| Summary: | sky2 module problem | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Sergei LITVINENKO <sergei.litvinenko> |
| Component: | kernel | Assignee: | Kernel Maintainer List <kernel-maint> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 16 | CC: | fireblade1230, gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda, nhorman, sergei.litvinenko |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2011-12-14 12:01:47 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
|
Description
Sergei LITVINENKO
2011-11-14 19:05:06 UTC
bouncing over to kernel (assuming thats the intended component) Its not a critical failure, its just indicating that the hardware isn't checksumming your frames properly. You can disable it with: ethtool -K eth0 rx off tx off Does this happen with all your sky2 devices, or just this one? It may just be broken >> Does this happen with all your sky2 devices, or just this one?
>> It may just be broken
I have only one sky2 network card.
Usually card work as expected.
Errors there are in log, but not very often
---
Nov 19 21:34:39 homedesk kernel: [ 5247.406943] Pid: 0, comm: kworker/0:0 Tainted: P 3.1.1-1.fc16.i686.PAE #1
Nov 19 21:34:39 homedesk kernel: [ 5247.406946] Call Trace:
Nov 19 21:34:39 homedesk kernel: [ 5247.406954] [<c082001f>] ? printk+0x2d/0x2f
Nov 19 21:34:39 homedesk kernel: [ 5247.406959] [<c0763bc3>] netdev_rx_csum_fault+0x36/0x3b
Nov 19 21:34:39 homedesk kernel: [ 5247.406963] [<c075e787>] __skb_checksum_complete_head+0x4c/0x5f
Nov 19 21:34:39 homedesk kernel: [ 5247.406967] [<c075e7aa>] __skb_checksum_complete+0x10/0x12
...
---
I'm in similar situation too. I can stop logging call trace with: ethtool -K eth0 rx off And no call trace shown in 6 days. But, I'm wondering on 4 points: 1. /sbin/ifconfig eth0 shows neither error nor dropped packets while call trace is logged every few minutes. 2. All call trace include [bridge] routines. 3. Early 3.0.x and 2.6.x kernels don't cause stack trace. 4. I configured a software bridge by openvpn. But, after I stop openvpn bridge service, call trace is not logged. --- Nov 26 22:38:33 server1 kernel: [555335.265318] eth0: hw csum failure. Nov 26 22:38:33 server1 kernel: [555335.265327] Pid: 0, comm: swapper Tainted: P 2.6.41.1-1.fc15.i686.PAE #1 Nov 26 22:38:33 server1 kernel: [555335.265333] Call Trace: Nov 26 22:38:33 server1 kernel: [555335.265344] [<c0807fa7>] ? printk+0x2d/0x2f Nov 26 22:38:33 server1 kernel: [555335.265353] [<c0775c54>] netdev_rx_csum_fault+0x36/0x3b Nov 26 22:38:33 server1 kernel: [555335.265365] [<c0770817>] __skb_checksum_complete_head+0x4c/0x5f Nov 26 22:38:33 server1 kernel: [555335.265375] [<c077083a>] __skb_checksum_complete+0x10/0x12 Nov 26 22:38:33 server1 kernel: [555335.265406] [<fa76bb80>] br_multicast_rcv+0x7d2/0xc44 [bridge] ... --- (Supplimental Information to comment #4) > 4. > I configured a software bridge by openvpn. But, after I stop openvpn bridge > service, call trace is not logged. The openvpn service is starting as a server only but not connected. It's only waiting to connection from clients. But call traces are logged every few minutes. I finally upgraded to Fedora 16, and changed the way to create bridge device while booting. It's same way that Sergei showed us. And I tested again. Of course HW checksum is turned on. When I use kernel 3.1.4-1.fc16.i686.PAE, Call Traces are logged while openvpn is connected and bridging every fiew minutes. But, No Call Traces are logged while openvpn is only waiting connections. It differs from what I reported before. When I use kernel 3.1.5-1.fc16.i686.PAE, No Call Traces are logged while openvpn is connected and bridging. I had tested more than 12 hours. About my system, the problem was solved. Thank you. |