From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38484) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YxX3S-0003y7-4o for qemu-devel@nongnu.org; Wed, 27 May 2015 04:51:15 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YxX3O-0000fu-Iy for qemu-devel@nongnu.org; Wed, 27 May 2015 04:51:14 -0400 Received: from static.88-198-71-155.clients.your-server.de ([88.198.71.155]:48143 helo=socrates.bennee.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YxX3O-0000fb-B8 for qemu-devel@nongnu.org; Wed, 27 May 2015 04:51:10 -0400 References: <1430926687-25875-1-git-send-email-a.rigo@virtualopensystems.com> <20150508182947.GA9290@flamenco> <20150526215151.GA23928@flamenco> From: Alex =?utf-8?Q?Benn=C3=A9e?= In-reply-to: Date: Wed, 27 May 2015 09:51:15 +0100 Message-ID: <87twuypfng.fsf@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Subject: Re: [Qemu-devel] [RFC 0/5] Slow-path for atomic instruction translation List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: alvise rigo Cc: mttcg@listserver.greensocs.com, Claudio Fontana , QEMU Developers , "Emilio G. Cota" , Jani Kokkonen , VirtualOpenSystems Technical Team alvise rigo writes: > I'm going to respin these patches soon, I've found some issues that > I'm addressing now. Thanks, please feel free to add me to your CC list. > > Thank you for your feedback, > alvise > > On Tue, May 26, 2015 at 11:51 PM, Emilio G. Cota wrote: >> On Mon, May 11, 2015 at 11:10:05 +0200, alvise rigo wrote: >>> the last commit was b8df9208f357d2b36e1b19634aea973618dc7ba8. >> >> Thanks. >> >> Unfortunately a segfault still happens very early: >> >> $ gdb arm-softmmu/qemu-system-arm >> GNU gdb (Ubuntu/Linaro 7.4-2012.04-0ubuntu2.1) 7.4-2012.04 >> Copyright (C) 2012 Free Software Foundation, Inc. >> License GPLv3+: GNU GPL version 3 or later >> This is free software: you are free to change and redistribute it. >> There is NO WARRANTY, to the extent permitted by law. Type "show copying" >> and "show warranty" for details. >> This GDB was configured as "x86_64-linux-gnu". >> For bug reporting instructions, please see: >> ... >> Reading symbols from /local/home/cota/src/qemu/arm-softmmu/qemu-system-arm...done. >> (gdb) set args -M vexpress-a9 -kernel img/arm/zImage -drive file=img/arm/rootfs.ext2,if=sd -append "console=ttyAMA0,115200 root=/dev/mmcblk0" -net nic,model=lan9118 -net user -nographic -smp 1 >> (gdb) r >> Starting program: /local/home/cota/src/qemu/arm-softmmu/qemu-system-arm -M vexpress-a9 -kernel img/arm/zImage -drive file=img/arm/rootfs.ext2,if=sd -append "console=ttyAMA0,115200 root=/dev/mmcblk0" -net nic,model=lan9118 -net user -nographic -smp 1 >> [Thread debugging using libthread_db enabled] >> Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". >> [New Thread 0x7fffe9447700 (LWP 4309)] >> [New Thread 0x7fffe5246700 (LWP 4310)] >> WARNING: Image format was not specified for 'img/arm/rootfs.ext2' and probing guessed raw. >> Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted. >> Specify the 'raw' format explicitly to remove the restrictions. >> [New Thread 0x7fffe4a45700 (LWP 4311)] >> audio: Could not init `oss' audio driver >> >> Program received signal SIGUSR1, User defined signal 1. >> [Switching to Thread 0x7fffe4a45700 (LWP 4311)] >> pthread_cond_wait@@GLIBC_2.3.2 () >> at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162 >> 162 ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S: No such file or directory. >> (gdb) cont >> Continuing. >> >> Program received signal SIGSEGV, Segmentation fault. >> 0x0000555555655c34 in test_bit (addr=, nr=) >> at /local/home/cota/src/qemu/include/qemu/bitops.h:119 >> 119 return 1UL & (addr[BIT_WORD(nr)] >> (nr & (BITS_PER_LONG-1))); >> (gdb) bt >> #0 0x0000555555655c34 in test_bit (addr=, nr=) >> at /local/home/cota/src/qemu/include/qemu/bitops.h:119 >> #1 cpu_physical_memory_excl_is_dirty (addr=18446744073709551615) >> at /local/home/cota/src/qemu/include/exec/ram_addr.h:214 >> #2 tlb_set_page (cpu=, vaddr=, paddr=503316480, >> prot=, mmu_idx=3, size=) >> at /local/home/cota/src/qemu/cputlb.c:327 >> #3 0x0000555555712091 in arm_cpu_handle_mmu_fault (cs=0x55555632c4e0, >> address=, access_type=0, mmu_idx=3) >> at /local/home/cota/src/qemu/target-arm/helper.c:5726 >> #4 0x0000555555704f70 in tlb_fill (cs=0x55555632c4e0, addr=, >> is_write=, mmu_idx=, retaddr=140737065132893) >> at /local/home/cota/src/qemu/target-arm/op_helper.c:69 >> #5 0x000055555565733f in helper_le_ldul_mmu (env=0x555556334730, >> addr=503316484, mmu_idx=3, retaddr=) >> at /local/home/cota/src/qemu/softmmu_template.h:190 >> #6 0x00007fffe6c623db in code_gen_buffer () >> #7 0x00005555556148ba in cpu_tb_exec ( >> tb_ptr=0x7fffe6c62320 "A\213n\374\205\355\017\205\207", cpu=0x55555632c4e0) >> at /local/home/cota/src/qemu/cpu-exec.c:199 >> #8 cpu_arm_exec (env=0x555556334730) >> at /local/home/cota/src/qemu/cpu-exec.c:519 >> #9 0x000055555563a880 in tcg_cpu_exec (env=0x555556334730) >> at /local/home/cota/src/qemu/cpus.c:1354 >> #10 tcg_exec_all () at /local/home/cota/src/qemu/cpus.c:1387 >> #11 qemu_tcg_cpu_thread_fn (arg=) >> at /local/home/cota/src/qemu/cpus.c:1032 >> #12 0x00007ffff40dfe9a in start_thread (arg=0x7fffe4a45700) >> at pthread_create.c:308 >> #13 0x00007ffff3e0d38d in clone () >> at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 >> #14 0x0000000000000000 in ?? () >> >> Emilio -- Alex Bennée