Re: kern/52409: uvm_fault when waking up after sleep (Let's Note CF-{N,S}-9, etc.)

[coypu%sdf.org@localhost]

The following reply was made to PR kern/52409; it has been noted by GNATS.

From: coypu%sdf.org@localhost
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/52409: uvm_fault when waking up after sleep (Let's Note
 CF-{N,S}-9, etc.)
Date: Sun, 16 Jul 2017 06:58:04 +0000

 Hi,
 
 I see that the other code has:
 
    1784 	/* On the 945G/GM, the chipset reports the MSI capability on the
    1785 	 * integrated graphics even though the support isn't actually there
    1786 	 * according to the published specs.  It doesn't appear to function
    1787 	 * correctly in testing on 945G.
    1788 	 * This may be a side effect of MSI having been made available for PEG
    1789 	 * and the registers being closely associated.
    1790 	 *
    1791 	 * According to chipset errata, on the 965GM, MSI interrupts may
    1792 	 * be lost or delayed, but we use them anyways to avoid
    1793 	 * stuck interrupts on some machines.
    1794 	 */
    1795 	if (!IS_I945G(dev) && !IS_I945GM(dev))
    1796 		pci_enable_msi(dev->pdev);
 
 So maybe limit this on resume too.