On Thu, 2021-07-22 at 23:35 +0800, Ming Lei wrote: > Hello, > > On Mon, Jul 12, 2021 at 05:17:28PM -0000, Mark Salter (via Email Bridge) > wrote: > > From: Mark Salter <msal...@redhat.com> > > > > arm64: switch ark kernel to 4K pagesize > > > > RHEL9 for Aarch64 will use 4K pages. Shuffle the related configs > > around so that they are shared by both ark and fedora. > > > > Signed-off-by: Mark Salter <msal...@redhat.com> > > > > After I switch to 4K page size with upstream kernel on rhel8, the > following kernel panic is triggered. Not investigate further yet. > So we will not support upgrade from rhel8 to rhel9(rhel9 has to be > installed on one fresh storage system)?
What filesystem? There are some which have restrictions based around pagesize. So running a 4k kernel on a filesystem created with a 64k kernel is risky. Mark > > [ 15.619232] md: Waiting for all devices to be available before autodetect > [ 15.626017] md: If you don't use raid, use raid=noautodetect > [ 15.631675] md: Autodetecting RAID arrays. > [ 15.635759] md: autorun ... > [ 15.638540] md: ... autorun DONE. > [ 15.641864] List of all partitions: > [ 15.645340] No filesystem could mount root, tried: > [ 15.645342] > [ 15.651687] Kernel panic - not syncing: VFS: Unable to mount root fs on > unknown-block(0,0) > [ 15.659939] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W > 5.14.0-rc2_linus #4 > [ 15.668103] Hardware name: WIWYNN Mt.Jade Server System > B81.030Z1.0007/Mt.Jade Motherboard, BIOS 1.5.20210415 (SCP: 1.5.205 > [ 15.669774] usb 1-1.1: new high-speed USB device number 3 using xhci_hcd > [ 15.680695] Call trace: > [ 15.680695] dump_backtrace+0x0/0x1ec > [ 15.693465] show_stack+0x24/0x30 > [ 15.696766] dump_stack_lvl+0x68/0x84 > [ 15.700417] dump_stack+0x18/0x34 > [ 15.703719] panic+0x158/0x370 > [ 15.706762] mount_block_root+0x290/0x2b0 > [ 15.710761] mount_root+0x7c/0x8c > [ 15.714064] prepare_namespace+0x140/0x180 > [ 15.718147] kernel_init_freeable+0x12c/0x158 > [ 15.722492] kernel_init+0x30/0x140 > [ 15.725969] ret_from_fork+0x10/0x18 > [ 15.729596] SMP: stopping secondary CPUs > [ 15.734249] Kernel Offset: 0x187c390000 from 0xffffffc010000000 > [ 15.740155] PHYS_OFFSET: 0x7de40000000 > [ 15.743891] CPU features: 0x000002c1,a3302e42 > [ 15.748235] Memory Limit: none > [ 15.751292] ---[ end Kernel panic - not syncing: VFS: Unable to mount root > fs on unknown-block(0,0) ]--- > > > thanks, > Ming > _______________________________________________ kernel mailing list -- kernel@lists.fedoraproject.org To unsubscribe send an email to kernel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/kernel@lists.fedoraproject.org Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
