Re: panics due to buggy ACPI in Dell Latitude E6530?

[David Demelier]

Le mercredi 27 février 2013 18:51:09 Andriy Gapon a écrit :
 on 27/02/2013 17:22 kron said the following:
  Hi,
  
  I have a Dell notebook (Latitude E6530) on which I track
  9-STABLE. It served excellently until mid-Jan when it started
  to panic a few times a week or so:
  
  Fatal trap 12: page fault while in kernel mode
  cpuid = 3; apic id = 03
  fault virtual address   = 0x10116
  fault code  = supervisor read data, page not present
  instruction pointer = 0x20:0x802bc360
  stack pointer   = 0x28:0xff848f6db390
  frame pointer   = 0x28:0xff848f6db3c0
  code segment= base 0x0, limit 0xf, type 0x1b
  = DPL 0, pres 1, long 1, def32 0, gran 1
  processor eflags= interrupt enabled, resume, IOPL = 0
  current process = 2199 (conky)
  trap number = 12
  panic: page fault
  cpuid = 3
  
  Before the panics kernel used to emit messages like:
  ACPI Error: No object attached to node 0xfe00094a51c0
  (20110527/exresnte-138)
  ACPI Error: Method execution failed [\_SB_.BAT0._UID] (Node
  0xfe00094a51c0), AE_AML_NO_OPERAND (20110527/uteval-113)
 
 This looks very much like a heisenbug reported several times here.
 E.g.:
 http://lists.freebsd.org/pipermail/freebsd-acpi/2012-December/007962.html
 
  I suspected it started with a BIOS update (A07 - A09).
  Following the handbook, I took a look at acpidump. Sad to say,
  it all was Greek to me, I could't even compile it back using
  iasl (35 Errors). However, while skimming it I noticed names
  of many versions of Windows and in addition to that, Linux.
  Just to try, I put hw.acpi.osname=Linux to /boot/loader.conf.
  Since that I've never get the panic again (for ~3 weeks).
  I hope this is not just a coincidence.
 
 It very well could be.
 
  Maybe this experience can help somebody else.
  
  If any of ACPI developers wants to play with the problem
  I can provide more info (sorry, no crashdump, was not enabled),
  do tests, etc.
 
 Please at least enable printing of a stack trace.
 Better do get the crash dump.
 
 P.S. I suspect that the issue we are discussing with hps in this mailing
 list could be related to this problem.

About me, I've currently added the following to my /boot/loader.conf:

debug.acpi.disabled=acad cmbat

And it solved my panics but unfortunately I must say bye to the battery 
information.

Regards,

-- 
David Demelier
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HP Laptop Suspend/Resume Question

[Jason Selwitz]

Hello, I had gotten some advice from you guys a while back about a Dell
Laptop and was able to get everything working, so I thought I would run
this by you and see if anyone had any recommendations.
For starters the system in question is an HP Elitebook 2530p running
Freebsd 9.1 Release, and while I must state that prior to upgrading to
9.1, suspend/resume worked perfectly under 9.0 however now I can
suspend/resume successfully only once after the system has been powered
up, and everything connected to the system seems to come up and function
properly but any subsequent suspend actions start to work and then seem
to lock the system at what appears to be when it is trying to suspend
any usb devices or possibly just after shutting down usb. I will happily
provide any output to whomever might be interested in lending a hand,
thanks again in advance..

JAson
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