[Bug 252163] r368739/a095390344fb1795c1b118a2f84da8f6a7f254ab causes a panic stating 'Fatal trap 12: page fault while in kernel mode'

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Sat Dec 26 15:59:55 UTC 2020


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=252163

            Bug ID: 252163
           Summary: r368739/a095390344fb1795c1b118a2f84da8f6a7f254ab
                    causes a panic stating 'Fatal trap 12: page fault
                    while in kernel mode'
           Product: Base System
           Version: CURRENT
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs at FreeBSD.org
          Reporter: vidwer+fbsdbugs at gmail.com

Created attachment 220951
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=220951&action=edit
text file with backtrace details gathered by kgdb

This change, see this PRs summary, will crash a machine after inserting
wireless USB (if_rsu, RTL8191S, vendor/device ID 0x0bda:0x8172) hardware.
r368738 / de66c99a works fine, as does hardware using if_rtwn_usb (RTL8188EU,
vendor/device ID 0x0bda:0x8179).

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