Date: Wed, 17 Jun 2015 18:19:40 +0000 From: bugzilla-noreply@freebsd.org To: mono@FreeBSD.org Subject: maintainer-feedback requested: [Bug 200937] lang/mono: [patch] mono-sgen SIGSEGV during build Message-ID: <bug-200937-23699-Igw0DLvWlw@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-200937-23699@https.bugs.freebsd.org/bugzilla/> References: <bug-200937-23699@https.bugs.freebsd.org/bugzilla/>
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Thomas Hurst <tom@hur.st> has reassigned Bugzilla Automation <bugzilla@FreeBSD.org>'s request for maintainer-feedback to mono@FreeBSD.or= g: Bug 200937: lang/mono: [patch] mono-sgen SIGSEGV during build https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D200937 --- Description --- Created attachment 157839 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D157839&action= =3Dedit Patch: increase _WAPI_PRIVATE_MAX_SLOTS System: FreeBSD 10.1-STABLE #0 r283969: Wed Jun 3 22:59:38 BST 2015 Dual hex-core Westmere Xeon, 155GB RAM. For a while now lang/mono's been segfaulting during build: ------------------------------------------------------------------------ Making all in runtime gmake[3]: Entering directory '/usr/obj/usr/ports/lang/mono/work/mono-4.0.1/runtime' if test -w /usr/obj/usr/ports/lang/mono/work/mono-4.0.1/mcs; then :; else c= hmod -R +w /usr/obj/usr/ports/lang/mono/work/mono-4.0.1/mcs; fi cd /usr/obj/usr/ports/lang/mono/work/mono-4.0.1/mcs && gmake --no-print-directory -s NO_DIR_CHECK=3D1 PROFILES=3D'binary_reference_assem= blies net_4_5 xbuild_12 xbuild_14 ' CC=3D'cc' all-profiles gmake[7]: mcs: Command not found build/profiles/basic.make:93: recipe for target 'build/deps/basic-profile-check.exe' failed gmake[7]: *** [build/deps/basic-profile-check.exe] Error 127 *** The compiler 'mcs' doesn't appear to be usable. *** Trying the 'monolite' directory. =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D Got a SIGSEGV while executing native code. This usually indicates a fatal error in the mono runtime or one of the native libraries used by your application. =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D build/profiles/basic.make:93: recipe for target 'build/deps/basic-profile-check.exe' failed gmake[9]: *** [build/deps/basic-profile-check.exe] Abort trap (core dumped) *** The contents of your 'monolite' directory may be out-of-date *** You may want to try 'make get-monolite-latest' build/profiles/basic.make:77: recipe for target 'do-profile-check-monolite' failed gmake[9]: *** [do-profile-check-monolite] Error 1 build/profiles/basic.make:60: recipe for target 'do-profile-check' failed gmake[8]: *** [do-profile-check] Error 2 build/profiles/basic.make:85: recipe for target 'do-profile-check-monolite' failed gmake[7]: *** [do-profile-check-monolite] Error 2 build/profiles/basic.make:60: recipe for target 'do-profile-check' failed gmake[6]: *** [do-profile-check] Error 2 Makefile:44: recipe for target 'profile-do--basic--all' failed gmake[5]: *** [profile-do--basic--all] Error 2 Makefile:40: recipe for target 'profiles-do--all' failed gmake[4]: *** [profiles-do--all] Error 2 Makefile:555: recipe for target 'all-local' failed gmake[3]: *** [all-local] Error 2 gmake[3]: Leaving directory '/usr/obj/usr/ports/lang/mono/work/mono-4.0.1/runtime' Makefile:522: recipe for target 'all-recursive' failed gmake[2]: *** [all-recursive] Error 1 gmake[2]: Leaving directory '/usr/obj/usr/ports/lang/mono/work/mono-4.0.1' Makefile:449: recipe for target 'all' failed gmake[1]: *** [all] Error 2 gmake[1]: Leaving directory '/usr/obj/usr/ports/lang/mono/work/mono-4.0.1' *** Error code 1 ------------------------------------------------------------------------ I can't reproduce it on a 24GB 10.1-RELEASE system. I'm guessing it's a high-memory/tuning issue. mono-sgen.core reveals the following backtrace: #0 0x00000008012eacaa in thr_kill () from /lib/libc.so.7 #1 0x00000008012eac16 in raise () from /lib/libc.so.7 #2 0x00000008012e9409 in abort () from /lib/libc.so.7 #3 0x00000000004b1903 in mono_handle_native_sigsegv (signal=3D<value optim= ized out>, ctx=3D<value optimized out>, info=3D<value optimized out>) at mini-exceptions.c:2386 #4 0x000000000041eeac in mono_sigsegv_signal_handler (_dummy=3D11, _info=3D0x7fffffffd2b0, context=3D0x7fffffffcf40) at mini.c:6771 #5 0x0000000800f8f997 in pthread_sigmask () from /lib/libthr.so.3 #6 0x0000000800f8f1a8 in pthread_getspecific () from /lib/libthr.so.3 #7 <signal handler called> #8 0x0000000000607f83 in wapi_init () at handles.c:278 #9 0x00000000005a41d5 in mono_init_internal (filename=3D0x7fffffffdb82 ".//class/lib/monolite/basic.exe", exe_filename=3D0x7fffffffdb82 ".//class/lib/monolite/basic.exe", runtime_version=3D0x0) at domain.c:504 #10 0x000000000041f846 in mini_init (filename=3D<value optimized out>, runtime_version=3D<value optimized out>) at mini.c:7404 #11 0x0000000000484b4c in mono_main (argc=3D8, argv=3D0x7fffffffd628) at driver.c:1921 #12 0x000000000041600f in _start () Turns out this line in mono/io-layer/handles.c immediately before the segfa= ult is failing, returning -1: _wapi_global_signal_handle =3D _wapi_handle_new (WAPI_HANDLE_EVENT, NUL= L); Drilling down, I see the array's running out of slots, as defined in mono/io-layer/handles-private.h:25 #define _WAPI_PRIVATE_MAX_SLOTS (1024 * 16) Increasing this to 1024 * 17 fixes the build. Patch to drop into files/ attached.=
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