On Sunday 10 June 2007 15:17, Ingo Molnar wrote: > -rt11 is a bit more experimental than usual: it includes the CFS > scheduler.
Great! Finally CFS is included ;) Right now I'm using a patched kernel (2.6.21.4) with realtime-preemption patch and it works fine but I noticed something that I think you should know. There's a problem with mac80211. I'm using "mac80211-8.0.1" and "iwlwifi-0.0.25" driver with my "Intel Pro Wireless 3945ABG" card. When loading the "iwl3945" module or when an application (like wpa_supplicant, dhcpcd...) tries to do something with the card, I get this message in dmesg: BUG: using smp_processor_id() in preemptible [00000000] code: wpa_supplicant/11659 caller is ieee80211_set_multicast_list+0x40/0x163 [mac80211] [<c0213b1d>] debug_smp_processor_id+0xad/0xb0 [<f8e860bc>] ieee80211_set_multicast_list+0x40/0x163 [mac80211] [<c02e8532>] __dev_mc_upload+0x22/0x23 [<c02e8686>] dev_mc_upload+0x24/0x37 [<c02e52f5>] dev_change_flags+0x26/0xf6 [<c031fc5e>] devinet_ioctl+0x539/0x6aa [<c02db972>] sock_ioctl+0xa2/0x1d5 [<c02db8d0>] sock_ioctl+0x0/0x1d5 [<c018500f>] do_ioctl+0x1f/0x6d [<c01850ad>] vfs_ioctl+0x50/0x273 [<c0185304>] sys_ioctl+0x34/0x50 [<c01040c6>] sysenter_past_esp+0x5f/0x85 [<c0340000>] pfkey_add+0x7c7/0x8d9 ======================= --------------------------- | preempt count: 00000001 ] | 1-level deep critical section nesting: ---------------------------------------- .. [<c0213ac4>] .... debug_smp_processor_id+0x54/0xb0 .....[<00000000>] .. ( <= _stext+0x3fefed0c/0xc) Anyway, the wifi card works fine. I got rid of this message by commenting the code of the function "ieee80211_set_multicast_list()" that's on "net/mac80211/ieee80211.c" but this isn't a proper fix. I think you should know about this because kernel 2.6.22 already includes mac80211. Greetings. -- Miguel Botón - 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/
