From: Masami Hiramatsu <mhiramat@kernel.org>
To: Ingo Molnar <mingo@redhat.com>
Cc: "Naveen N . Rao" <naveen.n.rao@linux.vnet.ibm.com>,
Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>,
"David S . Miller" <davem@davemloft.net>,
Masami Hiramatsu <mhiramat@kernel.org>,
linux-kernel@vger.kernel.org
Subject: [PATCH -tip v2 0/5] kprobes: Remove BUG_ON from kprobes
Date: Tue, 11 Sep 2018 19:18:43 +0900 [thread overview]
Message-ID: <153666112297.21306.4621579144717171778.stgit@devbox> (raw)
Hi,
Here are v2 patches to remove BUG_ON from kprobes.
Since BUG_ON() kills the machine, it must not be used
for debugging or assertion. These patches remove
meaningless BUG_ON or replace it with return errors.
In this version, I updated 5/5 to use WARN_ON_ONCE()
for unusual case, according to Ingo's comment.
Thank you,
---
Masami Hiramatsu (5):
kprobes: Remove meaningless BUG_ON from disarming process
kprobes: Remove meaningless BUG_ON from add_new_kprobe
kprobes: Remove meaningless BUG_ON from reuse_unused_kprobe
kprobes: Return error if fail to reuse kprobe instead of BUG_ON
kprobes: Don't call BUG_ON if there is a kprobe in use on free list
kernel/kprobes.c | 39 +++++++++++++++++++++++++++------------
1 file changed, 27 insertions(+), 12 deletions(-)
--
Masami Hiramatsu (Linaro) <mhiramat@kernel.org>
next reply other threads:[~2018-09-11 10:19 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-11 10:18 Masami Hiramatsu [this message]
2018-09-11 10:19 ` [PATCH -tip v2 1/5] kprobes: Remove meaningless BUG_ON from disarming process Masami Hiramatsu
2018-09-12 6:51 ` [tip:perf/core] kprobes: Remove pointless BUG_ON() " tip-bot for Masami Hiramatsu
2018-09-11 10:19 ` [PATCH -tip v2 2/5] kprobes: Remove meaningless BUG_ON from add_new_kprobe Masami Hiramatsu
2018-09-12 6:52 ` [tip:perf/core] kprobes: Remove pointless BUG_ON() from add_new_kprobe() tip-bot for Masami Hiramatsu
2018-09-11 10:20 ` [PATCH -tip v2 3/5] kprobes: Remove meaningless BUG_ON from reuse_unused_kprobe Masami Hiramatsu
2018-09-12 6:52 ` [tip:perf/core] kprobes: Remove pointless BUG_ON() from reuse_unused_kprobe() tip-bot for Masami Hiramatsu
2018-09-11 10:20 ` [PATCH -tip v2 4/5] kprobes: Return error if fail to reuse kprobe instead of BUG_ON Masami Hiramatsu
2018-09-12 6:53 ` [tip:perf/core] kprobes: Return error if we fail to reuse kprobe instead of BUG_ON() tip-bot for Masami Hiramatsu
2018-09-11 10:21 ` [PATCH -tip v2 5/5] kprobes: Don't call BUG_ON if there is a kprobe in use on free list Masami Hiramatsu
2018-09-12 6:54 ` [tip:perf/core] kprobes: Don't call BUG_ON() " tip-bot for Masami Hiramatsu
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