[Bug 295333] Kernel Panic due to D56675

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=295333

            Bug ID: 295333
           Summary: Kernel Panic due to D56675
           Product: Base System
           Version: 15.1-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: miguel.dias.gomes@protonmail.com

Since https://reviews.freebsd.org/D56675 got merged to stable/15, releng/15.1
and main I've have consistent kernel panics when running some workloads under
/compat/linux.

The backtrace is:

#0  __curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:57
#1  doadump (textdump=<optimized out>) at /usr/src/sys/kern/kern_shutdown.c:399
#2  0xffffffff80b86539 in kern_reboot (howto=260) at
/usr/src/sys/kern/kern_shutdown.c:519
#3  0xffffffff80b86a47 in vpanic (fmt=0xffffffff811f8a11 "%s",
ap=ap@entry=0xfffffe0203f59a40) at /usr/src/sys/kern/kern_shutdown.c:974
#4  0xffffffff80b86873 in panic (fmt=<unavailable>) at
/usr/src/sys/kern/kern_shutdown.c:887
#5  0xffffffff81097fcd in trap_fatal (frame=<optimized out>, eva=<optimized
out>) at /usr/src/sys/amd64/amd64/trap.c:1028
#6  0xffffffff81097fcd in trap_pfault (frame=0xfffffe0203f59ac0,
usermode=false, signo=<optimized out>, ucode=<optimized out>)
#7  <signal handler called>
#8  0xffffffff80c40309 in uipc_ctloutput (so=<optimized out>, sopt=<optimized
out>) at /usr/src/sys/kern/uipc_usrreq.c:2762
#9  0xffffffff80c3579f in sogetopt (so=0xfffffe0203f59c28,
sopt=sopt@entry=0xfffffe0203f59ce8) at /usr/src/sys/kern/uipc_socket.c:4098
#10 0xffffffff80c3ab85 in kern_getsockopt (td=td@entry=0xfffff80507c98000,
s=<optimized out>, level=level@entry=0, name=name@entry=1,
val=val@entry=0xfffffe0203f59d60, valseg=valseg@entry=UIO_SYSSPACE, 
    valsize=0xfffffe0203f59dd4) at /usr/src/sys/kern/uipc_syscalls.c:1330
#11 0xffffffff845986ac in linux_getsockopt (td=0xfffff80507c98000,
args=0xfffff80507c98428) at /usr/src/sys/compat/linux/linux_socket.c:2301
#12 0xffffffff81098606 in syscallenter (td=0xfffff80507c98000) at
/usr/src/sys/amd64/amd64/../../kern/subr_syscall.c:193
#13 amd64_syscall (td=0xfffff80507c98000, traced=0) at
/usr/src/sys/amd64/amd64/trap.c:1267
#14 <signal handler called>
#15 0x0000000801310d2e in ?? ()
Backtrace stopped: Cannot access memory at address 0x88398db68

For reference this happens to me when running unit tests in java 21 under
/compat/linux (base rl9).

If there's a need I can attach the dumps to the ticket (or share it otherwise).

Regards.

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