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Date:      Sun, 11 Apr 2021 16:50:30 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 254982] Kernel panic when building packages via clang
Message-ID:  <bug-254982-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D254982

            Bug ID: 254982
           Summary: Kernel panic when building packages via clang
           Product: Base System
           Version: 12.2-STABLE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: bin
          Assignee: bugs@FreeBSD.org
          Reporter: admin@support.od.ua

Created attachment 224029
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D224029&action=
=3Dedit
core.txt.2

# uname -a
FreeBSD mary-teresa.XXX.ua 12.2-STABLE FreeBSD 12.2-STABLE #0 r368992M: Tue=
 Jan
12 03:49:03 EET 2021=20=20=20=20
root@mary-teresa.XXX.ua:/usr/obj/usr/src/amd64.amd64/sys/mary-teresa.XXX.ua=
.5=20
amd64

# uname -KU
1202505 1202505



Unread portion of the kernel message buffer:


Fatal trap 12: page fault while in kernel mode
cpuid =3D 2; apic id =3D 02
fault virtual address   =3D 0x800010
fault code              =3D supervisor write data, page not present
instruction pointer     =3D 0x20:0xffffffff81234548
stack pointer           =3D 0x28:0xfffffe002abfda60
frame pointer           =3D 0x28:0xfffffe002abfdb50
code segment            =3D base 0x0, limit 0xfffff, type 0x1b
                        =3D DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags        =3D interrupt enabled, resume, IOPL =3D 0
current process         =3D 66405 (c++)
trap number             =3D 12
panic: page fault
cpuid =3D 2
time =3D 1618129843
Uptime: 89d0h44m48s
Dumping 2628 out of 8115 MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%..9=
1%

Reading symbols from /usr/lib/debug/boot/kernel/zfs.ko.debug...done.
Loaded symbols for /usr/lib/debug/boot/kernel/zfs.ko.debug
Reading symbols from /boot/kernel/opensolaris.ko...Reading symbols from
/usr/lib/debug//boot/kernel/opensolaris.ko.debug...done.
done.
Loaded symbols for /boot/kernel/opensolaris.ko
Reading symbols from /boot/kernel/cc_htcp.ko...Reading symbols from
/usr/lib/debug//boot/kernel/cc_htcp.ko.debug...done.
done.
Loaded symbols for /boot/kernel/cc_htcp.ko
Reading symbols from /boot/kernel/acpi_wmi.ko...Reading symbols from
/usr/lib/debug//boot/kernel/acpi_wmi.ko.debug...done.
done.
Loaded symbols for /boot/kernel/acpi_wmi.ko
Reading symbols from /boot/kernel/uhid.ko...Reading symbols from
/usr/lib/debug//boot/kernel/uhid.ko.debug...done.
done.
Loaded symbols for /boot/kernel/uhid.ko
Reading symbols from /boot/kernel/wmt.ko...Reading symbols from
/usr/lib/debug//boot/kernel/wmt.ko.debug...done.
done.
Loaded symbols for /boot/kernel/wmt.ko
Reading symbols from /boot/kernel/tmpfs.ko...Reading symbols from
/usr/lib/debug//boot/kernel/tmpfs.ko.debug...done.
done.
Loaded symbols for /boot/kernel/tmpfs.ko
Reading symbols from /boot/kernel/nullfs.ko...Reading symbols from
/usr/lib/debug//boot/kernel/nullfs.ko.debug...done.
done.
Loaded symbols for /boot/kernel/nullfs.ko
Reading symbols from /boot/kernel/linprocfs.ko...Reading symbols from
/usr/lib/debug//boot/kernel/linprocfs.ko.debug...done.
done.
Loaded symbols for /boot/kernel/linprocfs.ko
Reading symbols from /boot/kernel/linux_common.ko...Reading symbols from
/usr/lib/debug//boot/kernel/linux_common.ko.debug...done.
done.
Loaded symbols for /boot/kernel/linux_common.ko
#0  doadump () at src/sys/amd64/include/pcpu_aux.h:55
55              __asm("movq %%gs:%P1,%0" : "=3Dr" (td) : "n" (offsetof(stru=
ct
pcpu,
(kgdb) list *0xffffffff81234548
0xffffffff81234548 is in pmap_remove_pages
(src/sys/amd64/include/atomic.h:445).
440     ATOMIC_ASM(clear,    short, "andw %w1,%0", "ir", ~v);
441     ATOMIC_ASM(add,      short, "addw %w1,%0", "ir",  v);
442     ATOMIC_ASM(subtract, short, "subw %w1,%0", "ir",  v);
443
444     ATOMIC_ASM(set,      int,   "orl %1,%0",   "ir",  v);
445     ATOMIC_ASM(clear,    int,   "andl %1,%0",  "ir", ~v);
446     ATOMIC_ASM(add,      int,   "addl %1,%0",  "ir",  v);
447     ATOMIC_ASM(subtract, int,   "subl %1,%0",  "ir",  v);
448
449     ATOMIC_ASM(set,      long,  "orq %1,%0",   "er",  v);
Current language:  auto; currently minimal
(kgdb) bt
#0  doadump () at src/sys/amd64/include/pcpu_aux.h:55
#1  0xffffffff80c628a4 in kern_reboot (howto=3D260) at
/usr/src/sys/kern/kern_shutdown.c:451
#2  0xffffffff80c62c94 in vpanic (fmt=3D<value optimized out>, ap=3D<value
optimized out>) at /usr/src/sys/kern/kern_shutdown.c:880
#3  0xffffffff80c62af3 in panic (fmt=3D<value optimized out>) at
/usr/src/sys/kern/kern_shutdown.c:807
#4  0xffffffff81243136 in trap_fatal (frame=3D0xfffffe002abfd9a0, eva=3D838=
8624) at
/usr/src/sys/amd64/amd64/trap.c:921
#5  0xffffffff812434c3 in trap_pfault (frame=3D0xfffffe002abfd9a0,
usermode=3Dfalse, signo=3D0x0, ucode=3D0x0) at src/sys/amd64/include/cpufun=
c.h:424
#6  0xffffffff812428c4 in trap (frame=3D0xfffffe002abfd9a0) at
/usr/src/sys/amd64/amd64/trap.c:405
#7  0xffffffff8121aff8 in calltrap () at
/usr/src/sys/amd64/amd64/exception.S:289
#8  0xffffffff81234548 in pmap_remove_pages (pmap=3D<value optimized out>) =
at
/usr/src/sys/amd64/amd64/pmap.c:7124
#9  0xffffffff810ac75e in vmspace_exit (td=3D0xfffff800b9bf8000) at
/usr/src/sys/vm/vm_map.c:411
#10 0xffffffff80c1d679 in exit1 (td=3D<value optimized out>, rval=3D<value
optimized out>, signo=3D0) at /usr/src/sys/kern/kern_exit.c:399
#11 0xffffffff80c1d11d in sys_sys_exit (td=3D<value optimized out>, uap=3D<=
value
optimized out>) at /usr/src/sys/kern/kern_exit.c:176
#12 0xffffffff81243d47 in amd64_syscall (td=3D0xfffff800b9bf8000, traced=3D=
0) at
src/sys/amd64/amd64/../../kern/subr_syscall.c:144
#13 0xffffffff8121b91e in fast_syscall_common () at
/usr/src/sys/amd64/amd64/exception.S:582
#14 0x0000000004754b2a in ?? ()
Previous frame inner to this frame (corrupt stack?)

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