linux-kernel - Re: 2.6.23-rc1-mm2

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Message-Id: <200708011002.30962.m.kozlowski@tuxland.pl>
Date:	Wed, 1 Aug 2007 10:02:30 +0200
From:	Mariusz Kozlowski <m.kozlowski@...land.pl>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org,
	linux-usb-devel@...ts.sourceforge.net, gregkh@...e.de,
	linuxppc-dev@...abs.org, paulus@...ba.org
Subject: Re: 2.6.23-rc1-mm2

Hello,

	I get this warning. Looking at the comment in kernel/irq/resend.c
it's harmless. Is it?

WARNING: at kernel/irq/resend.c:69 check_irq_resend()
 [<c010456a>] show_trace_log_lvl+0x1a/0x30
 [<c010508d>] show_trace+0x12/0x14
 [<c01051e0>] dump_stack+0x15/0x17
 [<c013b001>] check_irq_resend+0x91/0xa0
 [<c013ab58>] enable_irq+0xb1/0xb3
 [<c02d7b81>] ide_config_drive_speed+0xda/0x269
 [<c02d391c>] ali15x3_tune_chipset+0xcc/0x161
 [<c02dd367>] ide_tune_dma+0x43/0x4d
 [<c02d29e0>] ali15x3_config_drive_for_dma+0xf/0x2a
 [<c02dc89a>] ide_set_dma+0x11/0x40
 [<c02d41cf>] set_using_dma+0x84/0xd1
 [<c02d4dfe>] generic_ide_ioctl+0xb9/0x3fb
 [<c02df7e4>] idedisk_ioctl+0x3f/0x10c
 [<c023d779>] blkdev_driver_ioctl+0x55/0x5e
 [<c023da3e>] blkdev_ioctl+0x2bc/0x83e
 [<c017e5ca>] block_ioctl+0x1b/0x21
 [<c01664c2>] do_ioctl+0x22/0x71
 [<c0166566>] vfs_ioctl+0x55/0x28a
 [<c01667ce>] sys_ioctl+0x33/0x51
 [<c0103f32>] sysenter_past_esp+0x5f/0x85
 =======================

Then reattaching a usb mouse caused this (only once)

usb 2-1: USB disconnect, address 2
BUG: atomic counter underflow at:
 [<c010456a>] show_trace_log_lvl+0x1a/0x30
 [<c010508d>] show_trace+0x12/0x14
 [<c01051e0>] dump_stack+0x15/0x17
 [<c01418cf>] __free_pages+0x50/0x52
 [<c01418f0>] free_pages+0x1f/0x21
 [<c010783d>] dma_free_coherent+0x43/0x9c
 [<c0315067>] hcd_buffer_free+0x43/0x6a
 [<c030b2b4>] usb_buffer_free+0x23/0x29
 [<c0346db4>] hid_free_buffers+0x23/0x71
 [<c0346eb2>] hid_disconnect+0xb0/0xc8
 [<c0313676>] usb_unbind_interface+0x30/0x72
 [<c02c6df0>] __device_release_driver+0x6a/0x92
 [<c02c71c3>] device_release_driver+0x20/0x36
 [<c02c6736>] bus_remove_device+0x62/0x85
 [<c02c49f8>] device_del+0x16d/0x27c
 [<c0310f25>] usb_disable_device+0x7a/0xe2
 [<c030d0bc>] usb_disconnect+0x94/0xde
 [<c030e030>] hub_thread+0x2fe/0xc1b
 [<c0128aee>] kthread+0x36/0x58
 [<c0104233>] kernel_thread_helper+0x7/0x14
 =======================
uhci_hcd 0000:00:0c.0: dma_pool_free buffer-32, 6b6b6b6b/6b6b6b6b (bad dma)

Every new try shows:

usb 2-1: new low speed USB device using uhci_hcd and address 3
usb 2-1: new device found, idVendor=046d, idProduct=c00e
usb 2-1: new device strings: Mfr=1, Product=2, SerialNumber=0
usb 2-1: Product: USB-PS/2 Optical Mouse
usb 2-1: Manufacturer: Logitech
usb 2-1: configuration #1 chosen from 1 choice
input: Logitech USB-PS/2 Optical Mouse as /class/input/input9
input: USB HID v1.10 Mouse [Logitech USB-PS/2 Optical Mouse] on usb-0000:00:0c.0-1
usb 2-1: USB disconnect, address 3
uhci_hcd 0000:00:0c.0: dma_pool_free buffer-32, 6b6b6b6b/6b6b6b6b (bad dma)

But mouse works ok.


Second issue as reported earilier allmodconfig fails to build on imac g3.

  CC      arch/powerpc/kernel/lparmap.s
  AS      arch/powerpc/kernel/head_64.o
lparmap.c: Assembler messages:
lparmap.c:84: Error: file number 1 already allocated
make[1]: *** [arch/powerpc/kernel/head_64.o] Blad 1
make: *** [arch/powerpc/kernel] Blad 2


Regards,

	Mariusz
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