* [linux-next:master] [init] b8de39bd1b: BUG:kernel_failed_in_early-boot_stage,last_printk:early_console_in_setup_code
@ 2024-04-22 7:45 kernel test robot
2024-04-22 8:29 ` Nam Cao
0 siblings, 1 reply; 4+ messages in thread
From: kernel test robot @ 2024-04-22 7:45 UTC (permalink / raw
To: Nam Cao
Cc: oe-lkp, lkp, Linux Memory Management List, Andrew Morton,
Björn Töpel, Mike Rapoport, Andreas Dilger,
Arnd Bergmann, Changbin Du, Christophe Leroy, Geert Uytterhoeven,
Ingo Molnar, Krister Johansen, Luis Chamberlain, Nick Desaulniers,
Stephen Rothwell, Tejun Heo, Thomas Gleixner, linux-kernel,
oliver.sang
Hello,
kernel test robot noticed "BUG:kernel_failed_in_early-boot_stage,last_printk:early_console_in_setup_code" on:
commit: b8de39bd1b76faffe7cd91e148a6d7d9bf4e38f7 ("init: fix allocated page overlapping with PTR_ERR")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
[test failed on linux-next/master a35e92ef04c07bd473404b9b73d489aea19a60a8]
in testcase: boot
compiler: gcc-13
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
(please refer to attached dmesg/kmsg for entire log/backtrace)
+-------------------------------------------------------------------------------+------------+------------+
| | fdb74eb6c7 | b8de39bd1b |
+-------------------------------------------------------------------------------+------------+------------+
| boot_successes | 12 | 0 |
| boot_failures | 0 | 12 |
| BUG:kernel_failed_in_early-boot_stage,last_printk:early_console_in_setup_code | 0 | 12 |
+-------------------------------------------------------------------------------+------------+------------+
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202404221524.4954a009-oliver.sang@intel.com
early console in setup code
convert early boot stage from hang to failed
BUG: kernel failed in early-boot stage, last printk: early console in setup code
Linux version 6.9.0-rc4-00031-gb8de39bd1b76 #1
Command line: ip=::::vm-meta-21::dhcp root=/dev/ram0 RESULT_ROOT=/result/boot/1/vm-snb/yocto-i386-minimal-20190520.cgz/x86_64-randconfig-003-20240419/gcc-13/b8de39bd1b76faffe7cd91e148a6d7d9bf4e38f7/3 BOOT_IMAGE=/pkg/linux/x86_64-randconfig-003-20240419/gcc-13/b8de39bd1b76faffe7cd91e148a6d7d9bf4e38f7/vmlinuz-6.9.0-rc4-00031-gb8de39bd1b76 branch=linux-next/master job=/lkp/jobs/scheduled/vm-meta-21/boot-1-yocto-i386-minimal-20190520.cgz-x86_64-randconfig-003-20240419-b8de39bd1b76-20240420-48196-3fymo-3.yaml user=lkp ARCH=x86_64 kconfig=x86_64-randconfig-003-20240419 commit=b8de39bd1b76faffe7cd91e148a6d7d9bf4e38f7 nmi_watchdog=0 intremap=posted_msi vmalloc=256M initramfs_async=0 page_owner=on max_uptime=600 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 audit=0
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20240422/202404221524.4954a009-oliver.sang@intel.com
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [linux-next:master] [init] b8de39bd1b: BUG:kernel_failed_in_early-boot_stage,last_printk:early_console_in_setup_code
2024-04-22 7:45 [linux-next:master] [init] b8de39bd1b: BUG:kernel_failed_in_early-boot_stage,last_printk:early_console_in_setup_code kernel test robot
@ 2024-04-22 8:29 ` Nam Cao
2024-04-22 9:18 ` Mike Rapoport
0 siblings, 1 reply; 4+ messages in thread
From: Nam Cao @ 2024-04-22 8:29 UTC (permalink / raw
To: kernel test robot
Cc: oe-lkp, lkp, Linux Memory Management List, Andrew Morton,
Björn Töpel, Mike Rapoport, Andreas Dilger,
Arnd Bergmann, Changbin Du, Christophe Leroy, Geert Uytterhoeven,
Ingo Molnar, Krister Johansen, Luis Chamberlain, Nick Desaulniers,
Stephen Rothwell, Tejun Heo, Thomas Gleixner, linux-kernel
On Mon, Apr 22, 2024 at 03:45:00PM +0800, kernel test robot wrote:
> kernel test robot noticed "BUG:kernel_failed_in_early-boot_stage,last_printk:early_console_in_setup_code" on:
>
> commit: b8de39bd1b76faffe7cd91e148a6d7d9bf4e38f7 ("init: fix allocated page overlapping with PTR_ERR")
> https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
I can reproduce the problem. I rebased this commit onto v6.8.7, I can still
observe the problem.
No immediate idea what is the problem. Backtrace from gdb goes crazy:
(gdb) bt
#0 0xffffffffb2074ded in ?? ()
#1 0x00000000000000a1 in ?? ()
#2 0x00000000000000a1 in ?? ()
#3 0x000000007ffff000 in ?? ()
#4 0x00000000543ff000 in ?? ()
#5 0x0000000000000000 in ?? ()
@akpm: drop this commit until this is figured out?
Best regards,
Nam
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [linux-next:master] [init] b8de39bd1b: BUG:kernel_failed_in_early-boot_stage,last_printk:early_console_in_setup_code
2024-04-22 8:29 ` Nam Cao
@ 2024-04-22 9:18 ` Mike Rapoport
2024-04-22 10:18 ` Nam Cao
0 siblings, 1 reply; 4+ messages in thread
From: Mike Rapoport @ 2024-04-22 9:18 UTC (permalink / raw
To: Nam Cao
Cc: kernel test robot, oe-lkp, lkp, Linux Memory Management List,
Andrew Morton, Björn Töpel, Andreas Dilger,
Arnd Bergmann, Changbin Du, Christophe Leroy, Geert Uytterhoeven,
Ingo Molnar, Krister Johansen, Luis Chamberlain, Nick Desaulniers,
Stephen Rothwell, Tejun Heo, Thomas Gleixner, linux-kernel
On Mon, Apr 22, 2024 at 10:29:42AM +0200, Nam Cao wrote:
> On Mon, Apr 22, 2024 at 03:45:00PM +0800, kernel test robot wrote:
> > kernel test robot noticed "BUG:kernel_failed_in_early-boot_stage,last_printk:early_console_in_setup_code" on:
> >
> > commit: b8de39bd1b76faffe7cd91e148a6d7d9bf4e38f7 ("init: fix allocated page overlapping with PTR_ERR")
> > https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
>
> I can reproduce the problem. I rebased this commit onto v6.8.7, I can still
> observe the problem.
>
> No immediate idea what is the problem. Backtrace from gdb goes crazy:
>
> (gdb) bt
> #0 0xffffffffb2074ded in ?? ()
> #1 0x00000000000000a1 in ?? ()
> #2 0x00000000000000a1 in ?? ()
> #3 0x000000007ffff000 in ?? ()
> #4 0x00000000543ff000 in ?? ()
> #5 0x0000000000000000 in ?? ()
The kernel config here has CONFIG_DEBUG_VIRTUAL=y, so __pa translates to
__phys_addr() in arch/x86/mm/physaddr.c and __pa(-PAGE_SIZE) triggers
VIRTUAL_BUG_ON(y >= KERNEL_IMAGE_SIZE);
x86 has __pa_nodebug() that does not do bounds check, but it cannot be used
in generic code because no other arch except s390 define it.
For now I don't have ideas how to make this work in the general case, so
probably we should only fix riscv for now.
> @akpm: drop this commit until this is figured out?
>
> Best regards,
> Nam
>
--
Sincerely yours,
Mike.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [linux-next:master] [init] b8de39bd1b: BUG:kernel_failed_in_early-boot_stage,last_printk:early_console_in_setup_code
2024-04-22 9:18 ` Mike Rapoport
@ 2024-04-22 10:18 ` Nam Cao
0 siblings, 0 replies; 4+ messages in thread
From: Nam Cao @ 2024-04-22 10:18 UTC (permalink / raw
To: Mike Rapoport
Cc: kernel test robot, oe-lkp, lkp, Linux Memory Management List,
Andrew Morton, Björn Töpel, Andreas Dilger,
Arnd Bergmann, Changbin Du, Christophe Leroy, Geert Uytterhoeven,
Ingo Molnar, Krister Johansen, Luis Chamberlain, Nick Desaulniers,
Stephen Rothwell, Tejun Heo, Thomas Gleixner, linux-kernel
On Mon, Apr 22, 2024 at 12:18:46PM +0300, Mike Rapoport wrote:
> The kernel config here has CONFIG_DEBUG_VIRTUAL=y, so __pa translates to
> __phys_addr() in arch/x86/mm/physaddr.c and __pa(-PAGE_SIZE) triggers
>
> VIRTUAL_BUG_ON(y >= KERNEL_IMAGE_SIZE);
RISCV also has a similar thing when CONFIG_DEBUG_VIRTUAL=y
>
> x86 has __pa_nodebug() that does not do bounds check, but it cannot be used
> in generic code because no other arch except s390 define it.
>
> For now I don't have ideas how to make this work in the general case, so
> probably we should only fix riscv for now.
Agree, let's just fix riscv for now. This time I will cook up something
safer, no more __pa() on a potentially invalid address.
Best regards,
Nam
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2024-04-22 10:18 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2024-04-22 7:45 [linux-next:master] [init] b8de39bd1b: BUG:kernel_failed_in_early-boot_stage,last_printk:early_console_in_setup_code kernel test robot
2024-04-22 8:29 ` Nam Cao
2024-04-22 9:18 ` Mike Rapoport
2024-04-22 10:18 ` Nam Cao
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.