From: Oliver Sang <oliver.sang@intel.com> To: Helge Deller <deller@gmx.de> Cc: 0day robot <lkp@intel.com>, LKML <linux-kernel@vger.kernel.org>, lkp@lists.01.org, Alexey Dobriyan <adobriyan@gmail.com>, Andrew Morton <akpm@linux-foundation.org>, linux-fsdevel@vger.kernel.org Subject: Re: [proc/wchan] 30a3a19273: leaking-addresses.proc.wchan./proc/bus/input/devices:B:KEY=1000000000007ff980000000007fffebeffdfffeffffffffffffffffffffe Date: Mon, 4 Jan 2021 21:27:13 +0800 [thread overview] Message-ID: <20210104132713.GA9355@xsang-OptiPlex-9020> (raw) In-Reply-To: <d15378c8-8702-47ba-65b7-450f728793ed@gmx.de> On Sun, Jan 03, 2021 at 07:25:36PM +0100, Helge Deller wrote: > On 1/3/21 3:27 PM, kernel test robot wrote: > > > > 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): > > I don't see anything wrong with the wchan patch (30a3a192730a997bc4afff5765254175b6fb64f3), > or that it could have leaked anything. > > Maybe the kernel test robot picked up the wchan patch by mistake ? thanks for information. we will look at this and fix robot if any problem. > > Helge > > > > > > If you fix the issue, kindly add following tag > > Reported-by: kernel test robot <oliver.sang@intel.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 > > >
WARNING: multiple messages have this Message-ID (diff)
From: Oliver Sang <oliver.sang@intel.com> To: lkp@lists.01.org Subject: Re: [proc/wchan] 30a3a19273: leaking-addresses.proc.wchan./proc/bus/input/devices:B:KEY=1000000000007ff980000000007fffebeffdfffeffffffffffffffffffffe Date: Mon, 04 Jan 2021 21:27:13 +0800 [thread overview] Message-ID: <20210104132713.GA9355@xsang-OptiPlex-9020> (raw) In-Reply-To: <d15378c8-8702-47ba-65b7-450f728793ed@gmx.de> [-- Attachment #1: Type: text/plain, Size: 4915 bytes --] On Sun, Jan 03, 2021 at 07:25:36PM +0100, Helge Deller wrote: > On 1/3/21 3:27 PM, kernel test robot wrote: > > > > 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): > > I don't see anything wrong with the wchan patch (30a3a192730a997bc4afff5765254175b6fb64f3), > or that it could have leaked anything. > > Maybe the kernel test robot picked up the wchan patch by mistake ? thanks for information. we will look at this and fix robot if any problem. > > Helge > > > > > > If you fix the issue, kindly add following tag > > Reported-by: kernel test robot <oliver.sang@intel.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 > > >
next prev parent reply other threads:[~2021-01-04 13:12 UTC|newest] Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-12-17 16:54 [PATCH] proc/wchan: Use printk format instead of lookup_symbol_name() Helge Deller 2020-12-23 2:18 ` Andrew Morton 2020-12-23 9:48 ` Helge Deller 2020-12-23 20:29 ` Andrew Morton 2021-01-03 14:27 ` [proc/wchan] 30a3a19273: leaking-addresses.proc.wchan./proc/bus/input/devices:B:KEY=1000000000007ff980000000007fffebeffdfffeffffffffffffffffffffe kernel test robot 2021-01-03 14:27 ` kernel test robot 2021-01-03 18:25 ` Helge Deller 2021-01-03 18:25 ` Helge Deller 2021-01-04 13:27 ` Oliver Sang [this message] 2021-01-04 13:27 ` Oliver Sang 2021-09-24 1:01 ` /proc/$pid/chan kernel address exposures (was Re: [proc/wchan] 30a3a19273: leaking-addresses.proc.wchan./proc/bus/input/devices:B:KEY=1000000000007ff980000000007fffebeffdfffeffffffffffffffffffffe) Kees Cook 2021-09-24 1:01 ` Kees Cook
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