* genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus)
@ 2016-04-02 10:35 Dmitry Vyukov
2016-04-04 7:55 ` Jiri Slaby
0 siblings, 1 reply; 3+ messages in thread
From: Dmitry Vyukov @ 2016-04-02 10:35 UTC (permalink / raw)
To: Arve Hjønnevåg, Greg Kroah-Hartman, devel, LKML,
Jiri Slaby
Hello,
After updating from 8e0f93cda48ed054e1216bab5c60017e1a5fc1e8 to
05cf8077e54b20dddb756eaa26f3aeb5c38dd3cf (Apr 1) I've started seeing
the following warnings:
genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus)
CPU: 3 PID: 6626 Comm: init Tainted: G W 4.6.0-rc1+ #338
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
ffffffff87eb26a0 ffff88003da17618 ffffffff82c8ea9f ffffffff86f0c740
fffffbfff0fd64d4 ffff88003e8a6aa8 ffff88005eb4c4c8 00000000fffffff0
ffffffff874f6be0 ffff880034ae63a8 ffff88003da17708 ffffffff8149e73c
Call Trace:
[< inline >] __dump_stack lib/dump_stack.c:15
[<ffffffff82c8ea9f>] dump_stack+0x12e/0x18f lib/dump_stack.c:51
[<ffffffff8149e73c>] __setup_irq+0x11fc/0x1610 kernel/irq/manage.c:1369
[<ffffffff8149ef55>] request_threaded_irq+0x275/0x410 kernel/irq/manage.c:1652
[< inline >] request_irq include/linux/interrupt.h:147
[< inline >] serial_link_irq_chain
drivers/tty/serial/8250/8250_core.c:220
[<ffffffff830cc4bb>] univ8250_setup_irq+0x6fb/0x8a0
drivers/tty/serial/8250/8250_core.c:347
[<ffffffff830d6ec7>] serial8250_do_startup+0x537/0x18c0
drivers/tty/serial/8250/8250_port.c:2179
[<ffffffff830d82a9>] serial8250_startup+0x59/0x70
drivers/tty/serial/8250/8250_port.c:2288
[< inline >] uart_port_startup drivers/tty/serial/serial_core.c:163
[<ffffffff830c274b>] uart_startup.part.17+0x21b/0x640
drivers/tty/serial/serial_core.c:208
[< inline >] uart_startup drivers/tty/serial/serial_core.c:1627
[<ffffffff830c512e>] uart_open+0x31e/0x3c0
drivers/tty/serial/serial_core.c:1619
[<ffffffff83051608>] tty_open+0x2c8/0x1140 drivers/tty/tty_io.c:2131
[<ffffffff81805baa>] chrdev_open+0x22a/0x4c0 fs/char_dev.c:388
[<ffffffff817f1282>] do_dentry_open+0x6a2/0xcb0 fs/open.c:736
[<ffffffff817f495b>] vfs_open+0x17b/0x1f0 fs/open.c:853
[< inline >] do_last fs/namei.c:3238
[<ffffffff8182d1fb>] path_openat+0x51bb/0x5ce0 fs/namei.c:3374
[<ffffffff8183139e>] do_filp_open+0x18e/0x250 fs/namei.c:3409
[<ffffffff817f50dc>] do_sys_open+0x1fc/0x420 fs/open.c:1020
[< inline >] SYSC_open fs/open.c:1038
[<ffffffff817f532d>] SyS_open+0x2d/0x40 fs/open.c:1033
[<ffffffff867c6280>] entry_SYSCALL_64_fastpath+0x23/0xc1
arch/x86/entry/entry_64.S:207
They appear after boot every 10 seconds.
I am using qemu. Here are GOLDFISH related .config values:
CONFIG_GOLDFISH=y
# CONFIG_X86_GOLDFISH is not set
CONFIG_KEYBOARD_GOLDFISH_EVENTS=y
CONFIG_GOLDFISH_TTY=y
CONFIG_BATTERY_GOLDFISH=y
CONFIG_FB_GOLDFISH=y
CONFIG_MMC_GOLDFISH=y
CONFIG_GOLDFISH_AUDIO=y
CONFIG_MTD_GOLDFISH_NAND=y
CONFIG_GOLDFISH_BUS=y
CONFIG_GOLDFISH_PIPE=y
Is it a known issue? How can it be fixed?
Thanks
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus)
2016-04-02 10:35 genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus) Dmitry Vyukov
@ 2016-04-04 7:55 ` Jiri Slaby
2016-04-04 8:06 ` Dmitry Vyukov
0 siblings, 1 reply; 3+ messages in thread
From: Jiri Slaby @ 2016-04-04 7:55 UTC (permalink / raw)
To: Dmitry Vyukov, devel, arve, Greg Kroah-Hartman, LKML
On 04/02/2016, 12:35 PM, Dmitry Vyukov wrote:
> Hello,
>
> After updating from 8e0f93cda48ed054e1216bab5c60017e1a5fc1e8 to
> 05cf8077e54b20dddb756eaa26f3aeb5c38dd3cf (Apr 1) I've started seeing
> the following warnings:
>
> genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus)
> CPU: 3 PID: 6626 Comm: init Tainted: G W 4.6.0-rc1+ #338
> Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
> ffffffff87eb26a0 ffff88003da17618 ffffffff82c8ea9f ffffffff86f0c740
> fffffbfff0fd64d4 ffff88003e8a6aa8 ffff88005eb4c4c8 00000000fffffff0
> ffffffff874f6be0 ffff880034ae63a8 ffff88003da17708 ffffffff8149e73c
> Call Trace:
> [< inline >] __dump_stack lib/dump_stack.c:15
> [<ffffffff82c8ea9f>] dump_stack+0x12e/0x18f lib/dump_stack.c:51
> [<ffffffff8149e73c>] __setup_irq+0x11fc/0x1610 kernel/irq/manage.c:1369
> [<ffffffff8149ef55>] request_threaded_irq+0x275/0x410 kernel/irq/manage.c:1652
> [< inline >] request_irq include/linux/interrupt.h:147
...
> They appear after boot every 10 seconds.
> I am using qemu. Here are GOLDFISH related .config values:
>
> CONFIG_GOLDFISH=y
> # CONFIG_X86_GOLDFISH is not set
> CONFIG_KEYBOARD_GOLDFISH_EVENTS=y
> CONFIG_GOLDFISH_TTY=y
> CONFIG_BATTERY_GOLDFISH=y
> CONFIG_FB_GOLDFISH=y
> CONFIG_MMC_GOLDFISH=y
> CONFIG_GOLDFISH_AUDIO=y
> CONFIG_MTD_GOLDFISH_NAND=y
> CONFIG_GOLDFISH_BUS=y
> CONFIG_GOLDFISH_PIPE=y
>
> Is it a known issue? How can it be fixed?
This is a conflict between request_irq of goldfish and 8250. Setting
SERIAL_8250_SHARE_IRQ (which is the default) should make the trace gone.
Note that GOLDFISH=y makes sense only if you build a goldfish kernel.
I.e. setting both 8250 and goldfish does not make much sense IIRC.
thanks,
--
js
suse labs
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus)
2016-04-04 7:55 ` Jiri Slaby
@ 2016-04-04 8:06 ` Dmitry Vyukov
0 siblings, 0 replies; 3+ messages in thread
From: Dmitry Vyukov @ 2016-04-04 8:06 UTC (permalink / raw)
To: Jiri Slaby; +Cc: devel, Arve Hjønnevåg, Greg Kroah-Hartman, LKML
On Mon, Apr 4, 2016 at 9:55 AM, Jiri Slaby <jslaby@suse.cz> wrote:
> On 04/02/2016, 12:35 PM, Dmitry Vyukov wrote:
>> Hello,
>>
>> After updating from 8e0f93cda48ed054e1216bab5c60017e1a5fc1e8 to
>> 05cf8077e54b20dddb756eaa26f3aeb5c38dd3cf (Apr 1) I've started seeing
>> the following warnings:
>>
>> genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus)
>> CPU: 3 PID: 6626 Comm: init Tainted: G W 4.6.0-rc1+ #338
>> Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
>> ffffffff87eb26a0 ffff88003da17618 ffffffff82c8ea9f ffffffff86f0c740
>> fffffbfff0fd64d4 ffff88003e8a6aa8 ffff88005eb4c4c8 00000000fffffff0
>> ffffffff874f6be0 ffff880034ae63a8 ffff88003da17708 ffffffff8149e73c
>> Call Trace:
>> [< inline >] __dump_stack lib/dump_stack.c:15
>> [<ffffffff82c8ea9f>] dump_stack+0x12e/0x18f lib/dump_stack.c:51
>> [<ffffffff8149e73c>] __setup_irq+0x11fc/0x1610 kernel/irq/manage.c:1369
>> [<ffffffff8149ef55>] request_threaded_irq+0x275/0x410 kernel/irq/manage.c:1652
>> [< inline >] request_irq include/linux/interrupt.h:147
> ...
>> They appear after boot every 10 seconds.
>> I am using qemu. Here are GOLDFISH related .config values:
>>
>> CONFIG_GOLDFISH=y
>> # CONFIG_X86_GOLDFISH is not set
>> CONFIG_KEYBOARD_GOLDFISH_EVENTS=y
>> CONFIG_GOLDFISH_TTY=y
>> CONFIG_BATTERY_GOLDFISH=y
>> CONFIG_FB_GOLDFISH=y
>> CONFIG_MMC_GOLDFISH=y
>> CONFIG_GOLDFISH_AUDIO=y
>> CONFIG_MTD_GOLDFISH_NAND=y
>> CONFIG_GOLDFISH_BUS=y
>> CONFIG_GOLDFISH_PIPE=y
>>
>> Is it a known issue? How can it be fixed?
>
> This is a conflict between request_irq of goldfish and 8250. Setting
> SERIAL_8250_SHARE_IRQ (which is the default) should make the trace gone.
I have it set, but still see the warning.
$ grep "8250" .config
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
CONFIG_SERIAL_8250_PNP=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_DMA=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_CS=y
CONFIG_SERIAL_8250_NR_UARTS=32
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_8250_DETECT_IRQ=y
CONFIG_SERIAL_8250_RSA=y
# CONFIG_SERIAL_8250_FSL is not set
CONFIG_SERIAL_8250_DW=y
CONFIG_SERIAL_8250_FINTEK=y
CONFIG_SERIAL_8250_MID=y
CONFIG_SERIAL_8250_MOXA=y
# Non-8250 serial port support
> Note that GOLDFISH=y makes sense only if you build a goldfish kernel.
> I.e. setting both 8250 and goldfish does not make much sense IIRC.
Won't it happen with allmodconfig which seems to enable both?
$ make allmodconfig
# egrep "GOLDFISH|8250" .config
CONFIG_GOLDFISH=y
CONFIG_X86_GOLDFISH=y
CONFIG_KEYBOARD_GOLDFISH_EVENTS=m
CONFIG_GOLDFISH_TTY=m
CONFIG_SERIAL_8250=m
CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
CONFIG_SERIAL_8250_PNP=y
CONFIG_SERIAL_8250_DMA=y
CONFIG_SERIAL_8250_PCI=m
CONFIG_SERIAL_8250_CS=m
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_8250_DETECT_IRQ=y
CONFIG_SERIAL_8250_RSA=y
CONFIG_SERIAL_8250_BCM2835AUX=m
CONFIG_SERIAL_8250_DW=m
CONFIG_SERIAL_8250_RT288X=y
CONFIG_SERIAL_8250_FINTEK=m
CONFIG_SERIAL_8250_LPC18XX=m
CONFIG_SERIAL_8250_MID=m
CONFIG_SERIAL_8250_MOXA=m
# Non-8250 serial port support
CONFIG_BATTERY_GOLDFISH=m
CONFIG_FB_GOLDFISH=m
CONFIG_MMC_GOLDFISH=m
CONFIG_GOLDFISH_AUDIO=m
CONFIG_MTD_GOLDFISH_NAND=m
CONFIG_GOLDFISH_BUS=y
CONFIG_GOLDFISH_PIPE=m
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2016-04-04 8:07 UTC | newest]
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2016-04-02 10:35 genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus) Dmitry Vyukov
2016-04-04 7:55 ` Jiri Slaby
2016-04-04 8:06 ` Dmitry Vyukov
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