On Tue, Jan 25, 2022 at 9:23 PM Tong Zhang <ztong0001@xxxxxxxxx> wrote: > > On Tue, Jan 25, 2022 at 9:04 PM Murphy Zhou <jencce.kernel@xxxxxxxxx> wrote: > > > > Still panic with this patch on Linux-next tree: > > > > [ 1128.275515] LTP: starting binfmt_misc02 (binfmt_misc02.sh) > > [ 1128.303975] CPU: 1 PID: 107182 Comm: modprobe Kdump: loaded > > Tainted: G W 5.17.0-rc1-next-20220125+ #1 > > [ 1128.305264] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011 > > [ 1128.305992] Call Trace: > > [ 1128.306376] <TASK> > > [ 1128.306682] dump_stack_lvl+0x34/0x44 > > [ 1128.307211] __register_sysctl_table+0x2c7/0x4a0 > > [ 1128.307846] ? load_module+0xb37/0xbb0 > > [ 1128.308339] ? 0xffffffffc01b6000 > > [ 1128.308762] init_misc_binfmt+0x32/0x1000 [binfmt_misc] > > [ 1128.309402] do_one_initcall+0x44/0x200 > > [ 1128.309937] ? kmem_cache_alloc_trace+0x163/0x2c0 > > [ 1128.310535] do_init_module+0x5c/0x260 > > [ 1128.311045] __do_sys_finit_module+0xb4/0x120 > > [ 1128.311603] do_syscall_64+0x3b/0x90 > > [ 1128.312088] entry_SYSCALL_64_after_hwframe+0x44/0xae > > [ 1128.312755] RIP: 0033:0x7f929ab85fbd > > > > Testing patch on Linus tree. > > Hi Murphy, > Did you apply this patch? > Link: https://lkml.kernel.org/r/20220124181812.1869535-2-ztong0001@xxxxxxxxx > I tested it on top of the current master branch and it works on my > setup using the reproducer I mentioned. > Could you share your test script? > Thanks, > - Tong I can find binfmt_misc02.sh on github, and running the following command shows: failed 0. ./runltp -s binfmt_misc Running tests....... <<<test_start>>> tag=binfmt_misc01 stime=1643178454 cmdline="binfmt_misc01.sh" contacts="" analysis=exit <<<test_output>>> [ 90.908282] LTP: starting binfmt_misc01 (binfmt_misc01.sh) binfmt_misc01 1 TINFO: timeout per run is 0h 5m 0s binfmt_misc01 1 TPASS: Failed to register a binary type binfmt_misc01 2 TPASS: Failed to register a binary type binfmt_misc01 3 TPASS: Failed to register a binary type binfmt_misc01 4 TPASS: Failed to register a binary type binfmt_misc01 5 TPASS: Failed to register a binary type binfmt_misc01 6 TPASS: Failed to register a binary type binfmt_misc01 7 TPASS: Failed to register a binary type binfmt_misc01 8 TPASS: Failed to register a binary type binfmt_misc01 9 TPASS: Failed to register a binary type Summary: passed 9 failed 0 broken 0 skipped 0 warnings 0 <<<execution_status>>> initiation_status="ok" duration=0 termination_type=exited termination_id=0 corefile=no cutime=2 cstime=17 <<<test_end>>> <<<test_start>>> tag=binfmt_misc02 stime=1643178454 cmdline="binfmt_misc02.sh" contacts="" analysis=exit <<<test_output>>> [ 91.133399] LTP: starting binfmt_misc02 (binfmt_misc02.sh) incrementing stop binfmt_misc02 1 TINFO: timeout per run is 0h 5m 0s binfmt_misc02 1 TPASS: Recognise and unrecognise a binary type as expected binfmt_misc02 2 TPASS: Recognise and unrecognise a binary type as expected binfmt_misc02 3 TPASS: Recognise and unrecognise a binary type as expected binfmt_misc02 4 TPASS: Recognise and unrecognise a binary type as expected binfmt_misc02 5 TPASS: Fail to recognise a binary type binfmt_misc02 6 TPASS: Fail to recognise a binary type Summary: passed 6 failed 0 broken 0 skipped 0 warnings 0 <<<execution_status>>> initiation_status="ok" duration=0 termination_type=exited termination_id=0 corefile=no cutime=3 cstime=25 <<<test_end>>> INFO: ltp-pan reported all tests PASS LTP Version: 20220121-9-g010e4f783 ############################################################### Done executing testcases. LTP Version: 20220121-9-g010e4f783 ###############################################################
