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Bug #64788

open

EpollDriver::del_event() crashes when the nic is unplugged

Added by Kefu Chai 2 months ago. Updated 2 months ago.

Status:
Fix Under Review
Priority:
Normal
Assignee:
Kefu Chai
Category:
-
Target version:
-
% Done:

0%

Source:
Tags:
Backport:
quincy,reef,squid
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Component(RADOS):
Messenger
Pull request ID:
56034
Crash signature (v1):
Crash signature (v2):

Description

librbd uses msgr to talk to its Ceph cluster. if the client's nic is hot unplugged, there is chance that EpollDriver::del_event() crashes because epoll_ctl(epfd, EPOLL_CTL_DEL, fd, &……) returns -ENOENT. as its caller, EventCenter::delete_file_event() considers its a signal of a bug.

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