On Tue, 2005-02-01 at 16:47 -0800, Pete Popov wrote: > Josh Green wrote: > > I'm using the latest Linux MIPS CVS (2.6.11-rc2) on an AMD Alchemy > > DB1100 with a tool chain created with buildroot (gcc 3.4.3, binutils > > 2.15.91.0.2) and found a bug in drivers/pcmcia/au1000_generic.c that was > > causing the following error during initialization (not exact text, close > > as I can remember), and subsequently the PCMCIA hardware was unavailable > > (pcmcia_register_socket() was failing due to NULL resource_opts field). > > > > au1x00_pcmcia: probe of au1x00-pcmcia0 failed with error -22 > > Interesting. I haven't seen this problem with a slightly older kernel. > http://www.linux-mips.org/cvsweb/linux/drivers/pcmcia/cs.c.diff?r1=1.51&r2=1.52&f=h The change around Line 212 looks like the reason. <cut> > Pete > I'm still looking into those other problems. I found another issue though, which I'm unsure of the exact cause (seems related to hostap module). I get this from time to time: Badness in local_bh_enable at kernel/softirq.c:140 Call Trace: [<802482c4>] skb_clone+0x24/0x374 [<8012c3c8>] local_bh_enable+0x74/0x9c [<80251048>] dev_queue_xmit+0x310/0x374 [<80249884>] kfree_skbmem+0x14/0x30 [<c0064438>] hostap_data_start_xmit+0x80c/0xac4 [hostap] [<8024866c>] alloc_skb+0x58/0xf4 [<802a1240>] arp_constructor+0x28/0x274 [<802a0000>] udp_rcv+0x368/0x938 [<80250e14>] dev_queue_xmit+0xdc/0x374 [<80360000>] ip_auto_config_setup+0x64/0x240 [<802a2944>] arp_process+0x7f8/0xa6c [<c0062b20>] hostap_80211_rx+0x1034/0x1f04 [hostap] [<80251978>] netif_receive_skb+0x1c4/0x3d4 [<80251978>] netif_receive_skb+0x1c4/0x3d4 [<80251c98>] process_backlog+0x110/0x2f0 [<80250000>] dev_change_name+0x34/0x2ec [<c003f96c>] hostap_rx_tasklet+0x228/0x2bc [hostap_cs] [<80251f44>] net_rx_action+0xcc/0x294 [<8012c818>] tasklet_action+0xc4/0x194 [<801479f4>] handle_IRQ_event+0x7c/0x134 [<8012c1dc>] __do_softirq+0x8c/0x14c [<80147c40>] __do_IRQ+0x194/0x1b4 [<80360000>] ip_auto_config_setup+0x64/0x240 [<80360000>] ip_auto_config_setup+0x64/0x240 [<8012c328>] do_softirq+0x8c/0xb8 [<80360000>] ip_auto_config_setup+0x64/0x240 [<80100e2c>] au1000_IRQ+0x16c/0x1a0 [<80360000>] ip_auto_config_setup+0x64/0x240 [<80104a90>] cpu_idle+0x48/0x50 [<80104a60>] cpu_idle+0x18/0x50 [<801f4980>] idr_cache_ctor+0x0/0xc [<80360000>] ip_auto_config_setup+0x64/0x240 [<803437ac>] start_kernel+0x200/0x2c0 [<803430fc>] unknown_bootoption+0x0/0x310 Might not be a MIPS related problem though. Seems line 140 is "WARN_ON(irqs_disabled());" which is at the beginning of local_bh_enable. Cheers. Josh Green
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