Hi Jeremy, On 9/13/2021 11:52 AM, Jeremy Kerr wrote: Sorry, this is because latest trinity package is not uploaded to website yet. Please kindly edit the job-script and change trinity package to 20210905 at 'export bm_initrd=...' line. We can successfully run the test following reproduce steps in the mail, seems no extra steps are needed on the host. Below is a brief log: Starting Permit User Sessions... Starting OpenBSD Secure Shell server... Starting /etc/rc.local Compatibility... Starting LKP bootstrap... [FAILED] Failed to start LSB: OpenIPMI Driver init script. <--- this fail doesn't matter See 'systemctl status openipmi.service' for details. [ OK ] Started Permit User Sessions. [ 216.378128] rc.local[726]: PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/lkp/root/src/bin [ OK ] Started /etc/rc.local Compatibility. [ OK ] Started Getty on tty1. [ OK ] Reached target Login Prompts. [ 216.422868] rc.local[726]: export VM_VIRTFS=1 due to result service 9p/virtfs_mount LKP: HOSTNAME vm-snb-237, MAC 42:55:24:2a:81:15, kernel 5.14.0-rc2-00609-g831119f88781 1, serial console /dev/ttyS0 [ 216.760299][ T738] _warn_unseeded_randomness: 603 callbacks suppressed [ 216.760307][ T738] random: get_random_u64 called from dup_task_struct+0x1b3/0x540 with crng_init=1 [ 216.850417][ T765] random: get_random_u64 called from arch_rnd+0x3c/0x80 with crng_init=1 [ 216.850440][ T765] random: get_random_u64 called from randomize_stack_top+0x5c/0xc0 with crng_init=1 [ 217.774439][ T738] _warn_unseeded_randomness: 155 callbacks suppressed [ 217.774448][ T738] random: get_random_u64 called from dup_task_struct+0x1b3/0x540 with crng_init=1 [ 217.780597][ T794] random: get_random_u64 called from arch_rnd+0x3c/0x80 with crng_init=1 [ 217.780620][ T794] random: get_random_u64 called from randomize_stack_top+0x5c/0xc0 with crng_init=1 [ 218.776862][ T820] _warn_unseeded_randomness: 180 callbacks suppressed [ 218.776870][ T820] random: get_random_u64 called from arch_rnd+0x3c/0x80 with crng_init=1 [ 218.776887][ T820] random: get_random_u64 called from randomize_stack_top+0x5c/0xc0 with crng_init=1 [ 218.776943][ T820] random: get_random_u64 called from arch_rnd+0x3c/0x80 with crng_init=1 [ 219.083660][ C0] random: crng init done [ 219.089610][ C0] random: 49 get_random_xx warning(s) missed due to ratelimiting [ 219.095610][ C0] random: 7 urandom warning(s) missed due to ratelimiting [ 219.186829][ T725] [ 219.191898][ T725] ============================= [ 219.197231][ T725] WARNING: suspicious RCU usage [ 219.202465][ T725] 5.14.0-rc2-00609-g831119f88781 #1 Not tainted [ 219.207757][ T725] ----------------------------- [ 219.213151][ T725] security/smack/smack_lsm.c:2358 RCU-list traversed in non-reader section!! [ 219.218681][ T725] [ 219.218681][ T725] other info that might help us debug this: [ 219.218681][ T725] [ 219.233431][ T725] [ 219.233431][ T725] rcu_scheduler_active = 2, debug_locks = 1 [ 219.243147][ T725] no locks held by sshd/725. [ 219.248059][ T725] [ 219.248059][ T725] stack backtrace: [ 219.257521][ T725] CPU: 0 PID: 725 Comm: sshd Not tainted 5.14.0-rc2-00609-g831119f88781 #1 d8798897a8ecdebd81bae013182e40e47651cdde [ 219.267715][ T725] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014 [ 219.273243][ T725] Call Trace: [ 219.278254][ T725] dump_stack_lvl+0xf9/0x169 [ 219.283277][ T725] smack_ipv6host_label+0x1ae/0x1c0 [ 219.288302][ T725] smack_socket_connect+0xf4/0x140 [ 219.293293][ T725] security_socket_connect+0x3c/0x80 [ 219.298186][ T725] __sys_connect_file+0x67/0xc0 [ 219.303009][ T725] __sys_connect+0xd2/0x100 [ 219.307700][ T725] ? tracer_hardirqs_on+0x33/0x340 [ 219.312414][ T725] ? syscall_enter_from_user_mode+0x83/0x100 [ 219.317184][ T725] ? syscall_enter_from_user_mode+0x8a/0x100 [ 219.321807][ T725] ? lockdep_hardirqs_on+0x77/0x100 [ 219.326295][ T725] ? syscall_enter_from_user_mode+0x8a/0x100 [ 219.330916][ T725] __x64_sys_connect+0x1f/0x40 [ 219.336457][ T725] do_syscall_64+0x5d/0xc0 [ 219.341929][ T725] ? syscall_exit_to_user_mode+0x48/0x80 [ 219.347402][ T725] ? syscall_exit_to_user_mode+0x48/0x80 [ 219.351673][ T725] ? __sanitizer_cov_trace_pc+0x1d/0x80 [ 219.355889][ T725] ? trace_hardirqs_on_prepare+0x7b/0x3c0 [ 219.360151][ T725] ? lockdep_hardirqs_on+0x77/0x100 [ 219.364226][ T725] ? do_syscall_64+0x6b/0xc0 [ 219.368176][ T725] ? asm_exc_page_fault+0x8/0x30 [ 219.372115][ T725] ? __sanitizer_cov_trace_pc+0x1d/0x80 [ 219.376176][ T725] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 219.380198][ T725] RIP: 0033:0x7fc2f95f84d4 Here we give detailed reproduce steps for your reference: (Ubuntu 20.04 environment) # build kernel cd linux git checkout 831119f8878173adbf31f1151adf0f4627c05e01 cp <config-5.14.0-rc2-00609-g831119f88781> .config # config file is attached in this mail make HOSTCC=gcc-9 CC=gcc-9 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage ... Kernel: arch/x86/boot/bzImage is ready # run test sudo apt install qemu-system-x86 git clone https://github.com/intel/lkp-tests.git cd lkp-tests # job-script is attached in this mail, and we have modified the trinity package date. sudo ./bin/lkp qemu -o result -k <path/to/bzImage> job-script If come across any further issues of reproducing, please kindly drop us a mail. Regards, Yujie

Hi Jeremy, On 9/14/2021 5:03 PM, Jeremy Kerr wrote: Thanks for the response. we'll update our report to add some tips such as run as root and rm .lkp dir to run from a clean state. Hope this would make it smoother for developers to use our tool. Regards, Yujie > > That's getting trinity running now, but I see a bunch of different > locking issues (partial dmesg attached), within the x86 arch code, > rather than the MCTP mutex issue. Might be something to do with > running on an AMD system here, I suspect... > > Thanks for the pointers, I'll keep debugging here. > > Cheers, > > > Jeremy >