Hello everyone,
I have an Intel board (D915GEV/D915GRF) with an onboard i8xx TCO timer
watchdog on it. I compiled a kernel and tried to make it reset my
machine, but it simply doesn't. I use Linus Linux tree (GIT HEAD), the
following watchdog related configuration:
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_NOWAYOUT=y
CONFIG_I6300ESB_WDT=y
CONFIG_I8XX_TCO=y
I tried to test the watchdog using the following:
cat > /dev/watchdog
and wait a few minutes, but that doesn't reset my machine. dmesg shows the
following:
(webfarm) [~] dmesg | grep TCO
i8xx TCO timer: heartbeat value must be 2<heartbeat<39, using 30
i8xx TCO timer: initialized (0x0460). heartbeat=30 sec (nowayout=1)
lspci is this:
0000:00:00.0 Host bridge: Intel Corp. 915G/P/GV Processor to I/O Controller (rev 04)
0000:00:01.0 PCI bridge: Intel Corp. 915G/P/GV PCI Express Root Port (rev 04)
0000:00:02.0 VGA compatible controller: Intel Corp. 82915G Express Chipset Family Graphics Controller (rev 04)
0000:00:1c.0 PCI bridge: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 1 (rev 03)
0000:00:1c.1 PCI bridge: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 2 (rev 03)
0000:00:1c.2 PCI bridge: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 3 (rev 03)
0000:00:1c.3 PCI bridge: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 4 (rev 03)
0000:00:1d.0 USB Controller: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #1 (rev 03)
0000:00:1d.1 USB Controller: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #2 (rev 03)
0000:00:1d.2 USB Controller: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #3 (rev 03)
0000:00:1d.3 USB Controller: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #4 (rev 03)
0000:00:1d.7 USB Controller: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB2 EHCI Controller (rev 03)
0000:00:1e.0 PCI bridge: Intel Corp. 82801 PCI Bridge (rev d3)
0000:00:1f.0 ISA bridge: Intel Corp. 82801FB/FR (ICH6/ICH6R) LPC Interface Bridge (rev 03)
0000:00:1f.1 IDE interface: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) IDE Controller (rev 03)
0000:00:1f.2 IDE interface: Intel Corp. 82801FB/FW (ICH6/ICH6W) SATA Controller (rev 03)
0000:00:1f.3 SMBus: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) SMBus Controller (rev 03)
0000:04:00.0 Ethernet controller: Marvell Technology Group Ltd.: Unknown device 4361 (rev 17)
Has somone any ideas, did I do something wrong? From looking at the
source code it looks like the watchdog is enabled as soon as I open the
device. And if I don't feed anything in, it shouldn't reload the timer.
Thomas
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