Bug 249823
| Summary: | p54pci driver has stopped working | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Hans de Goede <hdegoede> |
| Component: | kernel | Assignee: | John W. Linville <linville> |
| Status: | CLOSED RAWHIDE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | rawhide | CC: | cebbert, davej, nphilipp |
| Target Milestone: | --- | Keywords: | Patch, Reopened |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| URL: | http://marc.info/?l=linux-wireless&m=118833057313088&w=2 | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2007-09-29 08:15:50 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: | |||
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Description
Hans de Goede
2007-07-27 10:57:05 UTC
Look for "p54pci" -- the driver got renamed in wireless-dev. I added a MODULE_ALIAS line. Perhaps that is insufficient to avoid this -- I thought that was what it was for? Anyway, I presume the p54pci works alright for you? I read somewhere about the rename and already tried a modprobe p54pci, no joy, on my laptop neither module is there: [hans@localhost ~]$ cd /lib/modules/2.6.23-0.43.rc0.git16.fc8/ [hans@localhost 2.6.23-0.43.rc0.git16.fc8]$ find -name p54pci.ko [hans@localhost 2.6.23-0.43.rc0.git16.fc8]$ find -name prism54pci.ko [hans@localhost 2.6.23-0.43.rc0.git16.fc8]$ There isn't even a mac80211 directory under kernel/drivers/net/wireless Hmm, maybe I just hit a bad kernel? Updating to the latest ... installed 2.6.23-0.49.rc1.git3.fc8 ... which does include the driver ... but doesn't work. It associates and iwlist scan-s perfect, but it doesn't seem to send or receive any data, dhclient doesn't work nor pinging after manual ifconfig :( Shall I change the summary or do you want me to open a new bug for this? Okay, recycling the bug. I've been busy researching this and I have come to the following conclusions. 1) with the 2.6.20-2something F7-test kernel everything works fine build date 3 march, I can give you the exact revision if you want. 2) with the fc release kerkel (3194) things work, but the connection is often lost. 3) with the 2.6.23-0.49.rc1.git3.fc8, the card asociates and thats it. Using wireless git and out of tree driver building I've found that the following 2 patches are the culprits: Patch causing loose off connection within seconds when fully loading the link with a local file transfer: http://bu3sch.de/gitweb?p=wireless-dev.git;a=commitdiff;h=62ee473d67b7ae353d210b186abaadc37a642237 Only associating and nothing else: http://bu3sch.de/gitweb?p=wireless-dev.git;a=commitdiff;h=7d59453a9dbe50dc9bab846c410e39f8d5b10c83 And then specifically the changes to prism54common.c This is with an isl3886 cardbus card, using the p54pci driver. I think this is probably best handled upstream, if you agree just me let me know who's door to knock on / which mailinglist to join and start complaining on. Linville, I've spend a lot of time finding out exactly which changes in the p54pci driver have caused my regressions, some attention for this bug would be nice. Even if its just telling me the email of someone upstream to further discuss this with. I'm terribly sorry, Hans! Busy, busy...I'm sure you understand. I think you should open a thread on linux-wireless.org, and be sure to CC: Michael Wu <flamingice>. Thanks! Thanks, mail send upstream, closing this with a resolution of upstream. Thanks to Hans and various other people upstream, there are two patches which worked wonderfully(*) for me when applied to the current F-7 kernel source. (*): "wonderfully" as in "still occasionally loses link, but gets it back quickly". Hans, perhaps you can check this against the different versions you have? The relevant posting on linux-wireless can be found at: http://marc.info/?l=linux-wireless&m=118833057313088&w=2 The patches are: p54-pull-padding2.diff: http://marc.info/?l=linux-wireless&m=118833057313088&q=p3 p54-support-older-firmwares.diff http://marc.info/?l=linux-wireless&m=118833057313088&q=p4 They need to be applied in this order and have done so with only slight offset here (kernel-2.6.22.5-77.fc7). Therefore I'll reopen this one. John, if you think waiting until upstream does this officially (do they have a git repo available? -- didn't find one) is better, feel free to CLOSE/UPSTREAM it again but it'd be nice to have this in the next F7 kernel update. Sheesh, just noticed that this bug is for devel -- shall I clone this for F7? I've been keeping F7 mostly up-to-date with rawhide, and both mostly up-to-date with what I push upstream. So, I don't really think an F7 bug is necessary. Good. Now what do you think about having the patches for the Fedora driver? I've used a patched driver for some time now and it works rather well -- the odd dropped link but you don't notice it unless you happen to watch the card's lights. http://koji.fedoraproject.org/koji/buildinfo?buildID=19785 Please try the current rawhide kernels. Are they working better for you? Yes things now work as well as they used to (iow they work as well as one can expect when combining the cheapest AP on the planet with the cheapest wifi card in a neighborhood where almost every house has an AP and the houses are build side to side). Closing, and thanks! Same here with the current F7 kernel (2.6.22.7-85.fc7). |