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X-MS-Exchange-CrossTenant-UserPrincipalName: Npc3Eecyn7CMJ5FgUzD+7kYVJqfoR79vBdLC7AaIKzS9jcx6FuxMs2XIJtc/hflygcmF2txokOmfd4t38jdqow== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN7PR11MB7020 X-OriginatorOrg: intel.com hi, Masahiro Yamada, On Tue, Aug 06, 2024 at 05:57:47PM +0900, Masahiro Yamada wrote: > On Tue, Aug 6, 2024 at 5:21 PM kernel test robot wrote: > > > > > > hi, Masahiro Yamada, > > > > the config for this test is a random config, by this commit, the config has > > below diff with parent: > > > > --- /pkg/linux/i386-randconfig-r032-20230623/gcc-12/ee29e6204c32dce013ac6d1078d98dce5607ce86/.config 2024-08-05 12:56:30.744686432 +0800 > > +++ /pkg/linux/i386-randconfig-r032-20230623/gcc-12/f79dc03fe68c79d388908182e68d702f7f1786bc/.config 2024-08-05 12:56:37.620536644 +0800 > > @@ -770,14 +770,14 @@ CONFIG_MODULE_UNLOAD=y > > CONFIG_MODULE_SIG=y > > # CONFIG_MODULE_SIG_FORCE is not set > > CONFIG_MODULE_SIG_ALL=y > > -CONFIG_MODULE_SIG_SHA1=y > > +# CONFIG_MODULE_SIG_SHA1 is not set > > # CONFIG_MODULE_SIG_SHA256 is not set > > # CONFIG_MODULE_SIG_SHA384 is not set > > # CONFIG_MODULE_SIG_SHA512 is not set > > -# CONFIG_MODULE_SIG_SHA3_256 is not set > > +CONFIG_MODULE_SIG_SHA3_256=y > > # CONFIG_MODULE_SIG_SHA3_384 is not set > > # CONFIG_MODULE_SIG_SHA3_512 is not set > > -CONFIG_MODULE_SIG_HASH="sha1" > > +CONFIG_MODULE_SIG_HASH="sha3-256" > > CONFIG_MODULE_COMPRESS_NONE=y > > # CONFIG_MODULE_COMPRESS_GZIP is not set > > # CONFIG_MODULE_COMPRESS_XZ is not set > > @@ -6201,7 +6201,6 @@ CONFIG_FIPS_SIGNATURE_SELFTEST_ECDSA=y > > # > > CONFIG_MODULE_SIG_KEY="certs/signing_key.pem" > > CONFIG_MODULE_SIG_KEY_TYPE_RSA=y > > -# CONFIG_MODULE_SIG_KEY_TYPE_ECDSA is not set > > CONFIG_SYSTEM_TRUSTED_KEYRING=y > > CONFIG_SYSTEM_TRUSTED_KEYS="" > > CONFIG_SYSTEM_EXTRA_CERTIFICATE=y > > > > > > we are not sure if these are expected? > > > This is expected. > > f79dc03fe68c79d388908182e68d702f7f1786bc changed the way how choice is > calculated. > So, the randconfig from the same seed can result in a different .config file. > > > > > we are not sure either if the issue in below report is caused by this config > > diff. just report what we observed in our tests FYI. > > > I believe it is a different issue. > > It is just a problem with the combination of depmod > and CONFIG_MODULE_SIG_SHA3_256=y, isn't it? we are not sure. we just use randconfig to run rcutorture tests. > > > What is your depmod (kmod) version? our kmod version is 28 > > The crash of kmod<=28 with CONFIG_MODULE_SIG_SHA3_384=y is a known issue: > > https://lore.kernel.org/linux-kbuild/E1rNVlL-000qDm-Pg@rmk-PC.armlinux.org.uk/ > > > > > > > > > Hello, > > > > kernel test robot noticed "segfault_at_ip_sp_error" on: > > > > commit: f79dc03fe68c79d388908182e68d702f7f1786bc ("kconfig: refactor choice value calculation") > > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master > > > > [test failed on linus/master de9c2c66ad8e787abec7c9d7eff4f8c3cdd28aed] > > [test failed on linux-next/master d6dbc9f56c3a70e915625b6f1887882c23dc5c91] > > > > in testcase: rcutorture > > version: > > with following parameters: > > > > runtime: 300s > > test: default > > torture_type: srcud > > > > > > > > compiler: gcc-12 > > test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 4G > > > > (please refer to attached dmesg/kmsg for entire log/backtrace) > > > > > > +-------------------------+------------+------------+ > > | | ee29e6204c | f79dc03fe6 | > > +-------------------------+------------+------------+ > > | segfault_at_ip_sp_error | 0 | 30 | > > +-------------------------+------------+------------+ > > > > > > 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 > > | Closes: https://lore.kernel.org/oe-lkp/202408061634.fe6be94-oliver.sang@intel.com > > > > > > [ OK ] Started OpenBSD Secure Shell server. > > LKP: ttyS0: 263: Kernel tests: Boot OK! > > LKP: ttyS0: 263: HOSTNAME vm-snb-i386, MAC 52:54:00:12:34:56, kernel 6.10.0-rc7-00022-gf79dc03fe68c 1 > > [ 12.271477][ T23] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input3 > > LKP: ttyS0: 263: /lkp/lkp/src/bin/run-lkp /lkp/jobs/scheduled/vm-meta-59/rcutorture-300s-default-srcud-debian-11.1-i386-20220923.cgz-i386-randconfig-r032-20230623-f79dc03fe68c-20240805-47158-x4nrel-3.yaml > > [ 15.209351][ T483] depmod[483]: segfault at 0 ip b7abe4f6 sp bfb00aa4 error 4 in libc-2.31.so[8c4f6,b7a4b000+155000] likely on CPU 0 (core 0, socket 0) > > [ 15.210249][ T483] Code: 5b 5e 29 f8 5f c3 66 90 66 90 66 90 66 90 66 90 66 90 66 90 56 57 8b 7c 24 0c 31 c0 89 f9 83 e1 3f 66 0f ef c0 83 f9 30 77 17 0f 6f 0f 66 0f 74 c1 66 0f d7 d0 85 d2 75 73 89 f8 83 e0 f0 eb > > All code > > ======== > > 0: 5b pop %rbx > > 1: 5e pop %rsi > > 2: 29 f8 sub %edi,%eax > > 4: 5f pop %rdi > > 5: c3 retq > > 6: 66 90 xchg %ax,%ax > > 8: 66 90 xchg %ax,%ax > > a: 66 90 xchg %ax,%ax > > c: 66 90 xchg %ax,%ax > > e: 66 90 xchg %ax,%ax > > 10: 66 90 xchg %ax,%ax > > 12: 66 90 xchg %ax,%ax > > 14: 56 push %rsi > > 15: 57 push %rdi > > 16: 8b 7c 24 0c mov 0xc(%rsp),%edi > > 1a: 31 c0 xor %eax,%eax > > 1c: 89 f9 mov %edi,%ecx > > 1e: 83 e1 3f and $0x3f,%ecx > > 21: 66 0f ef c0 pxor %xmm0,%xmm0 > > 25: 83 f9 30 cmp $0x30,%ecx > > 28: 77 17 ja 0x41 > > 2a:* f3 0f 6f 0f movdqu (%rdi),%xmm1 <-- trapping instruction > > 2e: 66 0f 74 c1 pcmpeqb %xmm1,%xmm0 > > 32: 66 0f d7 d0 pmovmskb %xmm0,%edx > > 36: 85 d2 test %edx,%edx > > 38: 75 73 jne 0xad > > 3a: 89 f8 mov %edi,%eax > > 3c: 83 e0 f0 and $0xfffffff0,%eax > > 3f: eb .byte 0xeb > > > > Code starting with the faulting instruction > > =========================================== > > 0: f3 0f 6f 0f movdqu (%rdi),%xmm1 > > 4: 66 0f 74 c1 pcmpeqb %xmm1,%xmm0 > > 8: 66 0f d7 d0 pmovmskb %xmm0,%edx > > c: 85 d2 test %edx,%edx > > e: 75 73 jne 0x83 > > 10: 89 f8 mov %edi,%eax > > 12: 83 e0 f0 and $0xfffffff0,%eax > > 15: eb .byte 0xeb > > [ 15.251290][ T487] torture module --- srcud: disable_onoff_at_boot=0 ftrace_dump_at_shutdown=0 verbose_sleep_frequency=0 verbose_sleep_duration=1 random_shuffle=0 > > [ 15.255881][ T487] srcud-torture:--- Start of test: nreaders=1 nfakewriters=4 stat_interval=60 verbose=1 test_no_idle_hz=1 shuffle_interval=3 stutter=5 irqreader=1 fqs_duration=0 fqs_holdoff=0 fqs_stutter=3 test_boost=1/0 test_boost_interval=7 test_boost_duration=4 shutdown_secs=0 stall_cpu=0 stall_cpu_holdoff=10 stall_cpu_irqsoff=0 stall_cpu_block=0 n_barrier_cbs=0 onoff_interval=0 onoff_holdoff=0 read_exit_delay=13 read_exit_burst=16 nocbs_nthreads=0 nocbs_toggle=1000 test_nmis=0 > > [ 15.258765][ T487] srcud: Start-test grace-period state: g0 f0x0 > > [ 15.259257][ T487] rcu_torture_write_types: Testing expedited GPs. > > [ 15.259713][ T487] rcu_torture_write_types: Testing asynchronous GPs. > > > > > > The kernel config and materials to reproduce are available at: > > https://download.01.org/0day-ci/archive/20240806/202408061634.fe6be94-oliver.sang@intel.com > > > > > > > > -- > > 0-DAY CI Kernel Test Service > > https://github.com/intel/lkp-tests/wiki > > > > > -- > Best Regards > Masahiro Yamada