lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Wed, 07 Aug 2013 22:15:02 -0400 From: Steven Rostedt <rostedt@...dmis.org> To: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com> Cc: Tom Zanussi <tom.zanussi@...ux.intel.com>, linux-kernel@...r.kernel.org, Oleg Nesterov <oleg@...hat.com> Subject: Re: [PATCH v4 00/11] tracing: trace event triggers On Thu, 2013-08-08 at 11:02 +0900, Masami Hiramatsu wrote: > # mkdir instances/hoge > # echo 'enable_event:mce:mce_record' > instances/hoge/events/syscalls/sys_enter_symlink/trigger > # cat instances/hoge/events/syscalls/sys_enter_symlink/enable > 0* > # cat instances/hoge/events/mce/mce_record/enable > 0 > # cat events/mce/mce_record/enable > 0* > # ln -sf /dev/null /tmp > # cat instances/hoge/events/mce/mce_record/enable > 0 > # cat events/mce/mce_record/enable > 1* > > This looks odd, I expected enabling mce/mce_record under instances/hoge. > > And, there is a bug of ftrace itself (not introduced by this series) I've found. > After the above operation, we can delete the instance "hoge", but the soft-mode > flag of mce_record is not cleared, even though there is no trigger referring > the event. > > # rmdir instances/hoge > # cat events/mce/mce_record/enable > 1* Ouch. I'll have to look into this. Thanks! > And also, could you rebase your patches on trace/for-next branch? > Since that branch includes most of the latest fixes, it is better to > review with it. Yeah, it would be good to rebase against that. I may finally have time to look into these patches. -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists