From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:42232) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UKK0E-0006qU-Jw for qemu-devel@nongnu.org; Mon, 25 Mar 2013 22:52:51 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UKK09-0006Xf-AF for qemu-devel@nongnu.org; Mon, 25 Mar 2013 22:52:46 -0400 Received: from e28smtp07.in.ibm.com ([122.248.162.7]:43685) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UKK08-0006XG-Hl for qemu-devel@nongnu.org; Mon, 25 Mar 2013 22:52:41 -0400 Received: from /spool/local by e28smtp07.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 26 Mar 2013 08:18:37 +0530 Received: from d28relay01.in.ibm.com (d28relay01.in.ibm.com [9.184.220.58]) by d28dlp01.in.ibm.com (Postfix) with ESMTP id 85EBCE002D for ; Tue, 26 Mar 2013 08:24:06 +0530 (IST) Received: from d28av04.in.ibm.com (d28av04.in.ibm.com [9.184.220.66]) by d28relay01.in.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r2Q2qRV858196158 for ; Tue, 26 Mar 2013 08:22:28 +0530 Received: from d28av04.in.ibm.com (loopback [127.0.0.1]) by d28av04.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id r2Q2qW5K010355 for ; Tue, 26 Mar 2013 13:52:32 +1100 Received: from [127.0.0.1] (wenchaox.cn.ibm.com [9.115.122.244]) by d28av04.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVin) with ESMTP id r2Q2oJgs002392 for ; Tue, 26 Mar 2013 13:52:24 +1100 Message-ID: <51510CE8.7090208@linux.vnet.ibm.com> Date: Tue, 26 Mar 2013 10:50:16 +0800 From: Wenchao Xia MIME-Version: 1.0 Content-Type: text/plain; charset=GB2312 Content-Transfer-Encoding: 7bit Subject: [Qemu-devel] coroutine: hung when using gthread backend List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel When I using tcg with coroutine backend = gthread, x86_64-softmmu/qemu-system-x86_64 will hung. Any one working on it? System: RH6.3 gdb: Reading symbols from /home/xiawenc/Workdir/Src/qemu/build/master/x86_64-softmmu/qemu-system-x86_64...done. (gdb) r Starting program: /home/xiawenc/Workdir/Src/qemu/build/master/x86_64-softmmu/qemu-system-x86_64 [Thread debugging using libthread_db enabled] [New Thread 0x7fffecd5c700 (LWP 971)] [New Thread 0x7fffe415a700 (LWP 972)] [New Thread 0x7fffe3759700 (LWP 973)] [Thread 0x7fffe415a700 (LWP 972) exited] [Thread 0x7fffe3759700 (LWP 973) exited] ^C Program received signal SIGINT, Interrupt. 0x00007ffff60f843c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 Missing separate debuginfos, use: debuginfo-install SDL-1.2.14-3.el6.x86_64 cyrus-sasl-lib-2.1.23-13.el6.x86_64 glib2-2.22.5-7.el6.x86_64 glibc-2.12-1.80.el6.x86_64 gnutls-2.8.5-4.el6_2.2.x86_64 keyutils-libs-1.4-4.el6.x86_64 krb5-libs-1.9-33.el6.x86_64 libX11-1.3-2.el6.x86_64 libXau-1.0.5-1.el6.x86_64 libcom_err-1.41.12-12.el6.x86_64 libcurl-7.19.7-26.el6_2.4.x86_64 libgcrypt-1.4.5-9.el6_2.2.x86_64 libgpg-error-1.7-4.el6.x86_64 libidn-1.18-2.el6.x86_64 libjpeg-6b-46.el6.x86_64 libpng-1.2.49-1.el6_2.x86_64 libselinux-2.0.94-5.3.el6.x86_64 libssh2-1.2.2-7.el6_2.3.x86_64 libtasn1-2.3-3.el6_2.1.x86_64 libuuid-2.17.2-12.7.el6.x86_64 libxcb-1.5-1.el6.x86_64 ncurses-libs-5.7-3.20090208.el6.x86_64 nspr-4.9-1.el6.x86_64 nss-3.13.3-6.el6.x86_64 nss-softokn-freebl-3.12.9-11.el6.x86_64 nss-util-3.13.3-2.el6.x86_64 openldap-2.4.23-26.el6.x86_64 openssl-1.0.0-20.el6_2.5.x86_64 pixman-0.18.4-1.el6_0.1.x86_64 zlib-1.2.3-27.el6.x86_64 (gdb) thread [Current thread is 1 (Thread 0x7ffff7bf7940 (LWP 965))] (gdb) info thread 2 Thread 0x7fffecd5c700 (LWP 971) 0x00007ffff60f843c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 * 1 Thread 0x7ffff7bf7940 (LWP 965) 0x00007ffff60f843c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 (gdb) bt #0 0x00007ffff60f843c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007ffff7ce73c8 in coroutine_wait_runnable_locked (co=0x7ffff8be4f30) at /home/xiawenc/Workdir/Src/qemu/qemu/coroutine-gthread.c:133 #2 0x00007ffff7ce74a8 in qemu_coroutine_switch (from_=0x7ffff8be4f30, to_= 0x7ffff8be7b30, action=COROUTINE_YIELD) at /home/xiawenc/Workdir/Src/qemu/qemu/coroutine-gthread.c:191 #3 0x00007ffff7ddc092 in coroutine_swap (from=, to= 0x7ffff8be7b30) at /home/xiawenc/Workdir/Src/qemu/qemu/qemu-coroutine.c:72 #4 0x00007ffff7cb8c05 in bdrv_rw_co (bs=0x7ffff8bcda60, sector_num=, buf=, nb_sectors=, is_write=) at /home/xiawenc/Workdir/Src/qemu/qemu/block.c:2171 #5 0x00007ffff7d615f7 in pflash_cfi01_init (dev=0x7ffff8bd0e60) at /home/xiawenc/Workdir/Src/qemu/qemu/hw/pflash_cfi01.c:583 #6 0x00007ffff7d66a76 in device_realize (dev=0x7ffff8bd0e60, err= 0x7fffffffd9a0) at /home/xiawenc/Workdir/Src/qemu/qemu/hw/qdev.c:175 #7 0x00007ffff7d671b7 in device_set_realized (obj=0x7ffff8bd0e60, value=true, err=0x7fffffffdaa0) at /home/xiawenc/Workdir/Src/qemu/qemu/hw/qdev.c:673 #8 0x00007ffff7de824e in property_set_bool (obj=0x7ffff8bd0e60, v=, opaque=0x7ffff8be4ae0, name=, errp=0x7fffffffdaa0) at /home/xiawenc/Workdir/Src/qemu/qemu/qom/object.c:1224 ---Type to continue, or q to quit--- #9 0x00007ffff7dea765 in object_property_set_qobject (obj=0x7ffff8bd0e60, value=, name=0x7ffff7f5ab27 "realized", errp= 0x7fffffffdaa0) at /home/xiawenc/Workdir/Src/qemu/qemu/qom/qom-qobject.c:24 #10 0x00007ffff7de8cbe in object_property_set_bool (obj=0x7ffff8bd0e60, value=, name=0x7ffff7f5ab27 "realized", errp= 0x7fffffffdaa0) at /home/xiawenc/Workdir/Src/qemu/qemu/qom/object.c:767 #11 0x00007ffff7d67efa in qdev_init (dev=0x7ffff8bd0e60) at /home/xiawenc/Workdir/Src/qemu/qemu/hw/qdev.c:161 #12 0x00007ffff7d67f91 in qdev_init_nofail (dev=0x7ffff8bd0e60) at /home/xiawenc/Workdir/Src/qemu/qemu/hw/qdev.c:261 #13 0x00007ffff7d60b6e in pflash_cfi01_register (base=4294836224, qdev=, name=0x7ffff7f78604 "system.flash", size=, bs=0x7ffff8bcda60, sector_len=4096, nb_blocs= 32, width=1, id0=0, id1=0, id2=0, id3=0, be=0) at /home/xiawenc/Workdir/Src/qemu/qemu/hw/pflash_cfi01.c:752 #14 0x00007ffff7e52154 in pc_system_flash_init (rom_memory=0x7ffff8be7250) at /home/xiawenc/Workdir/Src/qemu/qemu/hw/i386/../pc_sysfw.c:134 #15 pc_system_firmware_init (rom_memory=0x7ffff8be7250) at /home/xiawenc/Workdir/Src/qemu/qemu/hw/i386/../pc_sysfw.c:234 #16 0x00007ffff7e58b73 in pc_memory_init (system_memory=0x7ffff8badd50, kernel_filename=0x0, kernel_cmdline=0x7ffff7f87af2 "", initrd_filename= 0x0, below_4g_mem_size=134217728, above_4g_mem_size=0, rom_memory= 0x7ffff8be7250, ram_memory=0x7fffffffdcf0) ---Type to continue, or q to quit--- at /home/xiawenc/Workdir/Src/qemu/qemu/hw/i386/pc.c:948 #17 0x00007ffff7e590e7 in pc_init1 (system_memory=0x7ffff8badd50, system_io= 0x7ffff8baea20, ram_size=134217728, boot_device=0x7ffff7f5560b "cad", kernel_filename=0x0, kernel_cmdline=0x7ffff7f87af2 "", initrd_filename= 0x0, cpu_model=0x0, pci_enabled=1, kvmclock_enabled=1) at /home/xiawenc/Workdir/Src/qemu/qemu/hw/i386/pc_piix.c:115 #18 0x00007ffff7e59800 in pc_init_pci (args=) at /home/xiawenc/Workdir/Src/qemu/qemu/hw/i386/pc_piix.c:230 #19 0x00007ffff7e1e8db in main (argc=, argv=, envp=) at /home/xiawenc/Workdir/Src/qemu/qemu/vl.c:4306 (gdb) thread 2 [Switching to thread 2 (Thread 0x7fffecd5c700 (LWP 971))]#0 0x00007ffff60f843c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 (gdb) bt #0 0x00007ffff60f843c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007ffff7f2f739 in qemu_cond_wait (cond=, mutex=) at /home/xiawenc/Workdir/Src/qemu/qemu/util/qemu-thread-posix.c:116 #2 0x00007ffff7e2845c in qemu_tcg_cpu_thread_fn (arg=) at /home/xiawenc/Workdir/Src/qemu/qemu/cpus.c:834 #3 0x00007ffff60f4851 in start_thread () from /lib64/libpthread.so.0 #4 0x00007ffff3de567d in clone () from /lib64/libc.so.6 -- Best Regards Wenchao Xia