RE: What does it mean by Stack unwind information not ava iable ?

In my experience it has been that I had the wrong symbols or no symbols.
As to your other problem it appears you are calling KeSetTimer at an IRQL
of 0x1c, which is illegal. It should be called at DISPATCH_LEVEL or lower.

Assuming you are using a DPC with the timer, are you calling KeRaiseIrql
before setting up a new timer?

-----Original Message-----
From: Prokash Sinha []
Sent: Monday, July 29, 2002 4:28 PM
To: File Systems Developers
Subject: [ntfsd] What does it mean by Stack unwind information not avaiable

Hi All,

Is it possible that stack is corrupted, or the stack being presented here is
incorrect ?


An attempt was made to access a pagable (or completely invalid) address at
interrupt request level (IRQL) that is too high. This is usually
caused by drivers using improper addresses.
If a kernel debugger is available get the stack backtrace.
Arg1: a948685c, memory referenced
Arg2: 0000001c, IRQL
Arg3: 00000001, value 0 = read operation, 1 = write operation
Arg4: 8011c013, address which referenced memory

8014a34c 8011bed2 fff85edf ffffffff 8aaabcd0 nt!KiInsertTimerTable+0xbf
8014a374 801167f7 fff85edf ffffffff bde34920 nt!KiInsertTreeTimer+0x9a
8014a39c 801167a7 f9d75078 fff85edf ffffffff nt!KeSetTimerEx+0x4b
8014a3b8 f9d47073 f9d75078 fff85edf ffffffff nt!KeSetTimer+0x17
WARNING: Stack unwind information not available. Following frames may be
8014a3e0 f9d2f274 fff85edf bde34920 00000000 WKHABBG+0x5d073
8014a418 8011be02 f9d74e00 f9d75078 bde34920 WKHABBG+0x45274
8014a514 8011bd14 80147120 80147320 ffdff000 nt!KiTimerListExpire+0xe4
8014a540 8013d96c 8014fb60 00000000 00005abe nt!KiTimerExpiration+0xce

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