Bug 698978
| Summary: | Slow WiFi connection on Fedora 15 with ath9k driver | ||||||||||
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| Product: | [Fedora] Fedora | Reporter: | Martin Kaeser <bmkaeser> | ||||||||
| Component: | kernel | Assignee: | Neil Horman <nhorman> | ||||||||
| Status: | CLOSED NEXTRELEASE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||||||
| Severity: | unspecified | Docs Contact: | |||||||||
| Priority: | unspecified | ||||||||||
| Version: | 15 | CC: | dan, dcbw, gansalmon, itamar, jklimes, jonathan, kernel-maint, madhu.chinakonda, nhorman, pranayama111, sassmann | ||||||||
| 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: | 2011-05-02 19:56:09 UTC | Type: | --- | ||||||||
| Regression: | --- | Mount Type: | --- | ||||||||
| Documentation: | --- | CRM: | |||||||||
| Verified Versions: | Category: | --- | |||||||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||||||
| Embargoed: | |||||||||||
| Attachments: |
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Description
Martin Kaeser
2011-04-22 13:49:01 UTC
That is probably a driver issue. Please, report: 1. your kernel version 2. nm-tool output 3. dmesg 4. iwevent output when connecting/connected Also look at /var/log/messages whether the connection is stable or periodically disconnects/reconnects. Is it an issue only with 802.11n or with 802.11bg as well? Created attachment 495619 [details]
dmesg
Comment on attachment 495619 [details]
dmesg
2.6.38.3-18.fc15.x86_64
Created attachment 495620 [details]
nm-tool
Created attachment 495621 [details]
iwevent
acer one 721 according to Windows 7: AR5B93 But Linux: Atheros Communications Inc. AR928X Wireless Network Adapter (PCI-Express) (rev 01) 06:00.0 Network controller [0280]: Atheros Communications Inc. AR928X Wireless Network Adapter (PCI-Express) [168c:002a] (rev 01) Subsystem: Foxconn International, Inc. Device [105b:e01f] Flags: bus master, fast devsel, latency 0, IRQ 17 Memory at d0300000 (64-bit, non-prefetchable) [size=64K] Capabilities: [40] Power Management version 2 Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [60] Express Legacy Endpoint, MSI 00 Capabilities: [90] MSI-X: Enable- Count=1 Masked- Capabilities: [100] Advanced Error Reporting Capabilities: [140] Virtual Channel Capabilities: [160] Device Serial Number 00-00-00-00-00-00-00-00 Kernel driver in use: ath9k Kernel modules: ath9k same problem with USB DWA-160: 802.11n-WLAN-Modul Realtek RTL8191SU. It is so slow that I can't use it. It appears to be a regression in ath9k driver in kernel 2.6.38. It's been fixed in 2.6.39, I think. You can try a workaround: # rmmod ath9k # modprobe ath9k nohwcrypt=1 Kernel upstream bug: https://bugzilla.kernel.org/show_bug.cgi?id=31452 Other bugs: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/761176 https://bugs.launchpad.net/archlinux/+source/linux/+bug/735171 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=622753 the workaround seems to work for the pci-express; not for the USB DWA-160 from D-Link.(In reply to comment #7) > It appears to be a regression in ath9k driver in kernel 2.6.38. It's been fixed > in 2.6.39, I think. > > You can try a workaround: > # rmmod ath9k > # modprobe ath9k nohwcrypt=1 > > Kernel upstream bug: > https://bugzilla.kernel.org/show_bug.cgi?id=31452 > > Other bugs: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/761176 > https://bugs.launchpad.net/archlinux/+source/linux/+bug/735171 > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=622753 *** Bug 699224 has been marked as a duplicate of this bug. *** looks like the requested patch has already been applied to the 2.6.38-5 kernel *** Bug 682561 has been marked as a duplicate of this bug. *** |