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
