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Message-ID: <20071120053044.GE29070@cse.unsw.EDU.AU>
Date: Tue, 20 Nov 2007 16:30:44 +1100
From: Ian Wienand <ianw@...ato.unsw.edu.au>
To: e1000-devel@...ts.sourceforge.net
Cc: linux-kernel@...r.kernel.org
Subject: [PATCH] e100: free IRQ to remove warning when rebooting
Hi,
When rebooting today I got
Will now restart.
ACPI: PCI interrupt for device 0000:00:03.0 disabled
GSI 20 (level, low) -> CPU 1 (0x0100) vector 53 unregistered
Destroying IRQ53 without calling free_irq
WARNING: at /home/insecure/ianw/programs/git-kernel/linux-2.6/kernel/irq/chip.c:76 dynamic_irq_cleanup()
Call Trace:
[<a000000100014340>] show_stack+0x40/0xa0
sp=e00000407c927b40 bsp=e00000407c920eb8
[<a0000001000143d0>] dump_stack+0x30/0x60
sp=e00000407c927d10 bsp=e00000407c920ea0
[<a0000001000e58e0>] dynamic_irq_cleanup+0x160/0x1e0
sp=e00000407c927d10 bsp=e00000407c920e70
[<a0000001000106b0>] destroy_and_reserve_irq+0x30/0xc0
sp=e00000407c927d10 bsp=e00000407c920e40
[<a0000001000508f0>] iosapic_unregister_intr+0x5b0/0x5e0
sp=e00000407c927d10 bsp=e00000407c920dd8
[<a00000010000aa70>] acpi_unregister_gsi+0x30/0x60
sp=e00000407c927d10 bsp=e00000407c920db8
[<a00000010042e300>] acpi_pci_irq_disable+0x140/0x160
sp=e00000407c927d10 bsp=e00000407c920d88
[<a000000100774200>] pcibios_disable_device+0xa0/0xc0
sp=e00000407c927d20 bsp=e00000407c920d68
[<a0000001003778d0>] pci_disable_device+0x130/0x160
sp=e00000407c927d20 bsp=e00000407c920d38
[<a000000100525d20>] e100_shutdown+0x1c0/0x220
sp=e00000407c927d30 bsp=e00000407c920d08
[<a00000010037d0e0>] pci_device_shutdown+0x80/0xc0
sp=e00000407c927d30 bsp=e00000407c920ce8
[<a0000001004ecb70>] device_shutdown+0xf0/0x180
sp=e00000407c927d30 bsp=e00000407c920cc8
[<a0000001000ac4e0>] kernel_restart+0x60/0x120
sp=e00000407c927d30 bsp=e00000407c920ca8
[<a0000001000ac990>] sys_reboot+0x3b0/0x480
sp=e00000407c927d30 bsp=e00000407c920c30
[<a00000010000b4e0>] ia64_ret_from_syscall+0x0/0x20
sp=e00000407c927e30 bsp=e00000407c920c30
[<a000000000010620>] ia64_ivt+0xffffffff00010620/0x400
sp=e00000407c928000 bsp=e00000407c920c30
Restarting system.
I think the solution might be to free the IRQ before the pci_device_shutdown
Signed-off-by: Ian Wienand <ianw@...ato.unsw.edu.au>
---
e100.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/e100.c b/drivers/net/e100.c
index 3dbaec6..8ae5ac3 100644
--- a/drivers/net/e100.c
+++ b/drivers/net/e100.c
@@ -2782,6 +2782,7 @@ static void e100_shutdown(struct pci_dev *pdev)
pci_enable_wake(pdev, PCI_D3cold, 0);
}
+ free_irq(pdev->irq, netdev);
pci_disable_device(pdev);
pci_set_power_state(pdev, PCI_D3hot);
}
-
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