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Opened 22 months ago

Last modified 22 months ago

#22234 new defect

irq 11: nobody cared (uart)

Reported by: sergiosmail Owned by: developers
Priority: normal Milestone:
Component: kernel Version: Trunk
Keywords: Cc: sergio.badalona@…

Description

Dear openwrt users

I'm wondering if someone has noticed of this issue using OpenWrt Bleeding Edge. From time to time my openwrt AR9331 box, freezes showing this message at the serial line:

[ 4570.018699] irq 11: nobody cared (try booting with the "irqpoll" option)
[ 4570.023972] CPU: 0 PID: 0 Comm: swapper Not tainted 4.1.16 #79
[ 4570.029772] Stack : 803bfe28 00000000 00000000 80410000 80407ad0 80407763 803a1ca4 00000000
80473514 00000000 803a56c4 803a56ec 80400000 800a6260 00000006 80490000
00000000 00000000 803a5520 80401c4c 804742b2 800a488c 00000405 00000000
00000000 801e9000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
...
[ 4570.065187] Call Trace:
[ 4570.067643] [<8007207c>] show_stack+0x50/0x84
[ 4570.071992] [<800a9038>] __report_bad_irq.isra.0+0x40/0xf4
[ 4570.077439] [<800a9388>] note_interrupt+0x228/0x2e4
[ 4570.082300] [<800a75dc>] handle_irq_event_percpu+0x154/0x188
[ 4570.087941] [<800a764c>] handle_irq_event+0x3c/0x60
[ 4570.092806] [<800a9ecc>] handle_level_irq+0xdc/0x120
[ 4570.097750] [<800a6e6c>] generic_handle_irq+0x2c/0x40
[ 4570.102800] [<8006a4f4>] ath79_misc_irq_handler+0xe8/0x120
[ 4570.108253] [<800a6e6c>] generic_handle_irq+0x2c/0x40
[ 4570.113285] [<8006eed8>] do_IRQ+0x1c/0x2c
[ 4570.117280] [<80060830>] ret_from_irq+0x0/0x4
[ 4570.121619] [<80060a80>] __r4k_wait+0x20/0x40
[ 4570.125961] [<800a19ec>] cpu_startup_entry+0x114/0x13c
[ 4570.131085] [<80425bc4>] start_kernel+0x464/0x484
[ 4570.135759] 
[ 4570.137234] handlers:
[ 4570.139507] [<801e8ca8>] ar933x_uart_interrupt
[ 4570.143920] Disabling IRQ #11

I've see similar issues but they concern to the wireless driver not the uart driver.

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