"scheduling while atomic" ?

Hi LKML, What does the message saying "scheduling while atomic" mean? The kernel prints a stack backtrace after this message appears so I suppose this is not a good behaviour. I am finishing an open source driver, and I need to do all of this locking stuff, etc. and this really makes me wonder wh

Re: "scheduling while atomic" ?

>When you say enable a lock, do you mean that you grabbed a lock? Now if >you grabbed a spinlock, it is really bad to then call schedule, since a >another process that will grab that same spinlock will deadlock the CPU >(on an SMP system). Since you are using locks (I'm also assuming that >you ar

Re: "scheduling while atomic" ?

Steven Rostedt wrote: >I assume that you call register_netdev in your module. Since this was >running insmod, this is probably called from the module_init. So what >reason do you have a lock from beginning to end? Looking at this, you >can't call register_netdev while holding a spin_lock since it

broadcom 4401 stopped working

Hi list readers For those who do not track netdev list a quick recap I fetched latest netdev tree ieee80211 branch and my broadcom 4401 network card stopped working. I had some time recently and ran few tests. Compiling kernel without ACPI support didn't help a lot, though compiling without any

Re: Atheros and rt2x00 driver

k in progress located at http://mateusz.agrest.org/atheros/ /M -- @..@ Mateusz Berezecki () [EMAIL PROTECTED] http://mateusz.agrest.org ( >__< ) PGP: 5F1C 86DF 89DB BFE9 899E 8CBE EB60 B7A7 43F9 5808 ^^ ~~ ^^ signature.asc Description: Digital signature

Linux 2.6 context switching and posix threads performance question

ching contexts ? I'm asking for some kind of an authoritative answer quite urgently. What is the optimum thread amount on 2 CPU SMP system running Linux ? Thank you very much in advance Mateusz -- @..@ Mateusz Berezecki () [EMAIL PROTECTED] http://mateusz.agrest.org ( >__<

Re: Atheros and rt2x00 driver

ontradict what I wrote above) Mateusz -- @..@ Mateusz Berezecki () [EMAIL PROTECTED] http://mateusz.agrest.org ( >__< ) PGP: 5F1C 86DF 89DB BFE9 899E 8CBE EB60 B7A7 43F9 5808 ^^ ~~ ^^ pgplydDdLwZGR.pgp Description: PGP signature

Re: Atheros and rt2x00 driver

ave been due to the update schedule of madwifi. It is always easier to be up to date with the vendor supported driver than with reverse engineered one. Anyways what I saw was that some parts were missing in openbsd. I don't know how much in overall. Mateusz -- @..@ Mateusz

Re: Atheros and rt2x00 driver

d at http://www.ath-driver.org As I'm going to put separate patch snapshots out there too, I will change the naming order. Mateusz -- @..@ Mateusz Berezecki () [EMAIL PROTECTED] http://mateusz.agrest.org ( >__< ) PGP: 5F1C 86DF 89DB BFE9 899E 8CBE EB60 B7A7 43F9 5808 ^^ ~~ ^^ pgpezVPyXHHNl.pgp Description: PGP signature

netdev branch - kernel panic - bug in tcp_time_to_recover ?

later in the evening as I'm in hurry now. kind regards, Mateusz -- @..@ Mateusz Berezecki () [EMAIL PROTECTED] http://mateusz.agrest.org ( >__< ) PGP: 5F1C 86DF 89DB BFE9 899E 8CBE EB60 B7A7 43F9 5808 ^^ ~~ ^^ pgpjf971nnfrl.pgp Description: PGP signature

Atheros wi-fi card drivers (?)

included into kernel source ? regards Mateusz Berezecki - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/

Re: Atheros wi-fi card drivers (?)

> A different one than the one that's supported by OpenBSD's reverse-engineered > HAL? I guess so :-) -- Mateusz Berezecki <[EMAIL PROTECTED]> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECT

PCI bus mastering question

Hello dear list readers, I've been googling on the topic for a couple of minutes and I got some question. If PCI bus mastering means the device gets the control over the bus and does all device voodoo is it possible to achieve the same effects without using mastering? To be more specific: if the