Hi, Thomas, I'm sorry for reporting this so late in the cycle, I wasn't expecting being the only one affected. :) "PCI/MSI: Use new mask/unmask functions" broke boot for my ION/Atom 330 system. Dmesg shows failed to IDENTIFY (I/O error, err_mask=0x4) and the system drops to an initramfs shell. Let me know if you need any additional info (DMI dump and/or .config, for example). Git bisect log follows: git bisect start # good: [7d2a07b769330c34b4deabeed939325c77a7ec2f] Linux 5.14 git bisect good 7d2a07b769330c34b4deabeed939325c77a7ec2f # bad: [6880fa6c56601bb8ed59df6c30fd390cc5f6dd8f] Linux 5.15-rc1 git bisect bad 6880fa6c56601bb8ed59df6c30fd390cc5f6dd8f # bad: [1b4f3dfb4792f03b139edf10124fcbeb44e608e6] Merge tag 'usb-serial-5.15-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next git bisect bad 1b4f3dfb4792f03b139edf10124fcbeb44e608e6 # good: [29ce8f9701072fc221d9c38ad952de1a9578f95c] Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net git bisect good 29ce8f9701072fc221d9c38ad952de1a9578f95c # bad: [e7c1bbcf0c315c56cd970642214aa1df3d8cf61d] Merge tag 'hwmon-for-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging git bisect bad e7c1bbcf0c315c56cd970642214aa1df3d8cf61d # bad: [679369114e55f422dc593d0628cfde1d04ae59b3] Merge tag 'for-5.15/block-2021-08-30' of git://git.kernel.dk/linux-block git bisect bad 679369114e55f422dc593d0628cfde1d04ae59b3 # good: [c7a5238ef68b98130fe36716bb3fa44502f56001] Merge tag 's390-5.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux git bisect good c7a5238ef68b98130fe36716bb3fa44502f56001 # good: [e5e726f7bb9f711102edea7e5bd511835640e3b4] Merge tag 'locking-core-2021-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip git bisect good e5e726f7bb9f711102edea7e5bd511835640e3b4 # good: [158ee7b65653d9f841823c249014c2d0dfdeeb8f] block: mark blkdev_fsync static git bisect good 158ee7b65653d9f841823c249014c2d0dfdeeb8f # bad: [47fb0cfdb7a71a8a0ff8fe1d117363dc81f6ca77] Merge tag 'irqchip-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core git bisect bad 47fb0cfdb7a71a8a0ff8fe1d117363dc81f6ca77 # good: [4513fb87e1402ad815912ec7f027eb17149f44ee] Merge branch irq/misc-5.15 into irq/irqchip-next git bisect good 4513fb87e1402ad815912ec7f027eb17149f44ee # bad: [88ffe2d0a55a165e55cedad1693f239d47e3e17e] genirq/cpuhotplug: Demote debug printk to KERN_DEBUG git bisect bad 88ffe2d0a55a165e55cedad1693f239d47e3e17e # good: [fcacdfbef5a1633211ebfac1b669a7739f5b553e] PCI/MSI: Provide a new set of mask and unmask functions git bisect good fcacdfbef5a1633211ebfac1b669a7739f5b553e # bad: [91cc470e797828d779cd4c1efbe8519bcb358bae] genirq: Change force_irqthreads to a static key git bisect bad 91cc470e797828d779cd4c1efbe8519bcb358bae # bad: [428e211641ed808b55cdc7d880a0ee349eff354b] genirq/affinity: Replace deprecated CPU-hotplug functions. git bisect bad 428e211641ed808b55cdc7d880a0ee349eff354b # bad: [446a98b19fd6da97a1fb148abb1766ad89c9b767] PCI/MSI: Use new mask/unmask functions git bisect bad 446a98b19fd6da97a1fb148abb1766ad89c9b767 # first bad commit: [446a98b19fd6da97a1fb148abb1766ad89c9b767] PCI/MSI: Use new mask/unmask functions Thanks in advance, Rui
