crash under load in GENERIC

[Nikolai Lifanov]

On 6/15/17 4:12 PM, Gleb Smirnoff wrote:
>   Nikolai,
> 
> On Wed, Jun 14, 2017 at 10:36:20AM -0400, Nikolai Lifanov wrote:
> N> I haven't nailed it to a specific commit, but some time after
> N> head-319667, my package builder box crashes when running Poudriere.
> N> The earliest version that I can confirm crashes is head-319735.
> 
> Should be fixed in r319988.
> 

Gleb,

After r319988, my system now crashes on boot.

__curthread () at ./machine/pcpu.h:232
232             __asm("movq %%gs:%1,%0" : "=r" (td)
(kgdb) #0  __curthread () at ./machine/pcpu.h:232
#1  doadump (textdump=1) at /usr/src/sys/kern/kern_shutdown.c:318
#2  0xffffffff80a992c7 in kern_reboot (howto=260)
    at /usr/src/sys/kern/kern_shutdown.c:386
#3  0xffffffff80a997c6 in vpanic (fmt=<optimized out>,
ap=0xfffffe2021edf540)
    at /usr/src/sys/kern/kern_shutdown.c:779
#4  0xffffffff80a995e3 in panic (fmt=<unavailable>)
    at /usr/src/sys/kern/kern_shutdown.c:710
#5  0xffffffff80f2f250 in trap_fatal (frame=0xfffffe2021edf7e0, eva=16)
    at /usr/src/sys/amd64/amd64/trap.c:801
#6  0xffffffff80f2f2a9 in trap_pfault (frame=0xfffffe2021edf7e0, usermode=0)
    at /usr/src/sys/amd64/amd64/trap.c:655
#7  0xffffffff80f2eae0 in trap (frame=0xfffffe2021edf7e0)
    at /usr/src/sys/amd64/amd64/trap.c:421
#8  <signal handler called>
#9  udp_get_inpcbinfo (protocol=<optimized out>)
    at /usr/src/sys/netinet/udp_var.h:157
#10 udp6_attach (so=0xfffff8014d648000, proto=17, td=0xfffff8013e086560)
    at /usr/src/sys/netinet6/udp6_usrreq.c:973
#11 0xffffffff80b265d1 in socreate (dom=<optimized out>, aso=<optimized
out>,
    type=<optimized out>, proto=17, cred=0xfffff8011ee32800,
    td=0xfffff8013e086560) at /usr/src/sys/kern/uipc_socket.c:550
#12 0xffffffff80b2e923 in kern_socket (td=<optimized out>, domain=28,
type=2,
    protocol=17) at /usr/src/sys/kern/uipc_syscalls.c:160
#13 0xffffffff80f2fd50 in syscallenter (td=<optimized out>)
    at /usr/src/sys/amd64/amd64/../../kern/subr_syscall.c:132
#14 amd64_syscall (td=0xfffff8013e086560, traced=0)
    at /usr/src/sys/amd64/amd64/trap.c:903
#15 <signal handler called>
#16 0x00000008003de3ba in ?? ()
Backtrace stopped: Cannot access memory at address 0x7fffffffe418

- Nikolai

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