Created attachment 72210 [details] skge crash after attempt to setup as dhcp then ifdown commit d0249e44432aa0ffcf710b64449b8eaa3722547e Author: stephen hemminger <shemminger@vyatta.com> Date: Thu Jan 19 14:37:18 2012 +0000 skge: check for PCI dma mapping errors Driver should check for mapping errors. Machines with limited DMA maps may return an error when a PCI map is requested (not an issue on standard x86). Also use upper/lower 32 bits macros for clarity. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net> leads to failure to ifup <skge interface> if this one is setup as dhcp (static "works" but no traffic) then an ifdown leads to the attached oops. Reverting this commit fixes both issues (traffic and ifdown) at least until mainline tree commit 87f71ae2dd7471c1b4c94100be1f218e91dc64c3 . *-network:2 description: Ethernet interface produit: 88E8001 Gigabit Ethernet Controller fabriquant: Marvell Technology Group Ltd. identifiant matériel: d information bus: pci@0000:01:0d.0 nom logique: eth0 version: 13 numéro de série: 00:18:f3:02:33:79 taille: 100Mbit/s capacité: 1Gbit/s bits: 32 bits horloge: 66MHz fonctionnalités: bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=skge driverversion=1.14 duplex=full latency=64 maxlatency=31 mingnt=23 multicast=yes port=twisted pair promiscuous=yes speed=100Mbit/s ressources: irq:23 mémoire:fbff8000-fbffbfff portE/S:d400(taille=256) mémoire:fbfa0000-fbfbffff 01:0d.0 Ethernet controller: Marvell Technology Group Ltd. 88E8001 Gigabit Ethernet Controller (rev 13) Subsystem: ASUSTeK Computer Inc. Marvell 88E8001 Gigabit Ethernet Controller (Asus) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 64 (5750ns min, 7750ns max), Cache Line Size: 16 bytes Interrupt: pin A routed to IRQ 23 Region 0: Memory at fbff8000 (32-bit, non-prefetchable) [size=16K] Region 1: I/O ports at d400 [size=256] Expansion ROM at fbfa0000 [disabled] [size=128K] Capabilities: <access denied> Kernel driver in use: skge 01:0d.0 0200: 11ab:4320 (rev 13) Subsystem: 1043:811a