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Groups > linux.kernel > #1369915 > unrolled thread
| Started by | Dmitry Vyukov <dvyukov@google.com> |
|---|---|
| First post | 2016-04-02 12:40 +0200 |
| Last post | 2016-04-04 10:10 +0200 |
| Articles | 3 — 2 participants |
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genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus) Dmitry Vyukov <dvyukov@google.com> - 2016-04-02 12:40 +0200
Re: genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus) Jiri Slaby <jslaby@suse.cz> - 2016-04-04 10:00 +0200
Re: genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus) Dmitry Vyukov <dvyukov@google.com> - 2016-04-04 10:10 +0200
| From | Dmitry Vyukov <dvyukov@google.com> |
|---|---|
| Date | 2016-04-02 12:40 +0200 |
| Subject | genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus) |
| Message-ID | <rjr8d-2nr-13@gated-at.bofh.it> |
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
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| From | Jiri Slaby <jslaby@suse.cz> |
|---|---|
| Date | 2016-04-04 10:00 +0200 |
| Subject | Re: genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus) |
| Message-ID | <rk7Au-8hT-11@gated-at.bofh.it> |
| In reply to | #1369915 |
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
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| From | Dmitry Vyukov <dvyukov@google.com> |
|---|---|
| Date | 2016-04-04 10:10 +0200 |
| Message-ID | <rk7Ka-as-13@gated-at.bofh.it> |
| In reply to | #1370415 |
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
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