Date: Tue, 6 Jul 2004 09:25:11 -0400 From: Don Bowman <don@sandvine.com> To: 'Nate Lawson' <nate@root.org>, Don Bowman <don@sandvine.com> Cc: Alex Hoff <ahoff@sandvine.com> Subject: RE: acpi interrupt storm when disabling, IPI hang Message-ID: <FE045D4D9F7AED4CBFF1B3B813C85337051D920C@mail.sandvine.com>
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From: Nate Lawson [mailto:nate@root.org] > Don Bowman wrote: > > When i run 'acpiconf -d', i get an interrupt storm on irq9... > > vmstat -i shows ~1000/s. > > > > Jun 15 13:41:33 cdata kernel: Interrupt storm detected on > "irq9: acpi0"; > > throttling interrupt source > > > > when i try to re-enable, i get an error: > > > > # acpiconf -e > > acpi0: interrupt handler already installed > > ACPI-0210: *** Error: Unable to install System Control Interrupt > > Handler, AE_ALREADY_EXISTS > > acpiconf: enable failed: Device not configured > > # > > > > System is a Supermicro X5DPE motherboard, dual 2.8GHz Xeon, > > 533MHz FSB, Intel e7501 chipset. > > Some systems don't support legacy mode (acpi disabled). > Others support > legacy mode but don't support transition back to it after > acpi has been > enabled. > > In this case, it's likely the flags aren't set right for > AcpiEnableSubsystem. I'll look into it. > > > The system will not boot 5.x if acpi is disabled. > > It will run 4.x without trouble tho. > > What do you mean by "will not boot"? Hangs? Panics? More > info is needed. It hangs during allocating PnP ISA I think. I have someone who is looking into it now, a device ends up requesting -1 bytes. He will post more info this week.
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