Thanks Vlastimil! I agree with you..it's a good new behavior to report that case, I guess. Cheers,
Guilherme On Tue, Jun 16, 2020 at 5:02 AM Vlastimil Babka <[email protected]> wrote: > > On 6/16/20 9:38 AM, kernel test robot wrote: > > Greeting, > > > > FYI, we noticed the following commit (built with gcc-9): > > > > commit: f117955a2255721a6a0e9cecf6cad3a6eb43cbc3 ("kernel/watchdog.c: > > convert {soft/hard}lockup boot parameters to sysctl aliases") > > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master > > > > in testcase: boot > > > > on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m > > 16G > > > > caused below changes (please refer to attached dmesg/kmsg for entire > > log/backtrace): > > > > > > > > If you fix the issue, kindly add following tag > > Reported-by: kernel test robot <[email protected]> > > > > > > > > [ 5.306502] netconsole: network logging started > > [ 5.793973] input: ImExPS/2 Generic Explorer Mouse as > > /devices/platform/i8042/serio1/input/input3 > > [ 5.804702] e1000: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow > > Control: RX > > [ 5.828198] Sending DHCP requests ., OK > > [ 5.829815] IP-Config: Got DHCP answer from 10.0.2.2, my address is > > 10.0.2.15 > > [ 5.831412] IP-Config: Complete: > > [ 5.832501] device=eth0, hwaddr=52:54:00:12:34:56, > > ipaddr=10.0.2.15, mask=255.255.255.0, gw=10.0.2.2 > > [ 5.835246] host=vm-snb-ssd-19, domain=, nis-domain=(none) > > [ 5.836806] bootserver=10.0.2.2, rootserver=10.0.2.2, rootpath= > > [ 5.836808] nameserver0=10.0.2.3 > > [ 5.839613] ALSA device list: > > [ 5.857103] No soundcards found. > > [ 5.860706] Freeing unused kernel image (initmem) memory: 1540K > > [ 5.868210] Write protecting the kernel read-only data: 20480k > > [ 5.870913] Freeing unused kernel image (text/rodata gap) memory: 2044K > > [ 5.872636] Freeing unused kernel image (rodata/data gap) memory: 68K > > [ 5.874149] rodata_test: all tests were successful > > [ 5.875553] Failed to set sysctl parameter 'kernel.softlockup_panic=1': > > parameter not found > > In case the line above is the reason for this report, then it's because > .config has: > > # CONFIG_SOFTLOCKUP_DETECTOR is not set > > While previously the softlockup_panic=1 parameter would be just silently > ignored > in that case. I don't think it's wrong to report it, though. > > > [ 5.896259] Run /init as init process > > [ 5.897454] with arguments: > > [ 5.898493] /init > > [ 5.899418] with environment: > > [ 5.900468] HOME=/ > > [ 5.901346] TERM=linux > > [ 5.902311] user=lkp > > [ 5.903266] > > job=/lkp/jobs/scheduled/vm-snb-ssd-19/boot-1-debian-i386-20191205.cgz-f117955a2255721a6a0e9cecf6cad3a6eb43cbc3-20200615-43661-1fqppwn-3.yaml > > [ 5.906363] ARCH=x86_64 > > [ 5.907358] kconfig=x86_64-kexec > > [ 5.908495] branch=linus/master > > [ 5.909564] commit=f117955a2255721a6a0e9cecf6cad3a6eb43cbc3 > > [ 5.910982] > > BOOT_IMAGE=/pkg/linux/x86_64-kexec/gcc-9/f117955a2255721a6a0e9cecf6cad3a6eb43cbc3/vmlinuz-5.7.0-12506-gf117955a22557 > > [ 5.913735] max_uptime=600 > > [ 5.914651] > > RESULT_ROOT=/result/boot/1/vm-snb-ssd/debian-i386-20191205.cgz/x86_64-kexec/gcc-9/f117955a2255721a6a0e9cecf6cad3a6eb43cbc3/3 > > [ 5.917437] LKP_SERVER=inn > > [ 5.918425] selinux=0 > > [ 5.919398] softlockup_panic=1 > > [ 5.920495] nmi_watchdog=panic > > [ 5.925722] prompt_ramdisk=0 > > [ 5.926843] vga=normal > > [ 5.927739] watchdog_thresh=60 > > [ 5.934222] systemd[1]: RTC configured in localtime, applying delta of 0 > > minutes to system time. > > [ 5.937449] systemd[1]: Failed to insert module 'autofs4': No such file > > or directory > > [ 5.941850] random: systemd: uninitialized urandom read (16 bytes read) > > [ 5.947176] random: systemd: uninitialized urandom read (16 bytes read) > > > > > > To reproduce: > > > > # build kernel > > cd linux > > cp config-5.7.0-12506-gf117955a22557 .config > > make HOSTCC=gcc-9 CC=gcc-9 ARCH=x86_64 olddefconfig prepare > > modules_prepare bzImage > > > > git clone https://github.com/intel/lkp-tests.git > > cd lkp-tests > > bin/lkp qemu -k <bzImage> job-script # job-script is attached in > > this email > > > > > > > > Thanks, > > Rong Chen > > >
