Re: [bug report] BUG: kernel NULL pointer dereference, address: 00000000000000fc

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On Wed, Apr 26, 2023 at 2:24 PM Yu Kuai <yukuai1@xxxxxxxxxxxxxxx> wrote:
>
> Hi,
>
> 在 2023/04/26 14:20, Changhui Zhong 写道:
> >> Is this patch in the branch for-6.4/block?
> >>
> >> 3723091ea188 ("block: don't set GD_NEED_PART_SCAN if scan partition failed")
> >>>
> >
> > Hi, Yu Kuai
> >
> > this patch was not found in the for-6.4/block branch, and found it
> > exist in the master branch
> >
>
> Can you try to test with this patch?
>
> Thanks,
> Kuai
>

Hi, Kuai

after patching this patch, the script test passed, confirm that this
patch can fix this issue.

:: [ 04:31:01 ] :: [  BEGIN   ] :: Running 'mdadm -S /dev/md0'
mdadm: stopped /dev/md0
:: [ 04:31:02 ] :: [   PASS   ] :: Command 'mdadm -S /dev/md0'
(Expected 0, got 0)
:: [ 04:31:02 ] :: [  BEGIN   ] :: Running 'mdadm -A /dev/md0
/dev/"$dev0" /dev/"$dev1"'
mdadm: /dev/md0 has been started with 2 drives.
:: [ 04:31:02 ] :: [   PASS   ] :: Command 'mdadm -A /dev/md0
/dev/"$dev0" /dev/"$dev1"' (Expected 0, got 0)
:: [ 04:31:05 ] :: [  BEGIN   ] :: Running 'lsblk'
NAME                         MAJ:MIN RM   SIZE RO TYPE  MOUNTPOINTS
sda                            8:0    1 447.1G  0 disk
└─md0                          9:0    0 447.1G  0 raid1
  └─md0p1                    259:0    0   100M  0 part
sdb                            8:16   1 447.1G  0 disk
├─sdb1                         8:17   1     1G  0 part  /boot
└─sdb2                         8:18   1 446.1G  0 part
  ├─rhel_storageqe--104-root 253:0    0    70G  0 lvm   /
  ├─rhel_storageqe--104-swap 253:1    0   7.7G  0 lvm   [SWAP]
  └─rhel_storageqe--104-home 253:2    0 368.4G  0 lvm   /home
sdc                            8:32   1 447.1G  0 disk
└─md0                          9:0    0 447.1G  0 raid1
  └─md0p1                    259:0    0   100M  0 part
sdd                            8:48   1 447.1G  0 disk
:: [ 04:31:05 ] :: [   PASS   ] :: Command 'lsblk' (Expected 0, got 0)
:: [ 04:31:05 ] :: [  BEGIN   ] :: Running 'cat /proc/partitions'
major minor  #blocks  name

   8       48  468851544 sdd
   8        0  468851544 sda
   8       32  468851544 sdc
   8       16  468851544 sdb
   8       17    1048576 sdb1
   8       18  467801088 sdb2
 253        0   73400320 dm-0
 253        1    8060928 dm-1
 253        2  386338816 dm-2
   9        0  468851392 md0
 259        0     102400 md0p1

Thanks,





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