 0x00000000021111a9 in releaseCapability_ (cap=0x3db9f70,
always_wakeup=rtsFalse) at rts/Capability.c:444
#6 0x000000000211160c in releaseCapabilityAndQueueWorker (cap=0x3db9f70)
at rts/Capability.c:565
#7 0x0000000002111b50 in yieldCapability (pCap=0x7f077a0fcd48,
task=0x3e5b2e0)
at rts/Capability.c:692
#8 0x000000000211cc1f in scheduleYield (pcap=0x7f077a0fcd70,
task=0x3e5b2e0)
at rts/Schedule.c:659
#9 0x000000000211c245 in schedule (initialCapability=0x3db9f70,
task=0x3e5b2e0) at rts/Schedule.c:332
#10 0x000000000211ea47 in scheduleWaitThread (tso=0x7f077b1075b8,
ret=0x7f077a0fce50, pcap=0x7f077a0fce98) at rts/Schedule.c:2154
#11 0x0000000002113f8e in rts_evalStableIO (cap=0x7f077a0fce98, s=0x12,
ret=0x0) at rts/RtsAPI.c:478
#12 0x0000000002137b3b in forkOS_createThreadWrapper (entry=0x12)
at rts/posix/OSThreads.c:200
#13 0x00007f0785fccb40 in start_thread ()
from /lib/x86_64-linux-gnu/libpthread.so.0
#14 0x00007f0785d1736d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#15 0x0000000000000000 in ?? ()
}}}
gdb backtrace w/o -debug:
{{{
Core was generated by `./Queue +RTS -N8 -I10 -S -sstderr -qg'.
Program terminated with signal 11, Segmentation fault.
#0 0x0000000002110ede in yieldCapability ()
(gdb) bt
#0 0x0000000002110ede in yieldCapability ()
#1 0x0000000002117153 in schedule ()
#2 0x000000000211794b in scheduleWorker ()
#3 0x00002b72f82bfb40 in start_thread ()
from /lib/x86_64-linux-gnu/libpthread.so.0
#4 0x00002b72f85aa36d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#5 0x0000000000000000 in ?? ()
}}}
Without Network.Riak.Connection.Pool (which uses
http://hackage.haskell.org/package/resource-pool internally, which uses
STM) program works without any error for days.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5214#comment:5>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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