I'm trying 2.6.18-rc1 on a Thinkpad T60 (dual-core T2400, SATA hard
drive) running Ubuntu 6.06. The kernel is SMP and PREEMPT and has
many lock validation options turned on. During boot the lockdep
checker reports good news:
[ 20.936404] Good, all 218 testcases passed! |
When I pressed Fn-F4 (for suspend-to-ram), it began to suspend,
blanked the screen, and then came back right away to the X session. I
don't think it ever made it into suspend mode (I've reported the
suspend problem to linux-acpi). And this lockdep warning showed up:
[ 459.756000] BUG: warning at kernel/lockdep.c:1799/trace_hardirqs_on()
[ 459.756000] [<c0105aeb>] show_trace+0x1b/0x20
[ 459.756000] [<c0105b14>] dump_stack+0x24/0x30
[ 459.756000] [<c013c186>] trace_hardirqs_on+0x166/0x180
[ 459.756000] [<c010522d>] do_general_protection+0xcd/0x220
[ 459.756000] [<c0103e01>] error_code+0x39/0x40
-Sanjoy
`Never underestimate the evil of which men of power are capable.'
--Bertrand Russell, _War Crimes in Vietnam_, chapter 1.
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