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([2600:1700:e321:62f0:329c:23ff:fee3:9d7c]) by smtp.gmail.com with ESMTPSA id i1-20020a9d6501000000b0060ae002cd3bsm4053518otl.55.2022.05.23.09.18.47 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 23 May 2022 09:18:49 -0700 (PDT) Message-ID: <0ecdb673-b9a8-40af-7dee-2ba7fe739e5f@roeck-us.net> Date: Mon, 23 May 2022 09:18:47 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.1 Content-Language: en-US To: Guo Ren Cc: Palmer Dabbelt , Arnd Bergmann , Greg Kroah-Hartman , Christoph Hellwig , linux-arch , Linux Kernel Mailing List , linux-riscv , linux-csky@vger.kernel.org, linux-s390 , sparclinux , linuxppc-dev , Parisc List , "open list:BROADCOM NVRAM DRIVER" , Linux ARM , the arch/x86 maintainers , =?UTF-8?Q?Heiko_St=c3=bcbner?= , Guo Ren References: <20220322144003.2357128-1-guoren@kernel.org> <20220322144003.2357128-21-guoren@kernel.org> <20220523054550.GA1511899@roeck-us.net> From: Guenter Roeck Subject: Re: [PATCH V9 20/20] riscv: compat: Add COMPAT Kbuild skeletal support In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220523_091854_535794_C7C99695 X-CRM114-Status: GOOD ( 19.35 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 5/23/22 08:18, Guo Ren wrote: > I tested Palmer's branch, it's okay: > 8810d7feee5a (HEAD -> for-next, palmer/for-next) riscv: Don't output a > bogus mmu-type on a no MMU kernel > > I also tested linux-next, it's okay: > > rv64_rootfs: > # uname -a > Linux buildroot 5.18.0-next-20220523 #7 SMP Mon May 23 11:15:17 EDT > 2022 riscv64 GNU/Linux > # That is is ok with one setup doesn't mean it is ok with all setups. It is not ok with my root file system (from https://github.com/groeck/linux-build-test/tree/master/rootfs/riscv64), with qemu v6.2. > # > # > # ls /lib > ld-uClibc-1.0.39.so libatomic.so.1 libgcc_s.so > ld-uClibc.so.0 libatomic.so.1.2.0 libgcc_s.so.1 > ld-uClibc.so.1 libc.so.0 libuClibc-1.0.39.so > libatomic.so libc.so.1 modules > My root file system uses musl. Guenter > rv32_rootfs: > buildroot login: root > # uname -a > Linux buildroot 5.18.0-next-20220523 #7 SMP Mon May 23 11:15:17 EDT > 2022 riscv64 GNU/Linux > # ls /lib > ld-linux-riscv32-ilp32d.so.1 libm.so.6 > libanl.so.1 libnss_dns.so.2 > libatomic.so libnss_files.so.2 > libatomic.so.1 libpthread.so.0 > libatomic.so.1.2.0 libresolv.so.2 > libc.so.6 librt.so.1 > libcrypt.so.1 libthread_db.so.1 > libdl.so.2 libutil.so.1 > libgcc_s.so modules > libgcc_s.so.1 > > Here is my qemu version: > commit 19f13a92cef8405052e0f73d5289f9e15474dad3 (HEAD -> > riscv-to-apply.next, alistair/riscv-to-apply.next) > Author: Tsukasa OI > Date: Sun May 15 11:56:11 2022 +0900 > > target/riscv: Move/refactor ISA extension checks > > We should separate "check" and "configure" steps as possible. > This commit separates both steps except vector/Zfinx-related checks. > > Signed-off-by: Tsukasa OI > Reviewed-by: Alistair Francis > Message-Id: > > Signed-off-by: Alistair Francis > > On Mon, May 23, 2022 at 1:45 PM Guenter Roeck wrote: >> >> On Tue, Mar 22, 2022 at 10:40:03PM +0800, guoren@kernel.org wrote: >>> From: Guo Ren >>> >>> Adds initial skeletal COMPAT Kbuild (Running 32bit U-mode on >>> 64bit S-mode) support. >>> - Setup kconfig & dummy functions for compiling. >>> - Implement compat_start_thread by the way. >>> >>> Signed-off-by: Guo Ren >>> Signed-off-by: Guo Ren >>> Reviewed-by: Arnd Bergmann >>> Tested-by: Heiko Stuebner >>> Cc: Palmer Dabbelt >> >> With this patch in linux-next, all my riscv64 emulations crash. >> >> [ 11.600082] Run /sbin/init as init process >> [ 11.628561] init[1]: unhandled signal 11 code 0x1 at 0x0000000000000000 in libc.so[ffffff8ad39000+a4000] >> [ 11.629398] CPU: 0 PID: 1 Comm: init Not tainted 5.18.0-rc7-next-20220520 #1 >> [ 11.629462] Hardware name: riscv-virtio,qemu (DT) >> [ 11.629546] epc : 00ffffff8ada1100 ra : 00ffffff8ada13c8 sp : 00ffffffc58199f0 >> [ 11.629586] gp : 00ffffff8ad39000 tp : 00ffffff8ade0998 t0 : ffffffffffffffff >> [ 11.629598] t1 : 00ffffffc5819fd0 t2 : 0000000000000000 s0 : 00ffffff8ade0cc0 >> [ 11.629610] s1 : 00ffffff8ade0cc0 a0 : 0000000000000000 a1 : 00ffffffc5819a00 >> [ 11.629622] a2 : 0000000000000001 a3 : 000000000000001e a4 : 00ffffffc5819b00 >> [ 11.629634] a5 : 00ffffffc5819b00 a6 : 0000000000000000 a7 : 0000000000000000 >> [ 11.629645] s2 : 00ffffff8ade0ac8 s3 : 00ffffff8ade0ec8 s4 : 00ffffff8ade0728 >> [ 11.629656] s5 : 00ffffff8ade0a90 s6 : 0000000000000000 s7 : 00ffffffc5819e40 >> [ 11.629667] s8 : 00ffffff8ade0ca0 s9 : 00ffffff8addba50 s10: 0000000000000000 >> [ 11.629678] s11: 0000000000000000 t3 : 0000000000000002 t4 : 0000000000000001 >> [ 11.629688] t5 : 0000000000020000 t6 : ffffffffffffffff >> [ 11.629699] status: 0000000000004020 badaddr: 0000000000000000 cause: 000000000000000d >> [ 11.633421] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b >> [ 11.633664] CPU: 0 PID: 1 Comm: init Not tainted 5.18.0-rc7-next-20220520 #1 >> [ 11.633784] Hardware name: riscv-virtio,qemu (DT) >> [ 11.633881] Call Trace: >> [ 11.633960] [] dump_backtrace+0x1c/0x24 >> [ 11.634162] [] show_stack+0x2c/0x38 >> [ 11.634274] [] dump_stack_lvl+0x60/0x8e >> [ 11.634386] [] dump_stack+0x14/0x1c >> [ 11.634491] [] panic+0x116/0x2e2 >> [ 11.634596] [] do_exit+0x7ce/0x7d4 >> [ 11.634707] [] do_group_exit+0x24/0x7c >> [ 11.634817] [] get_signal+0x7ee/0x830 >> [ 11.634924] [] do_notify_resume+0x6c/0x41c >> [ 11.635037] [] ret_from_exception+0x0/0x10 >> >> Guenter >> >> --- >> # bad: [18ecd30af1a8402c162cca1bd58771c0e5be7815] Add linux-next specific files for 20220520 >> # good: [42226c989789d8da4af1de0c31070c96726d990c] Linux 5.18-rc7 >> git bisect start 'HEAD' 'v5.18-rc7' >> # bad: [f9b63740b666dd9887eb0282d21b5f65bb0cadd0] Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git >> git bisect bad f9b63740b666dd9887eb0282d21b5f65bb0cadd0 >> # bad: [7db97132097c5973ff77466d0ee681650af653de] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux >> git bisect bad 7db97132097c5973ff77466d0ee681650af653de >> # good: [2b7d17d4b7c1ff40f58b0d32be40fc0bb6c582fb] soc: document merges >> git bisect good 2b7d17d4b7c1ff40f58b0d32be40fc0bb6c582fb >> # good: [69c9668f853fdd409bb8abbb37d615785510b29a] Merge branch 'clk-next' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git >> git bisect good 69c9668f853fdd409bb8abbb37d615785510b29a >> # bad: [1577f290aa0d4c5b29c03c46ef52e4952a21bfbb] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git >> git bisect bad 1577f290aa0d4c5b29c03c46ef52e4952a21bfbb >> # good: [34f0971f8ca73d7e5502b4cf299788a9402120f7] powerpc/powernv/flash: Check OPAL flash calls exist before using >> git bisect good 34f0971f8ca73d7e5502b4cf299788a9402120f7 >> # good: [0349d7dfc70a26b3facd8ca97de34980d4b60954] Merge branch 'mips-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux.git >> git bisect good 0349d7dfc70a26b3facd8ca97de34980d4b60954 >> # bad: [20bfb54d3b121699674c17a854c5ebc7a8f97d81] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git >> git bisect bad 20bfb54d3b121699674c17a854c5ebc7a8f97d81 >> # bad: [9be8459298eadb39b9fe9974b890239e9c123107] riscv: compat: Add COMPAT Kbuild skeletal support >> git bisect bad 9be8459298eadb39b9fe9974b890239e9c123107 >> # good: [01abdfeac81b5f56062d0a78f2cdc805db937a75] riscv: compat: Support TASK_SIZE for compat mode >> git bisect good 01abdfeac81b5f56062d0a78f2cdc805db937a75 >> # good: [f4b395e6f1a588ed6c9a30474e58cf6b27b65783] riscv: compat: Add hw capability check for elf >> git bisect good f4b395e6f1a588ed6c9a30474e58cf6b27b65783 >> # good: [3092eb45637573c5e435fbf5eaf9516316e5f9c6] riscv: compat: vdso: Add setup additional pages implementation >> git bisect good 3092eb45637573c5e435fbf5eaf9516316e5f9c6 >> # good: [4608c159594fb40a5101357d4f614fdde9ce1fdb] riscv: compat: ptrace: Add compat_arch_ptrace implement >> git bisect good 4608c159594fb40a5101357d4f614fdde9ce1fdb >> # first bad commit: [9be8459298eadb39b9fe9974b890239e9c123107] riscv: compat: Add COMPAT Kbuild skeletal support > > > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel