Hello. Yesterday I experimented with kvm guests (the "hangs" issue), and by a chance rmmod'ed the "wrong" module - it was virtio_pci. Which resulted in an immediate OOPs and hang, like this:
WARNING: at drivers/base/core.c:122 device_release+0x5f/0x70() Device 'virtio1' does not have a release() function, it is broken and must be fixed. Modules linked in: ext3 jbd mbcache acpiphp dock pci_hotplug virtio_net virtio_blk virtio_pci(-) virtio_ring virtio Pid: 361, comm: rmmod Tainted: G S 2.6.27-i686smp #2.6.27.7 [<c012b81f>] warn_slowpath+0x6f/0xa0 [<c0110030>] prepare_set+0x30/0x80 [<c012067e>] __wake_up+0x3e/0x60 [<c01d1d25>] release_sysfs_dirent+0x45/0xb0 ... It looks like virtio_pci module should either use proper refcounting as other modules, or really should be unloadable... Thanks! /mjt -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
