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  1. 03 Nov, 2008 1 commit
  3. 23 Oct, 2008 1 commit
  5. 21 Oct, 2008 2 commits
  7. 06 Jun, 2008 1 commit
    • Jaroslav Franek's avatar
      sound: emu10k1 - fix system hang with Audigy2 ZS Notebook PCMCIA card · 868e15db
      Jaroslav Franek authored 
      When the Linux kernel is compiled with CONFIG_DEBUG_SHIRQ=y,
the Soundblaster Audigy2 ZS Notebook PCMCIA card causes the
system hang during boot (udev stage) or when the card is hot-plug.
The CONFIG_DEBUG_SHIRQ flag is by default 'y' with all Fedora
kernels since 2.6.23. The problem was reported as
https://bugzilla.redhat.com/show_bug.cgi?id=326411

The issue was hunted down to the snd_emu10k1_create() routine:

/* pseudo-code */
snd_emu10k1_create(...) {
	...
	request_irq(... IRQF_SHARED ...) {
		register the irq handler
		#ifdef CONFIG_DEBUG_SHIRQ
		call the irq handler: snd_emu10k1_interrupt() {
			poll I/O port   // <---- !! system hangs
			...
		}
		#endif
	}
	...
	snd_emu10k1_cardbus_init(...) {
		initialize I/O ports
	}
	...
}

The early access to I/O port in the interrupt handler causes
the freeze. Obviously it is necessary to init the I/O ports
before accessing them. This patch moves the registration of
the irq handler after the initialization of the I/O ports.
Signed-off-by: default avatarJaroslav Franek <jarin.franek@post.cz>
Acked-by: default avatarJames Courtier-Dutton <James@superbug.co.uk>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      868e15db
  9. 02 Jun, 2008 1 commit
  11. 24 Apr, 2008 1 commit
  13. 31 Jan, 2008 7 commits
  15. 16 Oct, 2007 6 commits
  17. 20 Jul, 2007 3 commits
  19. 11 Jul, 2007 1 commit
    • Auke Kok's avatar
      PCI: Change all drivers to use pci_device->revision · 44c10138
      Auke Kok authored 
      Instead of all drivers reading pci config space to get the revision
ID, they can now use the pci_device->revision member.

This exposes some issues where drivers where reading a word or a dword
for the revision number, and adding useless error-handling around the
read. Some drivers even just read it for no purpose of all.

In devices where the revision ID is being copied over and used in what
appears to be the equivalent of hotpath, I have left the copy code
and the cached copy as not to influence the driver's performance.

Compile tested with make all{yes,mod}config on x86_64 and i386.
Signed-off-by: default avatarAuke Kok <auke-jan.h.kok@intel.com>
Acked-by: default avatarDave Jones <davej@redhat.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
      44c10138
  21. 11 May, 2007 2 commits
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  37. 02 Jul, 2006 1 commit
  39. 22 Jun, 2006 2 commits
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