[Bug 228019] Panic and fsck -p insufficiency

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Sun May 6 11:54:35 UTC 2018


            Bug ID: 228019
           Summary: Panic and fsck -p insufficiency
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs at FreeBSD.org
          Reporter: phk at FreeBSD.org

Created attachment 193083
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=193083&action=edit
photo of LORs + panic messages

AMD64 FreeBSD 12.0-CURRENT #1 r333269: Sat May  5 11:47:44 UTC 2018

While compiling lang/rust

    panic: Bad link elm 0xfffff8042e7cf40 prev->next != elm
    cpuid = 1
    time = 1525606495
    KDB: stack backtrace:
    db_trace_self_wrapper ...
    vpanic() ...
    panic() ...
    vm_pqbatch_process_page() + 0x276
    vm_pqbatch_submit_page() + 0x143
    vm_fault_hold() + 0x1d12

(See attached photo for more)

On reboot into single-user, fsck -p reports a lot of "Incorrect size N -> 0"
and "Link count 2->1" and says the FS is fine, but a fsck without -p finds
numerous files to reattach to lost+found, most of which look like temp files
from the lang/rust compilation.

Filesystem in question is UFS+SU+Trim, bsize=32k, fsize=4k

No kernel dump available unfortunately.

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