Messages in this thread | | | Date | Wed, 15 Dec 2021 15:00:13 +0800 | From | Carel Si <> | Subject | Re: [LKP] Re: [x86/mm/64] f154f29085: BUG:kernel_reboot-without-warning_in_boot_stage |
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Hi Boris,
On Tue, Dec 14, 2021 at 05:38:57PM +0100, Borislav Petkov wrote: > On Thu, Dec 09, 2021 at 10:41:41PM +0800, kernel test robot wrote: > > > > > > Greeting, > > > > FYI, we noticed the following commit (built with clang-14): > > > > commit: f154f290855b070cc94dd44ad253c0ef8a9337bb ("x86/mm/64: Flush global TLB on boot and AP bringup") > > https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git x86/mm > > > > 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): > > > > > > +-------------------------------------------------+------------+------------+ > > | | 9de4999050 | f154f29085 | > > +-------------------------------------------------+------------+------------+ > > | BUG:kernel_reboot-without-warning_in_boot_stage | 0 | 13 | > > +-------------------------------------------------+------------+------------+ > > > > > > If you fix the issue, kindly add following tag > > Reported-by: kernel test robot <oliver.sang@intel.com> > > > > > > Physical KASLR using RDTSC... > > Virtual KASLR using RDTSC... > > > > Decompressing Linux... Parsing ELF... Performing relocations... done. > > Booting the kernel. > > BUG: kernel reboot-without-warning in boot stage > > Linux version 5.16.0-rc3-00003-gf154f290855b #1 > > Command line: ip=::::vm-snb-192::dhcp root=/dev/ram0 user=lkp job=/lkp/jobs/scheduled/vm-snb-192/boot-1-debian-10.4-x86_64-20200603.cgz-f154f290855b070cc94dd44ad253c0ef8a9337bb-20211208-23538-lnvkeg-5.yaml ARCH=x86_64 kconfig=x86_64-randconfig-a013-20211207 branch=tip/x86/mm commit=f154f290855b070cc94dd44ad253c0ef8a9337bb BOOT_IMAGE=/pkg/linux/x86_64-randconfig-a013-20211207/clang-14/f154f290855b070cc94dd44ad253c0ef8a9337bb/vmlinuz-5.16.0-rc3-00003-gf154f290855b vmalloc=128M initramfs_async=0 page_owner=on max_uptime=600 RESULT_ROOT=/result/boot/1/vm-snb/debian-10.4-x86_64-20200603.cgz/x86_64-randconfig-a013-20211207/clang-14/f154f290855b070cc94dd44ad253c0ef8a9337bb/3 LKP_SERVER=internal-lkp-server selinux=0 debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 net.ifnames=0 printk.devkmsg=on panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0 drbd.minor_count=8 systemd.log_level=err ignore_loglevel console=tty0 earlyprintk=ttyS0,115200 console=ttyS0,115200 vga=normal rw rcuperf.shutdown=0 watchdog_thresh=240 > > > > Kboot worker: lkp-worker30 > > Elapsed time: 60 > > My guest boots fine here on an AMD host, albeit it takes a while until > "Booting the kernel" appears. > > You probably should verify by hand whether your guest simply needs > longer before it starts booting the kernel...
We have verified by hand, still can reproduce this issue.
We also double checked, this issue still exists in 35fa745286 ("x86/mm: Include spinlock_t definition in pgtable") which is the head of tip/x86/mm, thanks.
========================================================================================= compiler/kconfig/rootfs/sleep/tbox_group/testcase: clang-14/x86_64-randconfig-a013-20211207/debian-10.4-x86_64-20200603.cgz/1/vm-snb/boot
commit: 9de4999050 ("x86/realmode: Add comment for Global bit usage in trampoline_pgd") f154f29085 ("x86/mm/64: Flush global TLB on boot and AP bringup") 35fa745286 ("x86/mm: Include spinlock_t definition in pgtable.")
9de4999050b5f2e8 f154f290855b070cc94dd44ad25 35fa745286ac44ee26ed100c2bd ---------------- --------------------------- --------------------------- fail:runs %reproduction fail:runs %reproduction fail:runs | | | | | :27 100% 27:27 100% 27:27 dmesg.BUG:kernel_reboot-without-warning_in_boot_stage
> > early console in setup code > early console in extract_kernel > input_data: 0x0000000005ce82e0 > input_len: 0x0000000001d21920 > output: 0x0000000001000000 > output_len: 0x000000000650d2ec > kernel_total_size: 0x0000000006e2c000 > needed_size: 0x0000000007000000 > trampoline_32bit: 0x000000000009d000 > Physical KASLR using RDTSC... > Virtual KASLR using RDTSC... > > Decompressing Linux... Parsing ELF... Performing relocations... done. > Booting the kernel. > [ 0.000000][ T0] Linux version 5.16.0-rc3-00005-g35fa745286ac (boris@zn) (ClangBuiltLinux clang version 14.0.0 (https://github.com/llvm/llvm-project 08a770c378ca5d8975ef305d15f297c3f980d186), GNU ld (GNU Binutils for Debian) 2.37) #3 PREEMPT Tue Dec 14 17:29:41 CET 2021 > [ 0.000000][ T0] Command line: root=/dev/sda1 resume=/dev/sda2 debug ignore_loglevel log_buf_len=16M earlyprintk=ttyS0,115200 console=ttyS0,115200 console=tty0 no_console_suspend net.ifnames=0 > [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' > [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' > [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' > [ 0.000000][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 > [ 0.000000][ T0] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. > [ 0.000000][ T0] signal: max sigframe size: 1360 > [ 0.000000][ T0] printk: debug: ignoring loglevel setting. > [ 0.000000][ T0] printk: bootconsole [earlyser0] enabled > [ 0.000000][ T0] BIOS-provided physical RAM map: > ... > > -- > Regards/Gruss, > Boris. > > SUSE Software Solutions Germany GmbH, GF: Ivo Totev, HRB 36809, AG Nürnberg > _______________________________________________ > LKP mailing list -- lkp@lists.01.org > To unsubscribe send an email to lkp-leave@lists.01.org
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