From: Santiago Leon Date: Tue, 3 Oct 2006 17:24:34 +0000 (-0500) Subject: [PATCH] ibmveth: kdump interrupt fix X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4347ef15f76dca33ae8da769d6900a468253bda2;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git [PATCH] ibmveth: kdump interrupt fix This patch fixes a race that panics the kernel when opening the device after a kdump. Without this patch there is a window where the hypervisor can send an interrupt before all the structures for the kdump ibmveth module are ready (because the hypervisor is not aware that the partition crashed and that the virtual driver is reloading). We close this window by disabling the interrupts before registering the adapter to the hypervisor. This patch depends on the "ibmveth: Harden driver initilisation" patch. Signed-off-by: Santiago Leon Signed-off-by: Jeff Garzik --- diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c index bd79d67c0e97..2ec49d254530 100644 --- a/drivers/net/ibmveth.c +++ b/drivers/net/ibmveth.c @@ -527,6 +527,8 @@ static int ibmveth_open(struct net_device *netdev) ibmveth_debug_printk("filter list @ 0x%p\n", adapter->filter_list_addr); ibmveth_debug_printk("receive q @ 0x%p\n", adapter->rx_queue.queue_addr); + h_vio_signal(adapter->vdev->unit_address, VIO_IRQ_DISABLE); + lpar_rc = ibmveth_register_logical_lan(adapter, rxq_desc, mac_address); if(lpar_rc != H_SUCCESS) {