12:17 p.m.
From: Mark Salter <msalter(a)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 <msalter(a)redhat.com>
diff --git a/redhat/configs/ark/generic/arm/aarch64/CONFIG_ARM64_4K_PAGES
b/redhat/configs/ark/generic/arm/aarch64/CONFIG_ARM64_4K_PAGES
deleted file mode 100644
index blahblah..blahblah 0
--- a/redhat/configs/ark/generic/arm/aarch64/CONFIG_ARM64_4K_PAGES
+++ /dev/null
@@ -1 +0,0 @@
-# CONFIG_ARM64_4K_PAGES is not set
diff --git a/redhat/configs/ark/generic/arm/aarch64/CONFIG_ARM64_64K_PAGES
b/redhat/configs/ark/generic/arm/aarch64/CONFIG_ARM64_64K_PAGES
deleted file mode 100644
index blahblah..blahblah 0
--- a/redhat/configs/ark/generic/arm/aarch64/CONFIG_ARM64_64K_PAGES
+++ /dev/null
@@ -1 +0,0 @@
-CONFIG_ARM64_64K_PAGES=y
diff --git a/redhat/configs/ark/generic/arm/aarch64/CONFIG_ARM64_PA_BITS_48
b/redhat/configs/ark/generic/arm/aarch64/CONFIG_ARM64_PA_BITS_48
deleted file mode 100644
index blahblah..blahblah 0
--- a/redhat/configs/ark/generic/arm/aarch64/CONFIG_ARM64_PA_BITS_48
+++ /dev/null
@@ -1 +0,0 @@
-# CONFIG_ARM64_PA_BITS_48 is not set
diff --git a/redhat/configs/ark/generic/arm/aarch64/CONFIG_ARM64_PA_BITS_52
b/redhat/configs/ark/generic/arm/aarch64/CONFIG_ARM64_PA_BITS_52
deleted file mode 100644
index blahblah..blahblah 0
--- a/redhat/configs/ark/generic/arm/aarch64/CONFIG_ARM64_PA_BITS_52
+++ /dev/null
@@ -1 +0,0 @@
-CONFIG_ARM64_PA_BITS_52=y
diff --git a/redhat/configs/ark/generic/arm/aarch64/CONFIG_ARM64_VA_BITS_42
b/redhat/configs/ark/generic/arm/aarch64/CONFIG_ARM64_VA_BITS_42
deleted file mode 100644
index blahblah..blahblah 0
--- a/redhat/configs/ark/generic/arm/aarch64/CONFIG_ARM64_VA_BITS_42
+++ /dev/null
@@ -1 +0,0 @@
-# CONFIG_ARM64_VA_BITS_42 is not set
diff --git a/redhat/configs/ark/generic/arm/aarch64/CONFIG_ARM64_VA_BITS_48
b/redhat/configs/ark/generic/arm/aarch64/CONFIG_ARM64_VA_BITS_48
deleted file mode 100644
index blahblah..blahblah 0
--- a/redhat/configs/ark/generic/arm/aarch64/CONFIG_ARM64_VA_BITS_48
+++ /dev/null
@@ -1 +0,0 @@
-# CONFIG_ARM64_VA_BITS_48 is not set
diff --git a/redhat/configs/ark/generic/arm/aarch64/CONFIG_ARM64_VA_BITS_52
b/redhat/configs/ark/generic/arm/aarch64/CONFIG_ARM64_VA_BITS_52
deleted file mode 100644
index blahblah..blahblah 0
--- a/redhat/configs/ark/generic/arm/aarch64/CONFIG_ARM64_VA_BITS_52
+++ /dev/null
@@ -1 +0,0 @@
-CONFIG_ARM64_VA_BITS_52=y
diff --git a/redhat/configs/fedora/generic/arm/aarch64/CONFIG_ARM64_4K_PAGES
b/redhat/configs/common/generic/arm/aarch64/CONFIG_ARM64_4K_PAGES
rename from redhat/configs/fedora/generic/arm/aarch64/CONFIG_ARM64_4K_PAGES
rename to redhat/configs/common/generic/arm/aarch64/CONFIG_ARM64_4K_PAGES
index blahblah..blahblah 100644
--- a/redhat/configs/fedora/generic/arm/aarch64/CONFIG_ARM64_4K_PAGES
+++ b/redhat/configs/common/generic/arm/aarch64/CONFIG_ARM64_4K_PAGES
diff --git a/redhat/configs/fedora/generic/arm/CONFIG_ARM64_64K_PAGES
b/redhat/configs/common/generic/arm/aarch64/CONFIG_ARM64_64K_PAGES
rename from redhat/configs/fedora/generic/arm/CONFIG_ARM64_64K_PAGES
rename to redhat/configs/common/generic/arm/aarch64/CONFIG_ARM64_64K_PAGES
index blahblah..blahblah 100644
--- a/redhat/configs/fedora/generic/arm/CONFIG_ARM64_64K_PAGES
+++ b/redhat/configs/common/generic/arm/aarch64/CONFIG_ARM64_64K_PAGES
diff --git a/redhat/configs/fedora/generic/arm/CONFIG_ARM64_PA_BITS_48
b/redhat/configs/common/generic/arm/aarch64/CONFIG_ARM64_PA_BITS_48
rename from redhat/configs/fedora/generic/arm/CONFIG_ARM64_PA_BITS_48
rename to redhat/configs/common/generic/arm/aarch64/CONFIG_ARM64_PA_BITS_48
index blahblah..blahblah 100644
--- a/redhat/configs/fedora/generic/arm/CONFIG_ARM64_PA_BITS_48
+++ b/redhat/configs/common/generic/arm/aarch64/CONFIG_ARM64_PA_BITS_48
diff --git a/redhat/configs/fedora/generic/arm/CONFIG_ARM64_VA_BITS_39
b/redhat/configs/common/generic/arm/aarch64/CONFIG_ARM64_VA_BITS_39
rename from redhat/configs/fedora/generic/arm/CONFIG_ARM64_VA_BITS_39
rename to redhat/configs/common/generic/arm/aarch64/CONFIG_ARM64_VA_BITS_39
index blahblah..blahblah 100644
--- a/redhat/configs/fedora/generic/arm/CONFIG_ARM64_VA_BITS_39
+++ b/redhat/configs/common/generic/arm/aarch64/CONFIG_ARM64_VA_BITS_39
diff --git a/redhat/configs/fedora/generic/arm/aarch64/CONFIG_ARM64_VA_BITS_48
b/redhat/configs/common/generic/arm/aarch64/CONFIG_ARM64_VA_BITS_48
rename from redhat/configs/fedora/generic/arm/aarch64/CONFIG_ARM64_VA_BITS_48
rename to redhat/configs/common/generic/arm/aarch64/CONFIG_ARM64_VA_BITS_48
index blahblah..blahblah 100644
--- a/redhat/configs/fedora/generic/arm/aarch64/CONFIG_ARM64_VA_BITS_48
+++ b/redhat/configs/common/generic/arm/aarch64/CONFIG_ARM64_VA_BITS_48
diff --git a/redhat/configs/fedora/generic/arm/aarch64/CONFIG_ARM64_VA_BITS_52
b/redhat/configs/common/generic/arm/aarch64/CONFIG_ARM64_VA_BITS_52
rename from redhat/configs/fedora/generic/arm/aarch64/CONFIG_ARM64_VA_BITS_52
rename to redhat/configs/common/generic/arm/aarch64/CONFIG_ARM64_VA_BITS_52
index blahblah..blahblah 100644
--- a/redhat/configs/fedora/generic/arm/aarch64/CONFIG_ARM64_VA_BITS_52
+++ b/redhat/configs/common/generic/arm/aarch64/CONFIG_ARM64_VA_BITS_52
--
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1255
12:57 p.m.
From: Mark Langsdorf on gitlab.com
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1255#note_6242...
Acked-by: Mark Langsdorf <mlangsdo(a)redhat.com>
(via approve button)
8:41 p.m.
From: Al Stone on gitlab.com
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1255#note_6244...
Acked-by: Al Stone <ahs3(a)redhat.com>
(via approve button)
10:35 a.m.
Hello,
On Mon, Jul 12, 2021 at 05:17:28PM -0000, Mark Salter (via Email Bridge) wrote:
From: Mark Salter <msalter(a)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 <msalter(a)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)?
[ 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
10:56 a.m.
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 <msalter(a)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 <msalter(a)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
11:16 a.m.
On Thu, Jul 22, 2021 at 11:56 PM Mark Salter <msalter(a)redhat.com> wrote:
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 <msalter(a)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 <msalter(a)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.
Please see the whole dmesg log:
http://pastebin.test.redhat.com/981459
The FS is XFS.
[root@ampere-mtjade-04 ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
sda 8:0 1 0B 0 disk
sr0 11:0 1 1024M 0 rom
nvme0n1 259:0 0 894.3G 0 disk
├─nvme0n1p1 259:1 0 600M 0 part /boot/efi
├─nvme0n1p2 259:2 0 1G 0 part /boot
├─nvme0n1p3 259:3 0 4G 0 part [SWAP]
├─nvme0n1p4 259:4 0 70G 0 part /
└─nvme0n1p5 259:5 0 818.7G 0 part /home
nvme1n1 259:6 0 894.3G 0 disk
[root@ampere-mtjade-04 ~]# mount | grep nvme0
/dev/nvme0n1p4 on / type xfs
(rw,relatime,seclabel,attr2,inode64,logbufs=8,logbsize=32k,noquota)
/dev/nvme0n1p2 on /boot type xfs
(rw,relatime,seclabel,attr2,inode64,logbufs=8,logbsize=32k,noquota)
/dev/nvme0n1p5 on /home type xfs
(rw,relatime,seclabel,attr2,inode64,logbufs=8,logbsize=32k,noquota)
/dev/nvme0n1p1 on /boot/efi type vfat
(rw,relatime,fmask=0077,dmask=0077,codepage=437,iocharset=ascii,shortname=winnt,errors=remount-ro)
Thanks,
Ming
2:16 p.m.
From: Mark Salter on gitlab.com
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1255#note_6335...
CKI Gitlabcommented:
Ming Lei ming.lei(a)redhat.com commented via email:
>
> > Hello,
> >
> > >
> > > 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 <msalter(a)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.
Please see the whole dmesg log:
http://pastebin.test.redhat.com/981459
This doesn't look good:
[ 0.000000] Memory doesn't fit in the linear mapping, VA_BITS too small
[ 0.000000] ------------[ cut here ]------------
[ 0.000000] initrd not fully accessible via the linear mapping -- please check
your bootloader ...
Can you install and run a recent fedora kernel?
1009
days inactive
1019
days old
kernel@lists.fedoraproject.org
6 comments
5 participants
participants (5)
-
Al Stone (via Email Bridge) -
Mark Langsdorf (via Email Bridge)
-
Mark Salter -
Mark Salter (via Email Bridge)
-
Ming Lei