Thank you for your tips, I will try it down.
regards
Su Hua <suhua.tanke@xxxxxxxxx> 于2019年2月21日周四 上午10:54写道：
>
> Hi Carlos
> I am using the kernel version 4.4.163. There is a problem that umount is in the D state after the disk is unplugged. This problem was solved after version 4.7. Now that we have not upgraded the kernel version, I want to try backport on this 4.4.163 first. I added these two patches separately. But there are still problems, can you still recall where i need to change?
> patch：
> e6b3bb78962e6 ("xfs: add "fail at unmount" error handling configuration")
> 9356413 Release buffer locks in case of IO error
>
> This is the information I used to communicate with Brian.
> https://www.spinics.net/lists/linux-xfs/msg24740.html
>
> problem：
> ...
> Feb 20 18:07:56 node-1 kernel: XFS (sdc): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5.
> Feb 20 18:07:56 node-1 kernel: XFS (sdc): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5.
> Feb 20 18:07:56 node-1 kernel: XFS (sdc): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5.
> Feb 20 18:07:56 node-1 kernel: XFS (sdc): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5.
> Feb 20 18:07:56 node-1 kernel: XFS (sdc): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5.
> Feb 20 18:07:56 node-1 kernel: XFS (sdc): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5.
> Feb 20 18:07:56 node-1 kernel: XFS (sdc): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5.
> Feb 20 18:07:56 node-1 kernel: XFS (sdc): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5.
> Feb 20 18:07:56 node-1 kernel: XFS (sdc): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5.
> Feb 20 18:07:56 node-1 kernel: XFS (sdc): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5.
> Feb 20 18:07:56 node-1 kernel: XFS (sdc): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5.
> Feb 20 18:07:56 node-1 kernel: XFS (sdc): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5.
> Feb 20 18:07:56 node-1 kernel: XFS (sdc): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5.
> Feb 20 18:07:56 node-1 kernel: XFS (sdc): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5.
> Feb 20 18:07:56 node-1 kernel: XFS (sdc): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5.
> Feb 20 18:07:56 node-1 kernel: XFS (sdc): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5.
> ...
>
> This is where I modified according to the second patch.
> 440 /*
> 441 * Someone else is already flushing the inode. Nothing we can do
> 442 * here but wait for the flush to finish and remove the item from
> 443 * the AIL.
> 444 */
> 445 if (!xfs_iflock_nowait(ip)) {
> 446
> 447 if (lip->li_mountp->m_flags & XFS_MOUNT_UNMOUNTING) {
> 448 int error;
> 449 struct xfs_dinode *dip;
> 450
> 451 error = xfs_imap_to_bp(ip->i_mount, NULL, &ip->i_imap, &dip,
> 452 &bp, XBF_TRYLOCK, 0);
> 453 if (error) {
> 454 rval = XFS_ITEM_FLUSHING;
> 455 goto out_unlock;
> 456 }
> 457
> 458 if (!(bp->b_flags & XBF_WRITE_FAIL)) {
> 459 rval = XFS_ITEM_FLUSHING;
> 460 xfs_buf_relse(bp);
> 461 goto out_unlock;
> 462 }
> 463
> 464 if (!xfs_buf_delwri_queue(bp, buffer_list))
> 465 rval = XFS_ITEM_FLUSHING;
> 466
> 467 xfs_buf_relse(bp);
> 468 } else
> 469 rval = XFS_ITEM_FLUSHING;
> 470 goto out_unlock;
> 471 }
>
> regards
> su
>
>
