FS#56749 - [linux-hardened] 4.14.6.a-1 freezes hard during rsync copy of large (>2GB) files over NFS connection
Attached to Project:
Arch Linux
Opened by Gary S. Martin (GaryScottMartin) - Sunday, 17 December 2017, 04:33 GMT
Last edited by Levente Polyak (anthraxx) - Friday, 14 September 2018, 11:37 GMT
Opened by Gary S. Martin (GaryScottMartin) - Sunday, 17 December 2017, 04:33 GMT
Last edited by Levente Polyak (anthraxx) - Friday, 14 September 2018, 11:37 GMT
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Details
Description:
While using rsync to copy files from a local NTFS formatted drive to my NAS over NFS, the system repeatedly froze while moving ISOs and large video files (>2GB). It never froze during the copy of a smaller file. Once frozen the system was unresponsive to mouse or keyboard input. Even the kernel keyboard shortcuts were unresponsive. The only way to recover the system was a hard shoutdown and reboot. The kernel keyboard shortcuts (ALT - SysRq - [e/i/b]) were enabled and worked as expected when the system was not frozen. No freezes occured are rebooting to the (not hardened) linux 4.14.5-1 kernel, even though more than ten large files were copied up to the NAS. Additional info: * linux kernel: linux-hardened 4.14.6.a-1 * The last occurence was at 1948 local (based on time displayed by system post freeze). The journalctl messages immediately preceeding and following that time were: Dec 16 19:44:42 TehachapiMtn kdeinit5[17862]: kf5.kio.kio_file: "Couldn't preserve group for '/net/nas01/mnt/md0/Public/documents/TSP-21-G.pdf'" -- Reboot -- Dec 16 19:56:01 TehachapiMtn kernel: Linux version 4.14.5-1-ARCH (builduser@heftig-19247) (gcc version 7.2.1 20171128 (GCC)) #1 SMP PREEMPT Sun Dec 10 14:50:30 UTC 2017 Steps to reproduce: sudo ionice -c3 rsync -avz '/wdata/Users/Public/Public Videos/' /net/nas01/mnt/md0/Public/media/video This appears to be an ongoing issue with the hardened kernel and may be an upstream issue. Reference: |
This task depends upon
Closed by Levente Polyak (anthraxx)
Friday, 14 September 2018, 11:37 GMT
Reason for closing: No response
Friday, 14 September 2018, 11:37 GMT
Reason for closing: No response
I recently (two weeks ago) moved my /root partition to an SSD. I am using btrfs as the file system for the /root partition. When I try to balance the file system it errors out leaving the following in the syslog:
[ +0.061365] BTRFS warning (device sda1): csum failed root -9 ino 270 off 24629248 csum 0xdaf9872a expected csum 0xc25e6565 mirror 1
[ +0.007077] BTRFS warning (device sda1): csum failed root -9 ino 270 off 24629248 csum 0xdaf9872a expected csum 0xc25e6565 mirror 1
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However, btrfs check reports no errors:
[gary@TehachapiMtn ~]$ sudo btrfs check --force /dev/sda1
[sudo] password for gary:
WARNING: filesystem mounted, continuing because of --force
Checking filesystem on /dev/sda1
UUID: 798dc3ce-fb0c-43f0-b752-087d35e2e90e
checking extents
checking free space cache
checking fs roots
checking csums
checking root refs
found 42964029440 bytes used, no error found
total csum bytes: 41012668
total tree bytes: 870072320
total fs tree bytes: 799784960
total extent tree bytes: 20955136
btree space waste bytes: 203434234
file data blocks allocated: 1505120923648
referenced 36112232448