Re: cardbus panic: end address is not aligned

On 07/07/2011 14:20, John Baldwin wrote:
> On Sunday, July 03, 2011 1:39:18 am Doug Barton wrote:
>> I have 2 ath-based pc-card adapters. If I put either one of them in the 
>> slot while the system is up, or if I try booting with them in the slot, 
>> I get an instant panic. The cards previously worked in -current, and 
>> continue to work in 8-stable and windows xp. I don't have any other 
>> pc-cards to compare with. Full core.txt.0 file is in my home directory 
>> on freefall.
>>
>> This problem persists on r223732 but happened to me for the first time a 
>> week or 2 ago (haven't had time to report it previously, apologies). It 
>> likely originated a while before though, I don't use these cards very 
>> often.
>>
>> panic: end address is not aligned
>>
>> #1  0xffffffff80426a8a in kern_reboot (howto=260)
>>      at /home/svn/head/sys/kern/kern_shutdown.c:430
>> #2  0xffffffff80426521 in panic (fmt=Variable "fmt" is not available.
>> )
>>      at /home/svn/head/sys/kern/kern_shutdown.c:604
>> #3  0xffffffff8032c648 in pcib_grow_window (sc=0xfffffe0002603400,
>>      w=0xfffffe0002603498, type=3, start=0, end=4294967295, count=65536, 
>> flags=Variable "flags" is not available.
> 
> The line is here:
> 
> 	KASSERT((w->limit & ((1ul << w->step) - 1)) == (1ul << w->step) - 1,
> 	    ("end address is not aligned"));
> 
> Can you run kgdb and do 'frame 3' and 'p/x *w'?

(kgdb) frame 3
#3  0xffffffff8032c648 in pcib_grow_window (sc=0xfffffe0002603400,
    w=0xfffffe0002603498, type=3, start=0, end=4294967295, count=65536,
flags=Variable "flags" is not available.
)
    at /home/svn/head/sys/dev/pci/pci_pci.c:1018
1018		KASSERT((w->limit & ((1ul << w->step) - 1)) == (1ul << w->step) - 1,
(kgdb) p/x *w
$1 = {base = 0x80000000, limit = 0x8800ffff, rman = {rm_list = {
      tqh_first = 0xfffffe0002702a00, tqh_last = 0xfffffe0002702a98},
    rm_mtx = 0xfffffe00024e20e0, rm_link = {tqe_next = 0xfffffe0002603520,
      tqe_prev = 0xfffffe0002603448}, rm_start = 0x0, rm_end = 0xffffffff,
    rm_type = 0x2, rm_descr = 0xfffffe0002608060}, res =
0xfffffe0002702b00,
  reg = 0x20, valid = 0x1, mask = 0x2, step = 0x14, name =
0xffffffff8071b77c}



> Also, can you boot your machine, then do 'sysctl debug.bootverbose=1', insert 
> the card and record the messages in dmesg when it does?  (You can likely get 
> those out of kgdb.)

The system panics instantly when I insert the cards. Would a verbose
dmesg entry from 8.2-stable work? I can do that on the same hardware.
If not I can try it on -current and see if anything gets logged.


Thanks for taking a look!

Doug

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