add getprotobyname from musl #19
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ghost
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penberg
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Aug 16, 2013
Starting up Cassandra with debug memory allocator GPFs as follows:
Breakpoint 1, abort () at ../../runtime.cc:85
85 {
(gdb) bt
#0 abort () at ../../runtime.cc:85
#1 0x0000000000375812 in osv::generate_signal (siginfo=..., ef=ef@entry=0xffffc0003ffe3008) at ../../libc/signal.cc:40
#2 0x000000000037587c in osv::handle_segmentation_fault (addr=addr@entry=18446708889768681440, ef=ef@entry=0xffffc0003ffe3008)
at ../../libc/signal.cc:55
#3 0x00000000002fba02 in page_fault (ef=0xffffc0003ffe3008) at ../../core/mmu.cc:876
#4 <signal handler called>
#5 dbg::realloc (v=v@entry=0xffffe00019b3e000, size=size@entry=16) at ../../core/mempool.cc:846
#6 0x000000000032654c in realloc (obj=0xffffe00019b3e000, size=16) at ../../core/mempool.cc:870
#7 0x0000100000627743 in ?? ()
#8 0x00002000001fe770 in ?? ()
#9 0x00002000001fe780 in ?? ()
#10 0x00002000001fe710 in ?? ()
#11 0x00002000001fe700 in ?? ()
#12 0xffffe000170e8000 in ?? ()
#13 0x0000000200000001 in ?? ()
#14 0x0000000000000020 in ?? ()
#15 0x00002000001ffe70 in ?? ()
#16 0xffffe000170e0004 in ?? ()
#17 0x000000000036f361 in strcpy (dest=0x100001087420 "", src=<optimized out>) at ../../libc/string/strcpy.c:8
#18 0x0000100000629b53 in ?? ()
#19 0xffffe00019b22000 in ?? ()
#20 0x0000000000000001 in ?? ()
#21 0x0000000000000000 in ?? ()
The problem was introduced in commit 1ea5672 ("memory: let the debug
allocator mimic the standard allocator more closely") which forgot
to convert realloc() to use 'pad_before'.
penberg
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Aug 26, 2013
If a crashed OSv guest is restarted, ZFS mount causes a GPF in early startup: VFS: mounting zfs at /usr zfs: mounting osv/usr from device /dev/vblk1 Aborted GDB backtrace points finger at zfs_rmnode(): #0 processor::halt_no_interrupts () at ../../arch/x64/processor.hh:212 #1 0x00000000003e7f2a in osv::halt () at ../../core/power.cc:20 #2 0x000000000021cdd4 in abort (msg=0x636df0 "Aborted\n") at ../../runtime.cc:95 #3 0x000000000021cda2 in abort () at ../../runtime.cc:86 #4 0x000000000044c149 in osv::generate_signal (siginfo=..., ef=0xffffc0003ffe7008) at ../../libc/signal.cc:44 #5 0x000000000044c220 in osv::handle_segmentation_fault (addr=72, ef=0xffffc0003ffe7008) at ../../libc/signal.cc:55 #6 0x0000000000366df3 in page_fault (ef=0xffffc0003ffe7008) at ../../core/mmu.cc:876 #7 <signal handler called> #8 0x0000000000345eaa in zfs_rmnode (zp=0xffffc0003d1de400) at ../../bsd/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_dir.c:611 #9 0x000000000035650c in zfs_zinactive (zp=0xffffc0003d1de400) at ../../bsd/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_znode.c:1355 #10 0x0000000000345be1 in zfs_unlinked_drain (zfsvfs=0xffffc0003ddfe000) at ../../bsd/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_dir.c:523 #11 0x000000000034f45c in zfsvfs_setup (zfsvfs=0xffffc0003ddfe000, mounting=true) at ../../bsd/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c:881 #12 0x000000000034f7a4 in zfs_domount (vfsp=0xffffc0003de02000, osname=0x6b14cb "osv/usr") at ../../bsd/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c:1016 #13 0x000000000034f98c in zfs_mount (mp=0xffffc0003de02000, dev=0x6b14d7 "/dev/vblk1", flags=0, data=0x6b14cb) at ../../bsd/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c:1415 #14 0x0000000000406852 in sys_mount (dev=0x6b14d7 "/dev/vblk1", dir=0x6b14a3 "/usr", fsname=0x6b14d3 "zfs", flags=0, data=0x6b14cb) at ../../fs/vfs/vfs_mount.c:171 #15 0x00000000003eff97 in mount_usr () at ../../fs/vfs/main.cc:1415 #16 0x0000000000203a89 in do_main_thread (_args=0xffffc0003fe9ced0) at ../../loader.cc:215 #17 0x0000000000448575 in pthread_private::pthread::pthread(void* (*)(void*), void*, sigset_t, pthread_private::thread_attr const*)::{lambda()#1}::operator()() const () at ../../libc/pthread.cc:59 #18 0x00000000004499d3 in std::_Function_handler<void(), pthread_private::pthread::pthread(void* (*)(void*), void*, sigset_t, const pthread_private::thread_attr*)::__lambda0>::_M_invoke(const std::_Any_data &) (__functor=...) at ../../external/gcc.bin/usr/include/c++/4.8.1/functional:2071 #19 0x000000000037e602 in std::function<void ()>::operator()() const (this=0xffffc0003e170038) at ../../external/gcc.bin/usr/include/c++/4.8.1/functional:2468 #20 0x00000000003bae3e in sched::thread::main (this=0xffffc0003e170010) at ../../core/sched.cc:581 #21 0x00000000003b8c92 in sched::thread_main_c (t=0xffffc0003e170010) at ../../arch/x64/arch-switch.hh:133 #22 0x0000000000399c8e in thread_main () at ../../arch/x64/entry.S:101 The problem is that ZFS tries to check if the znode is an attribute directory and trips over zp->z_vnode being NULL. However, as explained in commit b7ee91e ("zfs: port vop_lookup"), we don't even support extended attributes so drop the check completely for OSv.
penberg
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Aug 26, 2013
If a crashed OSv guest is restarted, ZFS mount causes a GPF in early startup: VFS: mounting zfs at /usr zfs: mounting osv/usr from device /dev/vblk1 Aborted GDB backtrace points finger at zfs_rmnode(): #0 processor::halt_no_interrupts () at ../../arch/x64/processor.hh:212 #1 0x00000000003e7f2a in osv::halt () at ../../core/power.cc:20 #2 0x000000000021cdd4 in abort (msg=0x636df0 "Aborted\n") at ../../runtime.cc:95 #3 0x000000000021cda2 in abort () at ../../runtime.cc:86 #4 0x000000000044c149 in osv::generate_signal (siginfo=..., ef=0xffffc0003ffe7008) at ../../libc/signal.cc:44 #5 0x000000000044c220 in osv::handle_segmentation_fault (addr=72, ef=0xffffc0003ffe7008) at ../../libc/signal.cc:55 #6 0x0000000000366df3 in page_fault (ef=0xffffc0003ffe7008) at ../../core/mmu.cc:876 #7 <signal handler called> #8 0x0000000000345eaa in zfs_rmnode (zp=0xffffc0003d1de400) at ../../bsd/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_dir.c:611 #9 0x000000000035650c in zfs_zinactive (zp=0xffffc0003d1de400) at ../../bsd/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_znode.c:1355 #10 0x0000000000345be1 in zfs_unlinked_drain (zfsvfs=0xffffc0003ddfe000) at ../../bsd/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_dir.c:523 #11 0x000000000034f45c in zfsvfs_setup (zfsvfs=0xffffc0003ddfe000, mounting=true) at ../../bsd/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c:881 #12 0x000000000034f7a4 in zfs_domount (vfsp=0xffffc0003de02000, osname=0x6b14cb "osv/usr") at ../../bsd/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c:1016 #13 0x000000000034f98c in zfs_mount (mp=0xffffc0003de02000, dev=0x6b14d7 "/dev/vblk1", flags=0, data=0x6b14cb) at ../../bsd/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c:1415 #14 0x0000000000406852 in sys_mount (dev=0x6b14d7 "/dev/vblk1", dir=0x6b14a3 "/usr", fsname=0x6b14d3 "zfs", flags=0, data=0x6b14cb) at ../../fs/vfs/vfs_mount.c:171 #15 0x00000000003eff97 in mount_usr () at ../../fs/vfs/main.cc:1415 #16 0x0000000000203a89 in do_main_thread (_args=0xffffc0003fe9ced0) at ../../loader.cc:215 #17 0x0000000000448575 in pthread_private::pthread::pthread(void* (*)(void*), void*, sigset_t, pthread_private::thread_attr const*)::{lambda()#1}::operator()() const () at ../../libc/pthread.cc:59 #18 0x00000000004499d3 in std::_Function_handler<void(), pthread_private::pthread::pthread(void* (*)(void*), void*, sigset_t, const pthread_private::thread_attr*)::__lambda0>::_M_invoke(const std::_Any_data &) (__functor=...) at ../../external/gcc.bin/usr/include/c++/4.8.1/functional:2071 #19 0x000000000037e602 in std::function<void ()>::operator()() const (this=0xffffc0003e170038) at ../../external/gcc.bin/usr/include/c++/4.8.1/functional:2468 #20 0x00000000003bae3e in sched::thread::main (this=0xffffc0003e170010) at ../../core/sched.cc:581 #21 0x00000000003b8c92 in sched::thread_main_c (t=0xffffc0003e170010) at ../../arch/x64/arch-switch.hh:133 #22 0x0000000000399c8e in thread_main () at ../../arch/x64/entry.S:101 The problem is that ZFS tries to check if the znode is an attribute directory and trips over zp->z_vnode being NULL. However, as explained in commit b7ee91e ("zfs: port vop_lookup"), we don't even support extended attributes so drop the check completely for OSv.
penberg
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Aug 26, 2013
Fix mincore() to deal with unmapped addresses like msync() does. This fixes a SIGSEGV in libunwind's access_mem() when leak detector is enabled: (gdb) bt #0 page_fault (ef=0xffffc0003ffe7008) at ../../core/mmu.cc:871 #1 <signal handler called> #2 ContiguousSpace::block_start_const (this=<optimized out>, p=0x77d2f3968) at /usr/src/debug/java-1.7.0-openjdk-1.7.0.25-2.3.12.3.fc19.x86_64/openjdk/hotspot/src/share/vm/oops/oop.inline.hpp:411 #3 0x00001000008ae16c in GenerationBlockStartClosure::do_space (this=0x2000001f9100, s=<optimized out>) at /usr/src/debug/java-1.7.0-openjdk-1.7.0.25-2.3.12.3.fc19.x86_64/openjdk/hotspot/src/share/vm/memory/generation.cpp:242 #4 0x00001000007f097c in DefNewGeneration::space_iterate (this=0xffffc0003fb68c00, blk=0x2000001f9100, usedOnly=<optimized out>) at /usr/src/debug/java-1.7.0-openjdk-1.7.0.25-2.3.12.3.fc19.x86_64/openjdk/hotspot/src/share/vm/memory/defNewGeneration.cpp:480 #5 0x00001000008aca0e in Generation::block_start (this=<optimized out>, p=<optimized out>) at /usr/src/debug/java-1.7.0-openjdk-1.7.0.25-2.3.12.3.fc19.x86_64/openjdk/hotspot/src/share/vm/memory/generation.cpp:251 #6 0x0000100000b06d2f in os::print_location (st=st@entry=0x2000001f9560, x=32165017960, verbose=verbose@entry=false) at /usr/src/debug/java-1.7.0-openjdk-1.7.0.25-2.3.12.3.fc19.x86_64/openjdk/hotspot/src/share/vm/runtime/os.cpp:868 #7 0x0000100000b11b5b in os::print_register_info (st=0x2000001f9560, context=0x2000001f9740) at /usr/src/debug/java-1.7.0-openjdk-1.7.0.25-2.3.12.3.fc19.x86_64/openjdk/hotspot/src/os_cpu/linux_x86/vm/os_linux_x86.cpp:839 #8 0x0000100000c6cde8 in VMError::report (this=0x2000001f9610, st=st@entry=0x2000001f9560) at /usr/src/debug/java-1.7.0-openjdk-1.7.0.25-2.3.12.3.fc19.x86_64/openjdk/hotspot/src/share/vm/utilities/vmError.cpp:551 #9 0x0000100000c6da3b in VMError::report_and_die (this=this@entry=0x2000001f9610) at /usr/src/debug/java-1.7.0-openjdk-1.7.0.25-2.3.12.3.fc19.x86_64/openjdk/hotspot/src/share/vm/utilities/vmError.cpp:984 #10 0x0000100000b1109f in JVM_handle_linux_signal (sig=11, info=0x2000001f9bb8, ucVoid=0x2000001f9740, abort_if_unrecognized=<optimized out>) at /usr/src/debug/java-1.7.0-openjdk-1.7.0.25-2.3.12.3.fc19.x86_64/openjdk/hotspot/src/os_cpu/linux_x86/vm/os_linux_x86.cpp:528 #11 0x000000000039f242 in call_signal_handler (frame=0x2000001f9b10) at ../../arch/x64/signal.cc:69 #12 <signal handler called> #13 0x000000000057d721 in access_mem () #14 0x000000000057cb1d in dwarf_get () #15 0x000000000057ce51 in _ULx86_64_step () #16 0x00000000004315fd in backtrace (buffer=0x1ff9d80 <memory::alloc_tracker::remember(void*, int)::bt>, size=20) at ../../libc/misc/backtrace.cc:16 #17 0x00000000003b8d99 in memory::alloc_tracker::remember (this=0x1777ae0 <memory::tracker>, addr=0xffffc0004508de00, size=54) at ../../core/alloctracker.cc:59 #18 0x00000000003b0504 in memory::tracker_remember (addr=0xffffc0004508de00, size=54) at ../../core/mempool.cc:43 #19 0x00000000003b2152 in std_malloc (size=54) at ../../core/mempool.cc:723 #20 0x00000000003b259c in malloc (size=54) at ../../core/mempool.cc:856 #21 0x0000100001615e4c in JNU_GetStringPlatformChars (env=env@entry=0xffffc0003a4dc1d8, jstr=jstr@entry=0xffffc0004591b800, isCopy=isCopy@entry=0x0) at ../../../src/share/native/common/jni_util.c:801 #22 0x000010000161ada6 in Java_java_io_UnixFileSystem_getBooleanAttributes0 (env=0xffffc0003a4dc1d8, this=<optimized out>, file=<optimized out>) at ../../../src/solaris/native/java/io/UnixFileSystem_md.c:111 #23 0x000020000021ed8e in ?? () #24 0x00002000001faa58 in ?? () #25 0x00002000001faac0 in ?? () #26 0x00002000001faa50 in ?? () #27 0x0000000000000000 in ?? () Spotted by Avi Kivity.
penberg
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Sep 3, 2013
If "-javaagent" option is enabled, the JVM page faults: (gdb) bt #0 0x000000000033d432 in halt_no_interrupts () at ../../arch/x64/processor.hh:232 #1 osv::halt () at ../../core/power.cc:20 #2 0x0000000000214d82 in abort (msg=msg@entry=0x57ea90 "page fault outside application") at ../../runtime.cc:98 #3 0x00000000002fd4d8 in page_fault (ef=0xffffc0003ffe6008) at ../../core/mmu.cc:943 #4 <signal handler called> #5 0x0000000000373169 in __stpncpy (d=d@entry=0x2000001fe7f0 "dlsym: symbol JVM_begin_signal_setting not found", s=0x0, n=1023) at ../../libc/string/stpncpy.c:19 #6 0x0000000000373ad1 in strncpy (d=0x2000001fe7f0 "dlsym: symbol JVM_begin_signal_setting not found", s=<optimized out>, n=<optimized out>) at ../../libc/string/strncpy.c:7 #7 0x0000100000b0ab67 in os::dll_load (filename=filename@entry=0x2000001febf0 "libinstrument.so", ebuf=ebuf@entry=0x2000001fe7f0 "dlsym: symbol JVM_begin_signal_setting not found", ebuflen=ebuflen@entry=1024) at /usr/src/debug/java-1.7.0-openjdk-1.7.0.25-2.3.12.3.fc19.x86_64/openjdk/hotspot/src/os/linux/vm/os_linux.cpp:1841 #8 0x0000100000c247eb in lookup_on_load (agent=agent@entry=0xffffc0003976ccc0, on_load_symbols=on_load_symbols@entry=0x2000001ffd40, num_symbol_entries=1) at /usr/src/debug/java-1.7.0-openjdk-1.7.0.25-2.3.12.3.fc19.x86_64/openjdk/hotspot/src/share/vm/runtime/thread.cpp:3585 #9 0x0000100000c2a64f in lookup_agent_on_load (agent=0xffffc0003976ccc0) at /usr/src/debug/java-1.7.0-openjdk-1.7.0.25-2.3.12.3.fc19.x86_64/openjdk/hotspot/src/share/vm/runtime/thread.cpp:3617 #10 create_vm_init_agents () at /usr/src/debug/java-1.7.0-openjdk-1.7.0.25-2.3.12.3.fc19.x86_64/openjdk/hotspot/src/share/vm/runtime/thread.cpp:3656 #11 Threads::create_vm (args=<optimized out>, canTryAgain=canTryAgain@entry=0x2000001ffdb0) at /usr/src/debug/java-1.7.0-openjdk-1.7.0.25-2.3.12.3.fc19.x86_64/openjdk/hotspot/src/share/vm/runtime/thread.cpp:3177 #12 0x000010000094d7b0 in JNI_CreateJavaVM (vm=0x2000001ffe58, penv=0x2000001ffe60, args=<optimized out>) at /usr/src/debug/java-1.7.0-openjdk-1.7.0.25-2.3.12.3.fc19.x86_64/openjdk/hotspot/src/share/vm/prims/jni.cpp:5127 #13 0x0000100000007b3b in main (argc=<optimized out>, argv=0xffffc0003fff2008) at ../../java/java.cc:73 #14 0x0000000000208ac8 in run_main (prog=<optimized out>, args=args@entry=0xffffc0003fe9bfa0) at ../../loader.cc:196 #15 0x0000000000208c68 in do_main_thread (_args=0xffffc0003fe9bfa0) at ../../loader.cc:217 #16 0x0000000000376d36 in operator() (__closure=0xffffc0003b5e2a00) at ../../libc/pthread.cc:59 #17 std::_Function_handler<void(), pthread_private::pthread::pthread(void* (*)(void*), void*, sigset_t, const pthread_private::thread_attr*)::__lambda0>::_M_invoke(const std::_Any_data &) (__functor=...) at ../../external/gcc.bin/usr/include/c++/4.8.1/functional:2071 #18 0x000000000032ed6b in main (this=0xffffc0003a807010) at ../../core/sched.cc:536 #19 sched::thread_main_c (t=0xffffc0003a807010) at ../../arch/x64/arch-switch.hh:133 #20 0x000000000031873e in thread_main () at ../../arch/x64/entry.S:101 Backtrace stopped: frame did not save the PC This is caused by the JVM expecting dlerror() to return an error string if dlopen() fails. Fix that up.
asias
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Aug 28, 2014
$ sudo scripts/run.py -c1 -nv -m4g -e "/tests/tst-epoll.so" ... PASS: epoll_wait PASS: write PASS: epoll_wait PASS: epoll_ctl MOD PASS: epoll_wait PASS: epoll_ctl ADD PASS: errno == EEXIST Assertion failed: i != f_epolls->end() (/home/asias/src/cloudius-systems/osv/fs/vfs/kern_descrip.cc: epoll_del: 249) [backtrace] 0x0000000000223648 <__assert_fail+24> 0x000000000041743a <file::epoll_del(epoll_ptr)+186> 0x00000000003f7682 <epoll_ctl+786> 0x0000100000c032db <???+12595931> 0x000000000040510a <osv::application::run_main(std::string, int, char**)+266> 0x0000000000405847 <osv::application::run_main()+551> 0x000000000020bbd1 <osv::application::main()+97> 0x0000000000406698 <???+4220568> 0x0000000000433745 <???+4405061> 0x00000000003e38aa <thread_main_c+26> 0x0000000000389c75 <???+3710069> (gdb) bt #0 0x00000000003f8e92 in cli_hlt () at /home/asias/src/cloudius-systems/osv/arch/x64/processor.hh:242 cloudius-systems#1 halt_no_interrupts () at /home/asias/src/cloudius-systems/osv/arch/x64/arch.hh:49 cloudius-systems#2 osv::halt () at /home/asias/src/cloudius-systems/osv/core/power.cc:34 cloudius-systems#3 0x000000000022360f in abort (fmt=fmt@entry=0x603b60 "Assertion failed: %s (%s: %s: %d)\n") at /home/asias/src/cloudius-systems/osv/runtime.cc:150 cloudius-systems#4 0x0000000000223649 in __assert_fail (expr=<optimized out>, file=<optimized out>, line=<optimized out>, func=<optimized out>) at /home/asias/src/cloudius-systems/osv/runtime.cc:156 cloudius-systems#5 0x000000000041743b in file::epoll_del (this=<optimized out>, ep=...) at /home/asias/src/cloudius-systems/osv/fs/vfs/kern_descrip.cc:249 cloudius-systems#6 0x00000000003f7683 in del (key=..., this=0xffff800001746040) at /home/asias/src/cloudius-systems/osv/core/epoll.cc:96 cloudius-systems#7 epoll_ctl (epfd=<optimized out>, op=<optimized out>, fd=<optimized out>, event=0x2000002f9d50) at /home/asias/src/cloudius-systems/osv/core/epoll.cc:283 cloudius-systems#8 0x0000100000c032dc in test_epolloneshot () at /home/asias/src/cloudius-systems/osv/tests/tst-epoll.cc:78 cloudius-systems#9 main (ac=<optimized out>, av=<optimized out>) at /home/asias/src/cloudius-systems/osv/tests/tst-epoll.cc:231 cloudius-systems#10 0x000000000040510b in osv::application::run_main (this=this@entry=0xffffa00001561f18, path="/tests/tst-epoll.so", argc=argc@entry=1, argv=argv@entry=0xffffa00002994760) at /home/asias/src/cloudius-systems/osv/core/app.cc:182 cloudius-systems#11 0x0000000000405848 in osv::application::run_main (this=this@entry=0xffffa00001561f18) at /home/asias/src/cloudius-systems/osv/core/app.cc:197 cloudius-systems#12 0x000000000020bbd2 in osv::application::main (this=0xffffa00001561f18) at /home/asias/src/cloudius-systems/osv/core/app.cc:144 cloudius-systems#13 0x0000000000406699 in operator() (__closure=0x0, app=<optimized out>) at /home/asias/src/cloudius-systems/osv/core/app.cc:104 cloudius-systems#14 osv::application::__lambda3::_FUN (app=<optimized out>) at /home/asias/src/cloudius-systems/osv/core/app.cc:106 cloudius-systems#15 0x0000000000433746 in operator() (__closure=0xffffa00003320600) at /home/asias/src/cloudius-systems/osv/libc/pthread.cc:97 cloudius-systems#16 std::_Function_handler<void(), pthread_private::pthread::pthread(void* (*)(void*), void*, sigset_t, const pthread_private::thread_attr*)::__lambda7>::_M_invoke(const std::_Any_data &) (__functor=...) at /home/asias/src/cloudius-systems/osv/external/x64/gcc.bin/usr/include/c++/4.8.2/functional:2071 cloudius-systems#17 0x00000000003e38ab in main (this=0xffff80000354d050) at /home/asias/src/cloudius-systems/osv/core/sched.cc:940 cloudius-systems#18 sched::thread_main_c (t=0xffff80000354d050) at /home/asias/src/cloudius-systems/osv/arch/x64/arch-switch.hh:137 cloudius-systems#19 0x0000000000389c76 in thread_main () at /home/asias/src/cloudius-systems/osv/arch/x64/entry.S:113
asias
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Aug 28, 2014
After:
Revert "Revert "epoll: fix up lock ordering issues""
This reverts commit 408a982.
I saw the following without this patch:
$ sudo scripts/run.py -c1 -nv -m4g -e "/tests/tst-epoll.so"
...
PASS: epoll_wait
PASS: write
PASS: epoll_wait
PASS: epoll_ctl MOD
PASS: epoll_wait
PASS: epoll_ctl ADD
PASS: errno == EEXIST
Assertion failed: i != f_epolls->end() (/home/asias/src/cloudius-systems/osv/fs/vfs/kern_descrip.cc: epoll_del: 249)
[backtrace]
0x0000000000223648 <__assert_fail+24>
0x000000000041743a <file::epoll_del(epoll_ptr)+186>
0x00000000003f7682 <epoll_ctl+786>
0x0000100000c032db <???+12595931>
0x000000000040510a <osv::application::run_main(std::string, int, char**)+266>
0x0000000000405847 <osv::application::run_main()+551>
0x000000000020bbd1 <osv::application::main()+97>
0x0000000000406698 <???+4220568>
0x0000000000433745 <???+4405061>
0x00000000003e38aa <thread_main_c+26>
0x0000000000389c75 <???+3710069>
(gdb) bt
#0 0x00000000003f8e92 in cli_hlt () at /home/asias/src/cloudius-systems/osv/arch/x64/processor.hh:242
cloudius-systems#1 halt_no_interrupts () at /home/asias/src/cloudius-systems/osv/arch/x64/arch.hh:49
cloudius-systems#2 osv::halt () at /home/asias/src/cloudius-systems/osv/core/power.cc:34
cloudius-systems#3 0x000000000022360f in abort (fmt=fmt@entry=0x603b60 "Assertion failed: %s (%s: %s: %d)\n") at /home/asias/src/cloudius-systems/osv/runtime.cc:150
cloudius-systems#4 0x0000000000223649 in __assert_fail (expr=<optimized out>, file=<optimized out>, line=<optimized out>, func=<optimized out>)
at /home/asias/src/cloudius-systems/osv/runtime.cc:156
cloudius-systems#5 0x000000000041743b in file::epoll_del (this=<optimized out>, ep=...) at /home/asias/src/cloudius-systems/osv/fs/vfs/kern_descrip.cc:249
cloudius-systems#6 0x00000000003f7683 in del (key=..., this=0xffff800001746040) at /home/asias/src/cloudius-systems/osv/core/epoll.cc:96
cloudius-systems#7 epoll_ctl (epfd=<optimized out>, op=<optimized out>, fd=<optimized out>, event=0x2000002f9d50) at /home/asias/src/cloudius-systems/osv/core/epoll.cc:283
cloudius-systems#8 0x0000100000c032dc in test_epolloneshot () at /home/asias/src/cloudius-systems/osv/tests/tst-epoll.cc:78
cloudius-systems#9 main (ac=<optimized out>, av=<optimized out>) at /home/asias/src/cloudius-systems/osv/tests/tst-epoll.cc:231
cloudius-systems#10 0x000000000040510b in osv::application::run_main (this=this@entry=0xffffa00001561f18, path="/tests/tst-epoll.so", argc=argc@entry=1,
argv=argv@entry=0xffffa00002994760) at /home/asias/src/cloudius-systems/osv/core/app.cc:182
cloudius-systems#11 0x0000000000405848 in osv::application::run_main (this=this@entry=0xffffa00001561f18) at /home/asias/src/cloudius-systems/osv/core/app.cc:197
cloudius-systems#12 0x000000000020bbd2 in osv::application::main (this=0xffffa00001561f18) at /home/asias/src/cloudius-systems/osv/core/app.cc:144
cloudius-systems#13 0x0000000000406699 in operator() (__closure=0x0, app=<optimized out>) at /home/asias/src/cloudius-systems/osv/core/app.cc:104
cloudius-systems#14 osv::application::__lambda3::_FUN (app=<optimized out>) at /home/asias/src/cloudius-systems/osv/core/app.cc:106
cloudius-systems#15 0x0000000000433746 in operator() (__closure=0xffffa00003320600) at /home/asias/src/cloudius-systems/osv/libc/pthread.cc:97
cloudius-systems#16 std::_Function_handler<void(), pthread_private::pthread::pthread(void* (*)(void*), void*, sigset_t, const pthread_private::thread_attr*)::__lambda7>::_M_invoke(const std::_Any_data &) (__functor=...) at /home/asias/src/cloudius-systems/osv/external/x64/gcc.bin/usr/include/c++/4.8.2/functional:2071
cloudius-systems#17 0x00000000003e38ab in main (this=0xffff80000354d050) at /home/asias/src/cloudius-systems/osv/core/sched.cc:940
cloudius-systems#18 sched::thread_main_c (t=0xffff80000354d050) at /home/asias/src/cloudius-systems/osv/arch/x64/arch-switch.hh:137
cloudius-systems#19 0x0000000000389c76 in thread_main () at /home/asias/src/cloudius-systems/osv/arch/x64/entry.S:113
asias
added a commit
to asias/osv
that referenced
this issue
Aug 28, 2014
The problem is that when epoll_wait removes the key from _file map, it
does not remove the key from _epoll map, so when epoll_ctrl(DEL) tries
to remove _file_map again, we hit the assert.
This fixes the following.
After:
Revert "Revert "epoll: fix up lock ordering issues""
I saw:
$ sudo scripts/run.py -c1 -nv -m4g -e "/tests/tst-epoll.so"
...
PASS: epoll_wait
PASS: write
PASS: epoll_wait
PASS: epoll_ctl MOD
PASS: epoll_wait
PASS: epoll_ctl ADD
PASS: errno == EEXIST
Assertion failed: i != f_epolls->end() (/home/asias/src/cloudius-systems/osv/fs/vfs/kern_descrip.cc: epoll_del: 249)
[backtrace]
0x0000000000223648 <__assert_fail+24>
0x000000000041743a <file::epoll_del(epoll_ptr)+186>
0x00000000003f7682 <epoll_ctl+786>
0x0000100000c032db <???+12595931>
0x000000000040510a <osv::application::run_main(std::string, int, char**)+266>
0x0000000000405847 <osv::application::run_main()+551>
0x000000000020bbd1 <osv::application::main()+97>
0x0000000000406698 <???+4220568>
0x0000000000433745 <???+4405061>
0x00000000003e38aa <thread_main_c+26>
0x0000000000389c75 <???+3710069>
(gdb) bt
#0 0x00000000003f8e92 in cli_hlt () at /home/asias/src/cloudius-systems/osv/arch/x64/processor.hh:242
cloudius-systems#1 halt_no_interrupts () at /home/asias/src/cloudius-systems/osv/arch/x64/arch.hh:49
cloudius-systems#2 osv::halt () at /home/asias/src/cloudius-systems/osv/core/power.cc:34
cloudius-systems#3 0x000000000022360f in abort (fmt=fmt@entry=0x603b60 "Assertion failed: %s (%s: %s: %d)\n") at /home/asias/src/cloudius-systems/osv/runtime.cc:150
cloudius-systems#4 0x0000000000223649 in __assert_fail (expr=<optimized out>, file=<optimized out>, line=<optimized out>, func=<optimized out>)
at /home/asias/src/cloudius-systems/osv/runtime.cc:156
cloudius-systems#5 0x000000000041743b in file::epoll_del (this=<optimized out>, ep=...) at /home/asias/src/cloudius-systems/osv/fs/vfs/kern_descrip.cc:249
cloudius-systems#6 0x00000000003f7683 in del (key=..., this=0xffff800001746040) at /home/asias/src/cloudius-systems/osv/core/epoll.cc:96
cloudius-systems#7 epoll_ctl (epfd=<optimized out>, op=<optimized out>, fd=<optimized out>, event=0x2000002f9d50) at /home/asias/src/cloudius-systems/osv/core/epoll.cc:283
cloudius-systems#8 0x0000100000c032dc in test_epolloneshot () at /home/asias/src/cloudius-systems/osv/tests/tst-epoll.cc:78
cloudius-systems#9 main (ac=<optimized out>, av=<optimized out>) at /home/asias/src/cloudius-systems/osv/tests/tst-epoll.cc:231
cloudius-systems#10 0x000000000040510b in osv::application::run_main (this=this@entry=0xffffa00001561f18, path="/tests/tst-epoll.so", argc=argc@entry=1,
argv=argv@entry=0xffffa00002994760) at /home/asias/src/cloudius-systems/osv/core/app.cc:182
cloudius-systems#11 0x0000000000405848 in osv::application::run_main (this=this@entry=0xffffa00001561f18) at /home/asias/src/cloudius-systems/osv/core/app.cc:197
cloudius-systems#12 0x000000000020bbd2 in osv::application::main (this=0xffffa00001561f18) at /home/asias/src/cloudius-systems/osv/core/app.cc:144
cloudius-systems#13 0x0000000000406699 in operator() (__closure=0x0, app=<optimized out>) at /home/asias/src/cloudius-systems/osv/core/app.cc:104
cloudius-systems#14 osv::application::__lambda3::_FUN (app=<optimized out>) at /home/asias/src/cloudius-systems/osv/core/app.cc:106
cloudius-systems#15 0x0000000000433746 in operator() (__closure=0xffffa00003320600) at /home/asias/src/cloudius-systems/osv/libc/pthread.cc:97
cloudius-systems#16 std::_Function_handler<void(), pthread_private::pthread::pthread(void* (*)(void*), void*, sigset_t, const pthread_private::thread_attr*)::__lambda7>::_M_invoke(const std::_Any_data &) (__functor=...) at /home/asias/src/cloudius-systems/osv/external/x64/gcc.bin/usr/include/c++/4.8.2/functional:2071
cloudius-systems#17 0x00000000003e38ab in main (this=0xffff80000354d050) at /home/asias/src/cloudius-systems/osv/core/sched.cc:940
cloudius-systems#18 sched::thread_main_c (t=0xffff80000354d050) at /home/asias/src/cloudius-systems/osv/arch/x64/arch-switch.hh:137
cloudius-systems#19 0x0000000000389c76 in thread_main () at /home/asias/src/cloudius-systems/osv/arch/x64/entry.S:113
Signed-off-by: Asias He <[email protected]>
avikivity
pushed a commit
that referenced
this issue
Aug 28, 2014
The problem is that when epoll_wait removes the key from _file map, it
does not remove the key from _epoll map, so when epoll_ctrl(DEL) tries
to remove _file_map again, we hit the assert.
This fixes the following.
After:
Revert "Revert "epoll: fix up lock ordering issues""
I saw:
$ sudo scripts/run.py -c1 -nv -m4g -e "/tests/tst-epoll.so"
...
PASS: epoll_wait
PASS: write
PASS: epoll_wait
PASS: epoll_ctl MOD
PASS: epoll_wait
PASS: epoll_ctl ADD
PASS: errno == EEXIST
Assertion failed: i != f_epolls->end() (/home/asias/src/cloudius-systems/osv/fs/vfs/kern_descrip.cc: epoll_del: 249)
[backtrace]
0x0000000000223648 <__assert_fail+24>
0x000000000041743a <file::epoll_del(epoll_ptr)+186>
0x00000000003f7682 <epoll_ctl+786>
0x0000100000c032db <???+12595931>
0x000000000040510a <osv::application::run_main(std::string, int, char**)+266>
0x0000000000405847 <osv::application::run_main()+551>
0x000000000020bbd1 <osv::application::main()+97>
0x0000000000406698 <???+4220568>
0x0000000000433745 <???+4405061>
0x00000000003e38aa <thread_main_c+26>
0x0000000000389c75 <???+3710069>
(gdb) bt
#0 0x00000000003f8e92 in cli_hlt () at /home/asias/src/cloudius-systems/osv/arch/x64/processor.hh:242
#1 halt_no_interrupts () at /home/asias/src/cloudius-systems/osv/arch/x64/arch.hh:49
#2 osv::halt () at /home/asias/src/cloudius-systems/osv/core/power.cc:34
#3 0x000000000022360f in abort (fmt=fmt@entry=0x603b60 "Assertion failed: %s (%s: %s: %d)\n") at /home/asias/src/cloudius-systems/osv/runtime.cc:150
#4 0x0000000000223649 in __assert_fail (expr=<optimized out>, file=<optimized out>, line=<optimized out>, func=<optimized out>)
at /home/asias/src/cloudius-systems/osv/runtime.cc:156
#5 0x000000000041743b in file::epoll_del (this=<optimized out>, ep=...) at /home/asias/src/cloudius-systems/osv/fs/vfs/kern_descrip.cc:249
#6 0x00000000003f7683 in del (key=..., this=0xffff800001746040) at /home/asias/src/cloudius-systems/osv/core/epoll.cc:96
#7 epoll_ctl (epfd=<optimized out>, op=<optimized out>, fd=<optimized out>, event=0x2000002f9d50) at /home/asias/src/cloudius-systems/osv/core/epoll.cc:283
#8 0x0000100000c032dc in test_epolloneshot () at /home/asias/src/cloudius-systems/osv/tests/tst-epoll.cc:78
#9 main (ac=<optimized out>, av=<optimized out>) at /home/asias/src/cloudius-systems/osv/tests/tst-epoll.cc:231
#10 0x000000000040510b in osv::application::run_main (this=this@entry=0xffffa00001561f18, path="/tests/tst-epoll.so", argc=argc@entry=1,
argv=argv@entry=0xffffa00002994760) at /home/asias/src/cloudius-systems/osv/core/app.cc:182
#11 0x0000000000405848 in osv::application::run_main (this=this@entry=0xffffa00001561f18) at /home/asias/src/cloudius-systems/osv/core/app.cc:197
#12 0x000000000020bbd2 in osv::application::main (this=0xffffa00001561f18) at /home/asias/src/cloudius-systems/osv/core/app.cc:144
#13 0x0000000000406699 in operator() (__closure=0x0, app=<optimized out>) at /home/asias/src/cloudius-systems/osv/core/app.cc:104
#14 osv::application::__lambda3::_FUN (app=<optimized out>) at /home/asias/src/cloudius-systems/osv/core/app.cc:106
#15 0x0000000000433746 in operator() (__closure=0xffffa00003320600) at /home/asias/src/cloudius-systems/osv/libc/pthread.cc:97
#16 std::_Function_handler<void(), pthread_private::pthread::pthread(void* (*)(void*), void*, sigset_t, const pthread_private::thread_attr*)::__lambda7>::_M_invoke(const std::_Any_data &) (__functor=...) at /home/asias/src/cloudius-systems/osv/external/x64/gcc.bin/usr/include/c++/4.8.2/functional:2071
#17 0x00000000003e38ab in main (this=0xffff80000354d050) at /home/asias/src/cloudius-systems/osv/core/sched.cc:940
#18 sched::thread_main_c (t=0xffff80000354d050) at /home/asias/src/cloudius-systems/osv/arch/x64/arch-switch.hh:137
#19 0x0000000000389c76 in thread_main () at /home/asias/src/cloudius-systems/osv/arch/x64/entry.S:113
Signed-off-by: Asias He <[email protected]>
Signed-off-by: Avi Kivity <[email protected]>
nyh
pushed a commit
that referenced
this issue
May 11, 2022
The manifest skeleton files like usr.manifest.skel have an entry for libgcc_s_dir looking like this: /usr/lib/libgcc_s.so.1: %(libgcc_s_dir)s/libgcc_s.so.1 This actually gets expanded quite late during the build process by upload_manifest.py. The unfortunate consequence of this is that loader.py used during debugging which reads usr.manifest does not have any logic to load libgcc_s.so.1. And this makes stack traces look useless in those cases that involve libgcc_s.so.1. So this patch slightly changes the scripts/build and scripts/module.py to expand %(libgcc_s_dir) when writing to build/release/usr.manifest. As a result of this the stack trace of the crash I have been working on looks much more reasonable: (gdb) bt '#0 0x00000000403047c2 in processor::cli_hlt () at arch/x64/processor.hh:247 #1 arch::halt_no_interrupts () at arch/x64/arch.hh:48 #2 osv::halt () at arch/x64/power.cc:29 #3 0x0000000040239504 in abort (fmt=fmt@entry=0x405b1e93 "Aborted\n") at runtime.cc:142 #4 0x0000000040202e80 in abort () at runtime.cc:106 #5 0x000010000002b6b6 in ?? () #6 0x000010000003f5cb in _Unwind_Resume () #7 0x0000100000062daa in ?? () #8 0x0000100000075b5c in boost::execution_monitor::vexecute(boost::function<void ()> const&) () #9 0x000010000007f0a9 in boost::unit_test::framework::init(bool (*)(), int, char**) () #10 0x000010000009254d in boost::unit_test::unit_test_main(bool (*)(), int, char**) () #11 0x000000004039d021 in osv::application::run_main (this=0xffffa00000bd8c10) at core/app.cc:416 #12 0x000000004039d22d in operator() (app=<optimized out>, __closure=0x0) at core/app.cc:236 #13 _FUN () at core/app.cc:238 #14 0x00000000403d089a in operator() (__closure=0xffffa00000d57800) at libc/pthread.cc:116 #15 std::__invoke_impl<void, pthread_private::pthread::pthread(void* (*)(void*), void*, sigset_t, const pthread_private::thread_attr*)::<lambda()>&> (__f=...) at /usr/include/c++/11/bits/invoke.h:61 #16 std::__invoke_r<void, pthread_private::pthread::pthread(void* (*)(void*), void*, sigset_t, const pthread_private::thread_attr*)::<lambda()>&> (__fn=...) at /usr/include/c++/11/bits/invoke.h:154 #17 std::_Function_handler<void(), pthread_private::pthread::pthread(void* (*)(void*), void*, sigset_t, const pthread_private::thread_attr*)::<lambda()> >::_M_invoke(const std::_Any_data &) (__functor=...) at /usr/include/c++/11/bits/std_function.h:290 #18 0x000000004036b5ae in sched::thread::main (this=0xffff800000f6a040) at core/sched.cc:1267 #19 sched::thread_main_c (t=0xffff800000f6a040) at arch/x64/arch-switch.hh:325 #20 0x00000000402fda43 in thread_main () at arch/x64/entry.S:116 Signed-off-by: Waldemar Kozaczuk <[email protected]> Message-Id: <[email protected]>
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Needed by netperf, should't be hard
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