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Date:   Sun, 3 Jan 2021 22:27:26 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     Helge Deller <deller@....de>
Cc:     0day robot <lkp@...el.com>, LKML <linux-kernel@...r.kernel.org>,
        lkp@...ts.01.org, Alexey Dobriyan <adobriyan@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-fsdevel@...r.kernel.org
Subject: [proc/wchan]  30a3a19273:
 leaking-addresses.proc.wchan./proc/bus/input/devices:B:KEY=1000000000007ff980000000007fffebeffdfffeffffffffffffffffffffe


Greeting,

FYI, we noticed the following commit (built with gcc-9):

commit: 30a3a192730a997bc4afff5765254175b6fb64f3 ("[PATCH] proc/wchan: Use printk format instead of lookup_symbol_name()")
url: https://github.com/0day-ci/linux/commits/Helge-Deller/proc-wchan-Use-printk-format-instead-of-lookup_symbol_name/20201218-010048
base: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git 09162bc32c880a791c6c0668ce0745cf7958f576

in testcase: leaking-addresses
version: leaking-addresses-x86_64-4f19048-1_20201111
with following parameters:

	ucode: 0xde



on test machine: 4 threads Intel(R) Core(TM) i7-7567U CPU @ 3.50GHz with 32G memory

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 <oliver.sang@...el.com>

2021-01-01 01:52:25 ./leaking_addresses.pl --output-raw result/scan.out
2021-01-01 01:52:49 ./leaking_addresses.pl --input-raw result/scan.out --squash-by-filename

Total number of results from scan (incl dmesg): 156538

dmesg output:
[    0.058490] mapped IOAPIC to ffffffffff5fb000 (fec00000)

Results squashed by filename (excl dmesg). Displaying [<number of results> <filename>], <example result>
[1 _error_injection_whitelist] 0xffffffffc0a254b0
[25 __bug_table] 0xffffffffc01e0070
[46 .orc_unwind_ip] 0xffffffffc009f3a0
[6 __tracepoints_strings] 0xffffffffc027d7d0
[50 .strtab] 0xffffffffc00b9b88
[1 .rodata.cst16.mask2] 0xffffffffc00a70e0
[1 key] 1000000000007 ff980000000007ff febeffdfffefffff fffffffffffffffe
[50 .note.Linux] 0xffffffffc009f024
[41 .data] 0xffffffffc00a1000
[6 .static_call.text] 0xffffffffc0274b44
[1 _ftrace_eval_map] 0xffffffffc0a20148
[10 .data.once] 0xffffffffc04475b4
[7 .static_call_sites] 0xffffffffc0a22088
[6 __tracepoints_ptrs] 0xffffffffc027d7bc
[7 .fixup] 0xffffffffc00852ea
[49 __mcount_loc] 0xffffffffc009f03c
[19 __param] 0xffffffffc009f378
[38 .rodata.str1.8] 0xffffffffc009f170
[1 ___srcu_struct_ptrs] 0xffffffffc0355000
[14 .altinstr_replacement] 0xffffffffc04349ca
[154936 kallsyms] ffffffff81000000 T startup_64
[50 .gnu.linkonce.this_module] 0xffffffffc00a1140
[24 __ksymtab_strings] 0xffffffffc00e2048
[31 .bss] 0xffffffffc00a1500
[42 .rodata.str1.1] 0xffffffffc009f09c
[9 .init.rodata] 0xffffffffc00b8000
[11 __ex_table] 0xffffffffc00bd128
[14 .parainstructions] 0xffffffffc03b5d88
[6 __tracepoints] 0xffffffffc02818c0
[1 .rodata.cst16.mask1] 0xffffffffc00a70d0
[18 __dyndbg] 0xffffffffc00a10c8
[5 .altinstr_aux] 0xffffffffc0143a49
[22 .smp_locks] 0xffffffffc009f094
[2 .rodata.cst16.bswap_mask] 0xffffffffc005e070
[40 .init.text] 0xffffffffc00b7000
[4 .init.data] 0xffffffffc00e7000
[10 .data..read_mostly] 0xffffffffc00a1100
[14 .altinstructions] 0xffffffffc0446846
[6 __bpf_raw_tp_map] 0xffffffffc0281720
[50 .note.gnu.build-id] 0xffffffffc009f000
[6 _ftrace_events] 0xffffffffc0281780
[140 printk_formats] 0xffffffff82341767 : "CPU_ON"
[25 __jump_table] 0xffffffffc00a0000
[37 .exit.text] 0xffffffffc009ec70
[50 .text] 0xffffffffc009e000
[35 .text.unlikely] 0xffffffffc009ebaf
[18 __ksymtab] 0xffffffffc00e203c
[46 .orc_unwind] 0xffffffffc009f544
[1 .data..cacheline_aligned] 0xffffffffc081d8c0
[2 .noinstr.text] 0xffffffffc04b8d00
[1 uevent] KEY=1000000000007 ff980000000007ff febeffdfffefffff fffffffffffffffe
[50 modules] netconsole 20480 0 - Live 0xffffffffc00cb000
[337 blacklist] 0xffffffff81c00880-0xffffffff81c008a0	asm_exc_overflow
[1 .rodata.cst32.byteshift_table] 0xffffffffc00a7100
[2 wchan] 0xffffc9000000003c/proc/bus/input/devices: B: KEY=1000000000007 ff980000000007ff febeffdfffefffff fffffffffffffffe
[6 .ref.data] 0xffffffffc02817a0
[14 __ksymtab_gpl] 0xffffffffc03b503c
[42 .rodata] 0xffffffffc009f2c0
[50 .symtab] 0xffffffffc00b9000



To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp install job.yaml  # job file is attached in this email
        bin/lkp run     job.yaml



Thanks,
Oliver Sang


View attachment "config-5.10.0-rc4-00001-g30a3a192730a" of type "text/plain" (171021 bytes)

View attachment "job-script" of type "text/plain" (5452 bytes)

Download attachment "kmsg.xz" of type "application/x-xz" (20216 bytes)

View attachment "leaking-addresses" of type "text/plain" (2909 bytes)

View attachment "job.yaml" of type "text/plain" (4392 bytes)

View attachment "reproduce" of type "text/plain" (125 bytes)

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