Messages in this thread | | | Date | Thu, 4 Mar 2004 14:19:15 +0100 | From | Christian Hammers <> | Subject | Server suddenly freezes but awakes upon SysRq!? |
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Hello
We have some problems with a server that started to suddenly freeze every now and then which means that it does react to ping and tcp connects but does not allow a login nor returns the shell or does syslog write anything to disc or network.
Funnily it always immediately awakes when we presses 'AltGr+SysGr+h' although a login on the console did not work before.
What could be the cause of this "sleep" mode if a sysrq ends it? We noticed that at least 1-2 freezes occured right after accessing the external usb2.0 backup harddrive.
The server is a dual-p3 with a 3ware ide-scsi RAID and very low load as postfix+apache server.
bye,
-christian-
Some bits of the configuration:
... CONFIG_MPENTIUMIII=y ... CONFIG_HIGHMEM4G=y # CONFIG_HIGHMEM64G is not set CONFIG_HIGHMEM=y CONFIG_HIGHIO=y # CONFIG_MATH_EMULATION is not set CONFIG_MTRR=y CONFIG_SMP=y CONFIG_NR_CPUS=32 # CONFIG_X86_NUMA is not set # CONFIG_X86_TSC_DISABLE is not set CONFIG_X86_TSC=y CONFIG_HAVE_DEC_LOCK=y # # General setup # CONFIG_NET=y CONFIG_X86_IO_APIC=y CONFIG_X86_LOCAL_APIC=y CONFIG_PCI=y # CONFIG_PCI_GOBIOS is not set # CONFIG_PCI_GODIRECT is not set CONFIG_PCI_GOANY=y CONFIG_PCI_BIOS=y CONFIG_PCI_DIRECT=y CONFIG_ISA=y CONFIG_PCI_NAMES=y # CONFIG_EISA is not set # CONFIG_MCA is not set CONFIG_HOTPLUG=y ... # CONFIG_ACPI is not set CONFIG_ACPI_BOOT=y ... CONFIG_PNP=y CONFIG_ISAPNP=m ... CONFIG_DEBUG_STACKOVERFLOW=y # CONFIG_DEBUG_HIGHMEM is not set # CONFIG_DEBUG_SLAB is not set # CONFIG_DEBUG_IOVIRT is not set CONFIG_MAGIC_SYSRQ=y # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_FRAME_POINTER is not set CONFIG_LOG_BUF_SHIFT=0
-- Christian Hammers WESTEND GmbH | Internet-Business-Provider Technik CISCO Systems Partner - Authorized Reseller Lütticher Straße 10 Tel 0241/701333-11 ch@westend.com D-52064 Aachen Fax 0241/911879
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