From: Timo Juhani Lindfors <timo.lindfors@iki.fi>
To: systemtap@sourceware.org
Cc: Timo Juhani Lindfors <timo.lindfors@iki.fi>
Subject: [PATCH] blacklist more unsafe functions
Date: Thu, 28 Feb 2013 16:24:00 -0000 [thread overview]
Message-ID: <1362068680-26595-1-git-send-email-timo.lindfors@iki.fi> (raw)
These were found empirically. Some of the functions look innocent but
they are called from functions marked with __kprobes so they still
cause crashes. Further analysis is available at
https://lkml.org/lkml/2013/2/27/82 ("kprobing "hash_64.constprop.26"
crashes the system, recursion through get_kprobe?").
---
dwflpp.cxx | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/dwflpp.cxx b/dwflpp.cxx
index 915e286..41a57c2 100644
--- a/dwflpp.cxx
+++ b/dwflpp.cxx
@@ -3424,6 +3424,11 @@ dwflpp::build_blacklist()
blfn += "|test_ti_thread_flag.*";
blfn += "|inat_get_opcode_attribute";
blfn += "|system_call_after_swapgs";
+ blfn += "|HYPERVISOR_[gs]et_debugreg";
+ blfn += "|HYPERVISOR_event_channel_op";
+ blfn += "|hash_64";
+ blfn += "|hash_ptr";
+ blfn += "|native_set_pte";
// Lots of locks
blfn += "|.*raw_.*_lock.*";
--
1.7.2.5
reply other threads:[~2013-02-28 16:24 UTC|newest]
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