Adding a data point on non-NVMe hardware potentially affected by the same underlying mechanism (PCI Configuration Request Retry Status / RRS polling rework, d591f6804e7e).
System: Gigabyte GA-EP31-DS3L (Intel P31/ICH7, 2008), Ubuntu 24.04.4 LTS Affected devices (SATA controllers, not NVMe): - ASMedia ASM1064 SATA controller [1b21:1064] on PCIe 03:00.0 - Marvell 88SE9215 SATA controller [1b4b:9215] on PCIe 04:00.0 Symptom: On kernel 6.8.0-136-generic, boot intermittently hangs for 10-25+ minutes with hung_task warnings on zpool/vdev_open/zio_wait (ZFS pool import stalling on real disk vdev open, not just PCIe link negotiation - I already ruled out the ASMedia empty-port staggered spin-up issue separately via ahci.mask_port_map + libahci.ignore_sss). Same hardware, same disks, cold boot: kernel 6.8.0-134-generic consistently boots in 2-4 minutes with no hangs at all. Also noticed my SSD system disk (SanDisk SDSSDA24, sdf) took over 3 minutes between "Attached SCSI disk" and mount on the slow 136 boot - an SSD delay of that magnitude on the same hardware/disk that mounts almost instantly on 134 suggests this isn't purely a spinning-disk spin-up issue, and points toward something at the PCI/enumeration layer rather than the storage device itself. Current workaround: pinned GRUB default + apt-mark hold to 6.8.0-134-generic. Happy to provide dmesg/lspci output from both kernels if useful. Attaching kernel logs from both the slow (6.8.0-136) and fast (6.8.0-134) boots on this hardware, plus lspci -vvv output for both affected SATA controllers. ** Attachment added: "lp2111521-logs-ep31ds3l.zip" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2111521/+attachment/5988695/+files/lp2111521-logs-ep31ds3l.zip -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2111521 Title: nvme no longer detected on boot after upgrade to 6.8.0-60 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2111521/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
