Stefan, On Wed, Nov 25 2020 at 14:41, Stefan Bühler wrote: > On 11/25/20 12:54 PM, Thomas Gleixner wrote: >> On Wed, Sep 16 2020 at 12:12, Stefan Bühler wrote: >> Can you please provide the output of: >> >> for ID in 05:00.0 06:00.0 06:00.1 06:01.0 06:01.1; do lspci -s $ID -vvv; done > > See attachment. > > Also I boot the affected systems now with "pci=noioapicquirk", which > "solves" the issue too (instead of patching the kernel). Yes, it skips the quirks. > 05:00.0 PCI bridge: PLX Technology, Inc. PEX8112 x1 Lane PCI Express-to-PCI Bridge (rev aa) (prog-if 00 [Normal decode]) > Physical Slot: 1 > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- > Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- > Latency: 0, Cache Line Size: 32 bytes > Interrupt: pin A routed to IRQ 16 > NUMA node: 0 > Bus: primary=05, secondary=06, subordinate=06, sec-latency=64 > I/O behind bridge: 0000e000-0000efff > Memory behind bridge: fb400000-fb4fffff > Prefetchable memory behind bridge: fff00000-000fffff > Secondary status: 66MHz+ FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR- > BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B- > PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- > Capabilities: <access denied> Can you please run this as root so the Capabilities are accessible? Thanks, tglx