On Thu, Oct 19, 2023 at 01:49:50AM +0000, Ricky WU wrote: > [ 0.267813] pci 0000:00:1c.0: [8086:a33c] type 01 class 0x060400 Cannon Lake PCH Root Port > [ 0.275241] pci 0000:01:00.0: [10ec:5261] type 00 class 0xff0000 > [ 0.275315] pci 0000:01:00.0: reg 0x10: [mem 0xa3b00000-0xa3b00fff] > [ 0.275782] pci 0000:01:00.0: supports D1 D2 > [ 0.275784] pci 0000:01:00.0: PME# supported from D1 D2 D3hot D3cold > [ 0.276490] pci 0000:00:1c.0: PCI bridge to [bus 01] Device below Root Port is initially a Realtek RTS5261 card reader. > [ 0.395968] pcieport 0000:00:1c.0: PME: Signaling with IRQ 122 > [ 0.396009] pcieport 0000:00:1c.0: pciehp: Slot #8 AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug+ Surprise+ Interlock- NoCompl+ IbPresDis- LLActRep+ Root Port is hotplug-capable. > [ 43.180701] pcieport 0000:00:1c.0: pciehp: Slot(8): Link Down > [ 43.180709] pcieport 0000:00:1c.0: pciehp: Slot(8): Card not present > [ 44.403768] pcieport 0000:00:1c.0: pciehp: Slot(8): Card present > [ 44.403772] pcieport 0000:00:1c.0: pciehp: Slot(8): Link Up > [ 44.540631] pci 0000:01:00.0: [15b7:5007] type 00 class 0x010802 Card reader is unplugged and replaced by SanDisk SN530 NVMe SSD. > [ 51.682628] pcieport 0000:00:1c.0: pciehp: Slot(8): Link Down > [ 51.716800] nvme0n1: detected capacity change from 495050752 to 0 > [ 51.793382] pcieport 0000:00:1c.0: pciehp: Slot(8): Card present > [ 51.793392] pcieport 0000:00:1c.0: pciehp: Slot(8): Link Up > [ 51.928633] pci 0000:01:00.0: [10ec:5261] type 00 class 0xff0000 NVMe SSD replaced by the card reader again. > [ 54.872928] pcieport 0000:00:1c.0: pciehp: Slot(8): Link Down > [ 56.146581] pcieport 0000:00:1c.0: pciehp: Slot(8): Card present > [ 56.146584] pcieport 0000:00:1c.0: pciehp: Slot(8): Link Up > [ 56.284632] pci 0000:01:00.0: [15b7:5007] type 00 class 0x010802 Card reader replaced by NVMe SSD, second time. > [ 60.635845] pcieport 0000:00:1c.0: pciehp: Slot(8): Link Down > [ 60.676842] nvme0n1: detected capacity change from 495050752 to 0 > [ 60.748953] pcieport 0000:00:1c.0: pciehp: Slot(8): Card present > [ 60.748958] pcieport 0000:00:1c.0: pciehp: Slot(8): Link Up > [ 60.884619] pci 0000:01:00.0: [10ec:5261] type 00 class 0xff0000 NVMe SSD replaced by the card reader, second time. > [ 63.898861] pcieport 0000:00:1c.0: pciehp: Slot(8): Link Down > [ 63.912118] BUG: unable to handle page fault for address: ffffb24d403e5010 Card reader replaced with NVMe SSD, third time. So it took three tries to reproduce the page fault. Thanks for the log, the issue is a little less murky now. But it's still unclear what the root cause is and thus what the proper solution is. I think this needs more in-depth debugging, see my previous e-mail. Hope that helps! Thanks, Lukas