[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] rootfs as RAMDisk + Hypervisor: Cannot allocate memory
Hello world, i have the follow problem and hope to find help here. Facts: - XenparavirtOps-Kernel 2.6.32.23 (jeremys git) - Xen 4.0.1 (from tarball at xensource) - rootfs is a ext3 initrd RAMDisk (size 640M (655360)) with 130MB free space - Hypervisor, Kernel and Ramdisk are booting from a TFTPServer with Syslinux Multiboot (mboot.c32) - Boot parameters: $hypervisor dom0_mem=2048M loglvl=all guest_loglvl=all dom0_max_vcpus=1 dom0_vcpus_pin --- $kernel ramdisk_size=655360 root=/dev/ram0 rw $otheroptions --- $ramdisk The boot-progress and the system integrity without the XEN-Hypervisor are fine, all works without any errors or problems. Required modules are loaded without any problems. With Hypervisor i get various error messages on boot or in system from user space utilities and their modules. e.g. bonding or iscsi-module: ----------------------------------------------------------- [hostname ~]# modprobe iscsi_tcp Warning: at mm/vmalloc.c:108 vmap_page_range_noflush+0x22/0x2e2() Hardware name: IBM eServer BladeCenter HS21 -[7995A1G]- Pid: 2344, comm: modprobe Tainted: C W 2.6.32.23-pvops #2 Call Trace: [<ffffffffxxxxxxxx>] ? warn_slowpath_common [<ffffffffxxxxxxxx>] ? vmap_page_range_noflush [<ffffffffxxxxxxxx>] ? map_vm_area [<ffffffffxxxxxxxx>] ? __vmalloc_area_node [<ffffffffxxxxxxxx>] ? load_module [<ffffffffxxxxxxxx>] ? do_page_fault [<ffffffffxxxxxxxx>] ? sys_init_module [<ffffffffxxxxxxxx>] ? sys_call_fastpath ---[ end trace xxxxxxxx ]--- FATAL: Error inserting iscsi_tcp (/lib/modules/2.6.32.23-pvops/kernel/driver/scsi/iscsi_tcp.ko): Cannot allocate memory ----------------------------------------------------------- (or see http://picfront.de/d/7S63 for screenshot of management console) I have that problem with different hardware. But the funny is, if the rootfs size 490000 (478MB) and the ramdisk_size 550000 (537MB), all work! (but need more space in filesystem), the filesystem use 476MB). Perhaps is the problem based on free memory management of xen-hypervisor? (no-bootscrub param. was tested). Best regards Thank you for your time! Robyn _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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