From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 454F45D46D for ; Thu, 1 Feb 2024 14:01:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.176.79.56 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706796067; cv=none; b=HXugkJamo2k+fiBFkS7da7oJLCloDy05PK1aXR71mFwNqnqrNQmSh5pDBeiQH9EfV4QQNBNCkAEj0plBe7MYjhpaWh3dq8nO/xSXmBwP16ImlYKDMpnJ3Kboy5I6Oirq9E25acnQSbM1vPY5Ud6OpPNpN78aOwYWlQ7k4baorW8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706796067; c=relaxed/simple; bh=CX6DKgDL7JtWc/rFwJrHtCet4QEfbCi5yI8RsQzFxkM=; h=Date:From:To:CC:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Y5OtsKfdtPUyLT6CCxmtm2bgQ3ZyAoYqjiPDMdj0kjq3at3MWBWLfWcdhMxI2Oojeq5XeLIX2UbNhzO/sKMdG0fkVKRgELJgu4dWGENV9xvYooEYCLu0azotrsTRkWY07w985yd7O5BiJCnRKSqSuDJRSh+3xK/ycg/qkBxafWE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=185.176.79.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.18.186.216]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4TQgTY3Cs8z6K8tP; Thu, 1 Feb 2024 21:57:53 +0800 (CST) Received: from lhrpeml500005.china.huawei.com (unknown [7.191.163.240]) by mail.maildlp.com (Postfix) with ESMTPS id 9343E140CB9; Thu, 1 Feb 2024 22:01:01 +0800 (CST) Received: from localhost (10.122.247.231) by lhrpeml500005.china.huawei.com (7.191.163.240) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Thu, 1 Feb 2024 14:01:01 +0000 Date: Thu, 1 Feb 2024 14:01:00 +0000 From: Jonathan Cameron To: Peter Maydell CC: Sajjan Rao , Gregory Price , Dimitrios Palyvos , , , Subject: Re: Crash with CXL + TCG on 8.2: Was Re: qemu cxl memory expander shows numa_node -1 Message-ID: <20240201140100.000016ce@huawei.com> In-Reply-To: References: <20230823175056.00001a84@Huawei.com> <20240126123926.000051bd@Huawei.com> <20240126171233.00002a2e@Huawei.com> <20240201130438.00001384@Huawei.com> Organization: Huawei Technologies R&D (UK) Ltd. X-Mailer: Claws Mail 4.0.0 (GTK+ 3.24.29; x86_64-w64-mingw32) Precedence: bulk X-Mailing-List: linux-cxl@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: lhrpeml100003.china.huawei.com (7.191.160.210) To lhrpeml500005.china.huawei.com (7.191.163.240) On Thu, 1 Feb 2024 13:12:23 +0000 Peter Maydell wrote: > On Thu, 1 Feb 2024 at 13:04, Jonathan Cameron via wrote: > > > > > > > > root@localhost:~/devmem2# numactl --membind=1 touch a > > qemu: fatal: cpu_io_recompile: could not find TB for pc=(nil) > > Can you run QEMU under gdb and give the backtrace when it stops > on the abort() ? That will probably have a helpful clue. I > suspect something is failing to pass a valid retaddr in > when it calls a load/store function. > > thanks > -- PMM [Switching to Thread 0x7ffff56ff6c0 (LWP 21916)] __pthread_kill_implementation (no_tid=0, signo=6, threadid=) at ./nptl/pthread_kill.c:44 44 ./nptl/pthread_kill.c: No such file or directory. (gdb) bt #0 __pthread_kill_implementation (no_tid=0, signo=6, threadid=) at ./nptl/pthread_kill.c:44 #1 __pthread_kill_internal (signo=6, threadid=) at ./nptl/pthread_kill.c:78 #2 __GI___pthread_kill (threadid=, signo=signo@entry=6) at ./nptl/pthread_kill.c:89 #3 0x00007ffff77c43b6 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26 #4 0x00007ffff77aa87c in __GI_abort () at ./stdlib/abort.c:79 #5 0x0000555555c0d4ce in cpu_abort (cpu=cpu@entry=0x555556fd9000, fmt=fmt@entry=0x555555fe3378 "cpu_io_recompile: could not find TB for pc=%p") at ../../cpu-target.c:359 #6 0x0000555555c59435 in cpu_io_recompile (cpu=cpu@entry=0x555556fd9000, retaddr=retaddr@entry=0) at ../../accel/tcg/translate-all.c:611 #7 0x0000555555c5c956 in io_prepare (retaddr=0, addr=19595792376, attrs=..., xlat=, cpu=0x555556fd9000, out_offset=) at ../../accel/tcg/cputlb.c:1339 #8 do_ld_mmio_beN (cpu=0x555556fd9000, full=0x7fffee0d96e0, ret_be=ret_be@entry=0, addr=19595792376, size=size@entry=8, mmu_idx=4, type=MMU_DATA_LOAD, ra=0) at ../../accel/tcg/cputlb.c:2030 #9 0x0000555555c5dfad in do_ld_8 (cpu=cpu@entry=0x555556fd9000, p=p@entry=0x7ffff56fddc0, mmu_idx=, type=type@entry=MMU_DATA_LOAD, memop=, ra=ra@entry=0) at ../../accel/tcg/cputlb.c:2356 #10 0x0000555555c6026f in do_ld8_mmu (cpu=cpu@entry=0x555556fd9000, addr=addr@entry=19595792376, oi=oi@entry=52, ra=ra@entry=0, access_type=access_type@entry=MMU_DATA_LOAD) at ../../accel/tcg/cputlb.c:2439 #11 0x0000555555c629f9 in cpu_ldq_mmu (ra=0, oi=52, addr=19595792376, env=0x555556fdb7c0) at ../../accel/tcg/ldst_common.c.inc:169 #12 cpu_ldq_le_mmuidx_ra (env=0x555556fdb7c0, addr=19595792376, mmu_idx=, ra=ra@entry=0) at ../../accel/tcg/ldst_common.c.inc:301 #13 0x0000555555b18ede in ptw_ldq (in=0x7ffff56fdf00) at ../../target/i386/tcg/sysemu/excp_helper.c:98 #14 ptw_ldq (in=0x7ffff56fdf00) at ../../target/i386/tcg/sysemu/excp_helper.c:93 #15 mmu_translate (env=env@entry=0x555556fdb7c0, in=in@entry=0x7ffff56fdfa0, out=out@entry=0x7ffff56fdf70, err=err@entry=0x7ffff56fdf80) at ../../target/i386/tcg/sysemu/excp_helper.c:173 #16 0x0000555555b19c95 in get_physical_address (err=0x7ffff56fdf80, out=0x7ffff56fdf70, mmu_idx=0, access_type=MMU_INST_FETCH, addr=18446744072116178925, env=0x555556fdb7c0) at ../../target/i386/tcg/sysemu/excp_helper.c:578 #17 x86_cpu_tlb_fill (cs=0x555556fd9000, addr=18446744072116178925, size=, access_type=MMU_INST_FETCH, mmu_idx=0, probe=, retaddr=0) at ../../target/i386/tcg/sysemu/excp_helper.c:604 #18 0x0000555555c5dd2b in probe_access_internal (cpu=, addr=18446744072116178925, fault_size=fault_size@entry=1, access_type=access_type@entry=MMU_INST_FETCH, mmu_idx=0, nonfault=nonfault@entry=false, phost=0x7ffff56fe0d0, pfull=0x7ffff56fe0c8, retaddr=0, check_mem_cbs=false) at ../../accel/tcg/cputlb.c:1432 #19 0x0000555555c61ff8 in get_page_addr_code_hostp (env=, addr=addr@entry=18446744072116178925, hostp=hostp@entry=0x0) at ../../accel/tcg/cputlb.c:1603 #20 0x0000555555c50a2b in get_page_addr_code (addr=18446744072116178925, env=) at /home/jic23/src/qemu/include/exec/exec-all.h:594 #21 tb_htable_lookup (cpu=, pc=pc@entry=18446744072116178925, cs_base=0, flags=415285936, cflags=4278353920) at ../../accel/tcg/cpu-exec.c:231 #22 0x0000555555c50c08 in tb_lookup (cpu=cpu@entry=0x555556fd9000, pc=pc@entry=18446744072116178925, cs_base=cs_base@entry=0, flags=, cflags=) at ../../accel/tcg/cpu-exec.c:267 #23 0x0000555555c51e23 in helper_lookup_tb_ptr (env=0x555556fdb7c0) at ../../accel/tcg/cpu-exec.c:423 #24 0x00007fffa9076ead in code_gen_buffer () #25 0x0000555555c50fab in cpu_tb_exec (cpu=cpu@entry=0x555556fd9000, itb=, tb_exit=tb_exit@entry=0x7ffff56fe708) at ../../accel/tcg/cpu-exec.c:458 #26 0x0000555555c51492 in cpu_loop_exec_tb (tb_exit=0x7ffff56fe708, last_tb=, pc=18446744072116179169, tb=, cpu=0x555556fd9000) at ../../accel/tcg/cpu-exec.c:920 #27 cpu_exec_loop (cpu=cpu@entry=0x555556fd9000, sc=sc@entry=0x7ffff56fe7a0) at ../../accel/tcg/cpu-exec.c:1041 #28 0x0000555555c51d11 in cpu_exec_setjmp (cpu=cpu@entry=0x555556fd9000, sc=sc@entry=0x7ffff56fe7a0) at ../../accel/tcg/cpu-exec.c:1058 #29 0x0000555555c523b4 in cpu_exec (cpu=cpu@entry=0x555556fd9000) at ../../accel/tcg/cpu-exec.c:1084 #30 0x0000555555c74053 in tcg_cpus_exec (cpu=cpu@entry=0x555556fd9000) at ../../accel/tcg/tcg-accel-ops.c:76 #31 0x0000555555c741a0 in mttcg_cpu_thread_fn (arg=arg@entry=0x555556fd9000) at ../../accel/tcg/tcg-accel-ops-mttcg.c:95 #32 0x0000555555dfb580 in qemu_thread_start (args=0x55555703c3e0) at ../../util/qemu-thread-posix.c:541 #33 0x00007ffff78176ba in start_thread (arg=) at ./nptl/pthread_create.c:444 #34 0x00007ffff78a60d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81