On 08/07/2010 07:21 PM, Daniel Mack wrote: > Hi, > > we're having problems using an ath5k-based mini-PCI card on a mainboard > with a Geode CS5535 chipset. Below is the output generated by 2.6.35 > vanilla, the first block is reported at boot time, the second one some > seconds later. > > Don't know if this has been reported before, but at least I couldn't > find anything in recent LKML postings. > > > Thanks, > Daniel > > > [ 2.142771] ath5k 0000:00:0c.0: guessed PCI INT A -> IRQ 9 > [ 2.148319] ath5k 0000:00:0c.0: sharing IRQ 9 with 0000:00:01.2 > [ 2.154548] ath5k 0000:00:0c.0: registered as 'phy0' > [ 3.126593] irq 9: nobody cared (try booting with the "irqpoll" option) > [ 3.130015] Pid: 1, comm: swapper Not tainted 2.6.35+ #1 > [ 3.130015] Call Trace: > [ 3.130015] [<c013e984>] __report_bad_irq+0x2e/0x6f > [ 3.130015] [<c013eab5>] note_interrupt+0xf0/0x147 > [ 3.130015] [<c013f076>] handle_level_irq+0x6d/0x99 > [ 3.130015] [<c0103bf6>] handle_irq+0x1a/0x20 > [ 3.130015] [<c0103810>] do_IRQ+0x33/0x88 > [ 3.130015] [<c0102a69>] common_interrupt+0x29/0x30 > [ 3.130015] [<c0120e3c>] ? __do_softirq+0x34/0xca > [ 3.130015] [<c0120ef7>] do_softirq+0x25/0x2a > [ 3.130015] [<c0120fb7>] irq_exit+0x28/0x57 > [ 3.130015] [<c0103850>] do_IRQ+0x73/0x88 > [ 3.130015] [<c0102a69>] common_interrupt+0x29/0x30 > [ 3.130015] [<c013007b>] ? __async_schedule+0x38/0xe9 > [ 3.130015] [<c013e420>] ? __setup_irq+0x1d8/0x259 > [ 3.130015] [<c013e544>] request_threaded_irq+0xa3/0xd0 > [ 3.130015] [<c02486e5>] ? ath5k_intr+0x0/0x28b > [ 3.130015] [<c032e15c>] ath5k_pci_probe+0x2f4/0x13c5 The interrupt came right after enabled in probe function with ATH_STAT_INVALID still set. Is this really a 2.6.34 regression? The only difference I see that we now (in .35) use MIB interrrupts. > [ 3.130015] handlers: > [ 3.130015] [<c02486e5>] (ath5k_intr+0x0/0x28b) > [ 3.130015] Disabling IRQ #9 > [ 4.014683] ath5k phy0: Atheros AR5414 chip found (MAC: 0xa5, PHY: 0x61) > > [...] > > [ 13.510198] BUG: unable to handle kernel NULL pointer dereference at 0000009b > [ 13.517396] IP: [<c1138a54>] ath5k_hw_is_intr_pending+0x1/0x19 > [ 13.520166] *pde = 00000000 > [ 13.520166] Oops: 0000 [#1] > [ 13.520166] last sysfs file: > [ 13.520166] Modules linked in: > [ 13.520166] > [ 13.520166] Pid: 0, comm: swapper Not tainted 2.6.34 #1 / > [ 13.520166] EIP: 0060:[<c1138a54>] EFLAGS: 00010046 CPU: 0 > [ 13.520166] EIP is at ath5k_hw_is_intr_pending+0x1/0x19 > [ 13.520166] EAX: ffffffff EBX: cf9289a0 ECX: c12f5f24 EDX: cf9289a0 > [ 13.520166] ESI: c1303920 EDI: ffffffff EBP: c12f5ee4 ESP: c12f5e98 > [ 13.520166] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 > [ 13.520166] Process swapper (pid: 0, ti=c12f4000 task=c12fa300 task.ti=c12f4000) > [ 13.520166] Stack: > [ 13.520166] c12f5ee4 c1143674 00000082 c12f5eb4 c103df6b 00000000 00000030 c12f5ec0 > [ 13.520166] <0> c12f5ec0 c10201ff c12f5ed8 c100393c c12f5f88 cfbdba00 00000001 c141e080 > [ 13.520166] <0> cfbe1de0 c1303920 00000000 c12f5efc c103d773 00000009 00000009 c141e080 > [ 13.520166] Call Trace: > [ 13.520166] [<c1143674>] ? ath5k_intr+0x25/0x1f5 This is from .34. However I don't understand how this can happen. It means that sc->ah is -25. But this cannot be true as sc->ah = kzalloc. "Code:" line would be helpful too. Does the "nobody cared" appear in .34 too? thanks, -- js -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
