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  • Consistent Kernel Errors and System Crashes on Unraid 6.12.8 with ZFS Operations

    • Urgent

    Hello everyone,

    I've been experiencing consistent kernel errors and system crashes on my Unraid setup (version 6.12.8) that seem to revolve around ZFS operations and memory handling issues. Below, I've detailed the symptoms, hardware specifics, and logs for reference.

    System Information:

    Unraid Version: 6.12.8

    Hardware: ASUSTeK COMPUTER INC. System Product Name/Pro WS W680-ACE IPMI, BIOS version 3101 dated 12/08/2023.

    Storage: ZFS file system in use


    The system encounters kernel NULL pointer dereferences and page faults leading to crashes.

    Errors often mention ZFS-related operations.

    Mutex lock failures are frequently observed in the log right before a crash.

    Error Logs: I've condensed the logs to highlight key errors below:

    BUG: kernel NULL pointer dereference, address: 0000000000000020

    BUG: unable to handle page fault for address: 000000000001cb80

    Involvement of ZFS modules like rrw_exit, zfs_getattr_fast, buf_hash_remove, and arc_change_state.constprop.0

    Repeated failures around mutex_lock

    Attempts to Resolve:

    - 80+ hour memtest, changed out memory completely, reseated CPU, boot in safe mode, etc


    I am seeking advice on further troubleshooting steps and any known fixes for these issues. Has anyone experienced similar problems or have insights into potential causes and solutions? Any help or guidance would be greatly appreciated.

    Thank you in advance!


    User Feedback

    Recommended Comments

    Possibly a problem with one of the existing zfs filesystems, but since you have multiple, it may not be easy to find out which, I would probably start with the pool.

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