https://bugzilla.kernel.org/show_bug.cgi?id=60620 --- Comment #19 from Jason Wang <jasowang@xxxxxxxxxx> --- (In reply to Folkert van Heusden from comment #18) > (In reply to Jason Wang from comment #17) > > Created attachment 114331 [details] > > patch to limit the head length of skb allocated > > Would you care to test this patch to see if it solves your problem? > > I'm not an expert in kernel programming but wouldn't an oversized skb only > affect the current incoming packet and not the whole interface stability? Yes, the patch was just to limit the head length of a packet received by tun/tap. Without this patch, host may try to allocate 64K contiguous memory at one time which has a high possibility of failure when memory is fragmented or under heavy stress. So this patch make sure only one page were allocated at one time. > Because what I see is that indeed packets get dropped and then after a while > communication totally stops and also does not recover anymore (unless I > rmmod/modprobe virtio_net). -- You are receiving this mail because: You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
