Bug 10471
| Summary: | iwl3945 in 2.6.25 ignores state of hardware RF kill switch | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Thoralf Dassler (kdato) |
| Component: | network-wireless | Assignee: | drivers_network-wireless (drivers_network-wireless) |
| Status: | CLOSED PATCH_ALREADY_AVAILABLE | ||
| Severity: | normal | CC: | bunk, rl03, yi.zhu |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 2.6.25 | Subsystem: | |
| Regression: | Yes | Bisected commit-id: | |
|
Description
Thoralf Dassler
2008-04-17 14:17:50 UTC
Reply-To: akpm@linux-foundation.org (switched to email. Please respond via emailed reply-to-all, not via the bugzilla web interface). On Thu, 17 Apr 2008 14:17:51 -0700 (PDT) bugme-daemon@bugzilla.kernel.org wrote: > http://bugzilla.kernel.org/show_bug.cgi?id=10471 > > Summary: iwl3945 in 2.6.25 ignores state of hardware RF kill > switch > Product: Drivers > Version: 2.5 > KernelVersion: 2.6.25 > Platform: All > OS/Version: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: network-wireless > AssignedTo: drivers_network-wireless@kernel-bugs.osdl.org > ReportedBy: thoralf.dassler@gmail.com > > > Latest working kernel version: 2.6.24.3 (possibly 2.6.24.4, but have not had > it) > Earliest failing kernel version: 2.6.25 > Distribution: Slackware 12 > Hardware Environment: Toshiba Satellite P200 > Software Environment: n/a > Problem Description: With the 2.6.25 kernel, iwl3945 sees the state of the > hardware RF kill switch, but ignores the state. This causes long boot delays > because the adapter tries to make a connection when the switch is in the OFF > position. > > Steps to reproduce: > boot up the system; none of the following showed with 2.6.24.3 > > > messages during boot: > ----------------------------------- > SIOCSIFFLAGS: No such device > [3 lines of irrelevant output on my iwl3945] > SIOCSIFFLAGS: No such device > > > dmesg: > ----------- > ACPI: PCI Interrupt 0000:04:00.0[A] -> GSI 17 (level, low) -> IRQ 17 > PM: Writing back config space on device 0000:04:00.0 at offset 1 (was 100002, > writing 100006) > iwl3945: Radio disabled by HW RF Kill switch > [message repeated 7 more times] > Yeah, I got bitten by that too. Apparently it's deliberate and other wireless drivers will start to do the same thing soon. It's totally dumb that the initscritps pause *at all* when the kill switch is in "kill" mode. Hopefully one day userspace will get fixed (I assume the problem is in userspace). <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#ffffff" text="#000000"> Yeah, it seems dumb that the init scripts pause, but I don't understand why this started with the 2.6.25 kernel, whereas it was fine before.<br> <br> Andrew Morton wrote: <blockquote cite="mid:20080417142934.be2bdd27.akpm@linux-foundation.org" type="cite"> <pre wrap="">(switched to email. Please respond via emailed reply-to-all, not via the bugzilla web interface). On Thu, 17 Apr 2008 14:17:51 -0700 (PDT) <a class="moz-txt-link-abbreviated" href="mailto:bugme-daemon@bugzilla.kernel.org">bugme-daemon@bugzilla.kernel.org</a> wrote: </pre> <blockquote type="cite"> <pre wrap=""><a class="moz-txt-link-freetext" href="http://bugzilla.kernel.org/show_bug.cgi?id=10471">http://bugzilla.kernel.org/show_bug.cgi?id=10471</a> Summary: iwl3945 in 2.6.25 ignores state of hardware RF kill switch Product: Drivers Version: 2.5 KernelVersion: 2.6.25 Platform: All OS/Version: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: network-wireless AssignedTo: <a class="moz-txt-link-abbreviated" href="mailto:drivers_network-wireless@kernel-bugs.osdl.org">drivers_network-wireless@kernel-bugs.osdl.org</a> ReportedBy: <a class="moz-txt-link-abbreviated" href="mailto:thoralf.dassler@gmail.com">thoralf.dassler@gmail.com</a> Latest working kernel version: 2.6.24.3 (possibly 2.6.24.4, but have not had it) Earliest failing kernel version: 2.6.25 Distribution: Slackware 12 Hardware Environment: Toshiba Satellite P200 Software Environment: n/a Problem Description: With the 2.6.25 kernel, iwl3945 sees the state of the hardware RF kill switch, but ignores the state. This causes long boot delays because the adapter tries to make a connection when the switch is in the OFF position. Steps to reproduce: boot up the system; none of the following showed with 2.6.24.3 messages during boot: ----------------------------------- SIOCSIFFLAGS: No such device [3 lines of irrelevant output on my iwl3945] SIOCSIFFLAGS: No such device dmesg: ----------- ACPI: PCI Interrupt 0000:04:00.0[A] -> GSI 17 (level, low) -> IRQ 17 PM: Writing back config space on device 0000:04:00.0 at offset 1 (was 100002, writing 100006) iwl3945: Radio disabled by HW RF Kill switch [message repeated 7 more times] </pre> </blockquote> <pre wrap=""><!----> Yeah, I got bitten by that too. Apparently it's deliberate and other wireless drivers will start to do the same thing soon. It's totally dumb that the initscritps pause *at all* when the kill switch is in "kill" mode. Hopefully one day userspace will get fixed (I assume the problem is in userspace). </pre> </blockquote> <br> </body> </html> Reply-To: akpm@linux-foundation.org On Fri, 18 Apr 2008 09:52:46 +0000 Thoralf Da__ler <thoralf.dassler@gmail.com> wrote: > Yeah, it seems dumb that the init scripts pause, but I don't understand why > this started with the 2.6.25 kernel, whereas it was fine before. You have removed from Cc: the people who can explain it. I restored them. > Andrew Morton wrote:(switched to email. Please respond via emailed > reply-to-all, not via the > bugzilla web interface). > > > On Thu, 17 Apr 2008 14:17:51 -0700 (PDT) > bugme-daemon@bugzilla.kernel.org wrote: > > http://bugzilla.kernel.org/show_bug.cgi?id=10471 > On Fri, Apr 18, 2008 at 11:01 AM, Andrew Morton <akpm@linux-foundation.org> wrote: > On Fri, 18 Apr 2008 09:52:46 +0000 Thoralf Da__ler > <thoralf.dassler@gmail.com> wrote: > > > Yeah, it seems dumb that the init scripts pause, but I don't understand > why this started with the 2.6.25 kernel, whereas it was fine before. > > You have removed from Cc: the people who can explain it. I restored them. > > > Andrew Morton wrote:(switched to email. Please respond via emailed > reply-to-all, not via the > > > bugzilla web interface). iwl3945 was loading the ucode (firmware) during probe but then changed to do this on ifup. for 4965 this does not cause such problems because the rfkill state is reported via an interrupt; while for 3965 its an ucode event... no ucode means no ucode event ;) (but it should be able to read the current state after an ifup) First to address the subject of this bug, the driver does not ignore the state of the hardware RF kill switch. More below. On , Andrew Morton wrote: > On Thu, 17 Apr 2008 14:17:51 -0700 (PDT) > bugme-daemon@bugzilla.kernel.org wrote: > >> >> >> messages during boot: >> ----------------------------------- >> SIOCSIFFLAGS: No such device >> [3 lines of irrelevant output on my iwl3945] >> SIOCSIFFLAGS: No such device This is exactly the error returned by the driver when it detects that the hardware RF kill switch is set. With several message like above in your logs - could it be a user app that keeps trying to bring the interface up even when it returns an error? >> dmesg: >> ----------- >> ACPI: PCI Interrupt 0000:04:00.0[A] -> GSI 17 (level, low) -> IRQ 17 >> PM: Writing back config space on device 0000:04:00.0 at offset 1 >> (was 100002, writing 100006) iwl3945: Radio disabled by HW RF Kill >> switch [message repeated 7 more times] It is right after printing this message that the driver returns "ENODEV". From what I can tell the driver is doing the right thing. What is the expected behavior in this scenario? Reinette I have the same error. Slackware -current and Compaq 6710s > It's totally dumb that the initscritps pause *at all* when the kill switch > is in "kill" mode. Hopefully one day userspace will get fixed (I assume > the problem is in userspace). rf_kill value not change with 2.6.25 with 2.6.24.4 is all ok > With the 2.6.25 kernel, iwl3945 sees the state of the > hardware RF kill switch, but ignores the state. In my case RF kill switch state not change This should be fixed already. |