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Message-ID: <202408061634.fe6be94-oliver.sang@intel.com>
Date: Tue, 6 Aug 2024 16:21:28 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Masahiro Yamada <masahiroy@...nel.org>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>, <linux-kernel@...r.kernel.org>,
<linux-kbuild@...r.kernel.org>, <oliver.sang@...el.com>
Subject: [linus:master] [kconfig] f79dc03fe6: segfault_at_ip_sp_error
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?
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.
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 <oliver.sang@...el.com>
| 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 <f3> 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
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