NetBSD-Bugs archive

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]

Re: kern/49102 (wm detach panic on shutdown or reboot)



The following reply was made to PR kern/49102; it has been noted by GNATS.

From: "John D. Baker" <jdbaker%mylinuxisp.com@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/49102 (wm detach panic on shutdown or reboot)
Date: Wed, 20 Aug 2014 23:46:15 -0500 (CDT)

 Enumerating only wm[01] works around the panic.
 
 The real problem appears to be the attachment of multiple "pchbN" devices.
 They appear to map the same PCI bus multiple times--especially "pchb2".
 The wm[23] devices share the same device/function as wm[01], but on the
 spurious "pci3" bus.  There is also a spurious attachment of "aac1" and
 "ppb1" also on "pci3" at the same device/function as their "aac0" and
 "ppb0" counterparts.  The "aac1" attach message is "can't find mem space".
 
 Looking at the 'dmesg' output more closely, a more comprehensive workaround
 would be to enumerate "pchb0" only.
 
 Probably a BIOS bug (or maybe a hardware bug/quirk).
 
 -- 
 |/"\ John D. Baker, KN5UKS               NetBSD     Darwin/MacOS X
 |\ / jdbaker[snail]mylinuxisp[flyspeck]com    OpenBSD            FreeBSD
 | X  No HTML/proprietary data in email.   BSD just sits there and works!
 |/ \ GPGkeyID:  D703 4A7E 479F 63F8 D3F4  BD99 9572 8F23 E4AD 1645
 


Home | Main Index | Thread Index | Old Index