Bug 16204 - 2.6.35-rc3 regression linked to 597a264b1a9c7e36d1728f677c66c5c1f7e3b837
Summary: 2.6.35-rc3 regression linked to 597a264b1a9c7e36d1728f677c66c5c1f7e3b837
Status: CLOSED CODE_FIX
Alias: None
Product: Networking
Classification: Unclassified
Component: Other (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: Arnaldo Carvalho de Melo
URL:
Keywords:
Depends on:
Blocks: 16055
  Show dependency tree
 
Reported: 2010-06-14 12:27 UTC by Michael S. Tsirkin
Modified: 2010-06-14 14:21 UTC (History)
2 users (show)

See Also:
Kernel Version: 2.6.35-rc3
Tree: Mainline
Regression: Yes


Attachments
.config of the kernel in question (78.13 KB, application/octet-stream)
2010-06-14 12:29 UTC, Michael S. Tsirkin
Details
bisect log (1.44 KB, application/octet-stream)
2010-06-14 12:34 UTC, Michael S. Tsirkin
Details
script to bring up tap interface (74 bytes, application/octet-stream)
2010-06-14 13:15 UTC, Michael S. Tsirkin
Details
script to run qemu (567 bytes, application/octet-stream)
2010-06-14 13:15 UTC, Michael S. Tsirkin
Details

Description Michael S. Tsirkin 2010-06-14 12:27:12 UTC
I am using qemu with both tap and slirp (userspace) networking.
This works fine under 2.6.35-rc2 but breaks under 2.6.35-rc3:
ssh over slirp stops working sometimes right away
and sometimes after a bit of use.

Git bisect gave me this commit: 597a264b1a9c7e36d1728f677c66c5c1f7e3b837.

Reverting 597a264b1a9c7e36d1728f677c66c5c1f7e3b837 fixes the issue
for me.
Comment 1 Michael S. Tsirkin 2010-06-14 12:29:01 UTC
Created attachment 26762 [details]
.config of the kernel in question
Comment 2 Michael S. Tsirkin 2010-06-14 12:34:18 UTC
Created attachment 26763 [details]
bisect log
Comment 3 Michael S. Tsirkin 2010-06-14 13:15:14 UTC
Created attachment 26764 [details]
script to bring up tap interface
Comment 4 Michael S. Tsirkin 2010-06-14 13:15:47 UTC
Created attachment 26765 [details]
script to run qemu
Comment 5 Rafael J. Wysocki 2010-06-14 13:59:11 UTC
Caused by:

commit 597a264b1a9c7e36d1728f677c66c5c1f7e3b837
Author: John Fastabend <john.r.fastabend@intel.com>
Date:   Thu Jun 3 09:30:11 2010 +0000

    net: deliver skbs on inactive slaves to exact matches

    Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
    Signed-off-by: David S. Miller <davem@davemloft.net>

First-Bad-Commit : 597a264b1a9c7e36d1728f677c66c5c1f7e3b837
Comment 6 Rafael J. Wysocki 2010-06-14 14:01:29 UTC
A couple of notes.  First, the title of your report is meaningless (at least,
please say _what_ regression).  Second, providing a commit hash alone is not
really helpful.  Finally, this probably is a duplicate.
Comment 7 Michael S. Tsirkin 2010-06-14 14:14:16 UTC
fixed by commit
e897082fe7a5b591dc4dd5599ac39081a7c8e482

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