Bug 1458542

Summary: kernel: ICMP rate limiting is too aggressive on loopback
Product: [Fedora] Fedora Reporter: Florian Weimer <fweimer>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: rawhideCC: gansalmon, hongjiu.lu, ichavero, itamar, jbrouer, jonathan, kernel-maint, madhu.chinakonda, mchehab
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: 1461282 (view as bug list) Environment:
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Bug Blocks: 1461282    
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Description Flags
localhost-icmp.c none

Description Florian Weimer 2017-06-04 07:16:32 UTC 
Created attachment 1284717 [details]
localhost-icmp.c

Description of problem:

Aggressive ICMP rate limiting on the loopback interface causes test suite failures.

Version-Release number of selected component (if applicable):

kernel-4.11.3-200.fc25.x86_64

How reproducible:

Always.

Steps to Reproduce:
1. Compile localhost-icmp.c.
2. Run ./localhost-icmp

Actual results:

Test runs into a timeout:

localhost-icmp: iteration 50: no ICMP message (poll timeout)

Expected results:

Test completes within a few milliseconds.

Additional info:

https://sourceware.org/ml/libc-alpha/2017-06/msg00167.html
http://marc.info/?l=linux-netdev&m=149656032817085
Comment 1 Florian Weimer 2017-06-04 15:28:16 UTC 
*** Bug 1458586 has been marked as a duplicate of this bug. ***