* [Bug 1215] Hotplug sigbus handler is using signal unsafe calls
@ 2023-04-13 2:34 bugzilla
0 siblings, 0 replies; only message in thread
From: bugzilla @ 2023-04-13 2:34 UTC (permalink / raw)
To: dev
[-- Attachment #1: Type: text/plain, Size: 1000 bytes --]
https://bugs.dpdk.org/show_bug.cgi?id=1215
Bug ID: 1215
Summary: Hotplug sigbus handler is using signal unsafe calls
Product: DPDK
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: minor
Priority: Normal
Component: core
Assignee: dev@dpdk.org
Reporter: stephen@networkplumber.org
Target Milestone: ---
The sigbus_handler() in lib/eal/linux/eal_dev.c is using many direct library
calls and DPDK API's that are not safe to be used in a signal handler.
Unsafe routines include RTE_LOG() uses sprintf and syslog. etc..
It is also possible that failure_handle_lock could deadlock if called during a
change of state by other thread.
The safer way would be to use signalfd() and a monitoring thread.
Handling signals in Linux and BSD is hard.
--
You are receiving this mail because:
You are the assignee for the bug.
[-- Attachment #2: Type: text/html, Size: 2879 bytes --]
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2023-04-13 2:34 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-04-13 2:34 [Bug 1215] Hotplug sigbus handler is using signal unsafe calls bugzilla
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).