Issue #2934 has been updated by peeter.
x/a gives this (just hitting enter, i.e. not specifying an address after the
first one). Does this help? I can go further if needed:
---
(kgdb) bt
#0 _get_mycpu () at ./machine/thread.h:69
#1 panic (fmt=fmt@entry=0xffffffff80b368e0 "assertion \"%s\" failed in %s at
%s:%u") at /usr/src/sys/kern/kern_shutdown.c:833
#2 0xffffffff806145d2 in dfly_schedulerclock (lp=<optimized out>,
period=<optimized out>, cpstamp=<optimized out>)
at /usr/src/sys/kern/usched_dfly.c:757
#3 0xffffffff8060e5ef in usched_schedulerclock (lp=lp@entry=0x0,
periodic=2130068, time=2891606236)
at /usr/src/sys/kern/kern_usched.c:160
#4 0xffffffff805e0a8f in schedclock (info=0xffffffff81615630
<CPU_prvspace_bsp+9776>, in_ipi=<optimized out>,
frame=<optimized out>) at /usr/src/sys/kern/kern_clock.c:914
#5 0xffffffff806050d2 in systimer_intr (timep=timep@entry=0xffffffe328baf5ec,
in_ipi=in_ipi@entry=0, frame=frame@entry=0x0)
at /usr/src/sys/kern/kern_systimer.c:100
#6 0xffffffff8060573a in pcpu_timer_process_oncpu (gd=0xffffffff81613000
<CPU_prvspace_bsp>, frame=frame@entry=0x0)
at /usr/src/sys/kern/kern_cputimer.c:599
#7 0xffffffff80605e6e in pcpu_timer_process () at
/usr/src/sys/kern/kern_cputimer.c:605
#8 0xffffffff809f5ce4 in splz_timer () at
/usr/src/sys/platform/pc64/x86_64/ipl.s:453
#9 0x0000000000000000 in ?? ()
(kgdb) frame 7
#7 0xffffffff80605e6e in pcpu_timer_process () at
/usr/src/sys/kern/kern_cputimer.c:605
605 pcpu_timer_process_oncpu(mycpu, NULL);
(kgdb) info regi
rax *value not available*
rbx 0xffffffe1e105ef80 -129368723584
rcx *value not available*
rdx *value not available*
rsi *value not available*
rdi *value not available*
rbp 0xffffffe328baf610 0xffffffe328baf610
rsp 0xffffffe328baf610 0xffffffe328baf610
r8 *value not available*
r9 *value not available*
r10 *value not available*
r11 *value not available*
r12 0xffffffe00ec63558 -137191082664
r13 0xffffffff8085f3d1 -2138704943
r14 0x0 0
r15 0x0 0
rip 0xffffffff80605e6e 0xffffffff80605e6e
<pcpu_timer_process+23>
eflags *value not available*
cs *value not available*
ss *value not available*
ds *value not available*
es *value not available*
fs *value not available*
gs *value not available*
(kgdb) x/a 0xffffffe328baf610
0xffffffe328baf610: 0xffffffe328baf640
(kgdb)
0xffffffe328baf618: 0xffffffff809f5ce4 <splz_timer+19>
(kgdb)
0xffffffe328baf620: 0x0
(kgdb)
0xffffffe328baf628: 0xffffffe328baf6e0
(kgdb)
0xffffffe328baf630: 0x297
(kgdb)
0xffffffe328baf638: 0xffffffff80618ef9 <lwkt_user_yield+37>
(kgdb)
0xffffffe328baf640: 0xffffffe328baf660
(kgdb)
0xffffffe328baf648: 0xffffffff8085acb4 <vm_object_page_remove_callback+31>
(kgdb)
0xffffffe328baf650: 0xffffffe00ec63558
(kgdb)
0xffffffe328baf658: 0xffffffe328baf6e0
(kgdb)
0xffffffe328baf660: 0xffffffe328baf6d0
(kgdb)
0xffffffe328baf668: 0xffffffff8085ec5e <vm_page_rb_tree_RB_SCAN+252>
(kgdb)
0xffffffe328baf670: 0xb0
(kgdb)
0xffffffe328baf678: 0xffffffff814bcdd8 <kernel_object+56>
(kgdb)
0xffffffe328baf680: 0xffffffff814bcdc8 <kernel_object+40>
(kgdb)
0xffffffe328baf688: 0xffffffff8085ac95 <vm_object_page_remove_callback>
(kgdb)
0xffffffe328baf690: 0x0
(kgdb)
0xffffffe328baf698: 0xffffffe00ebc6dc0
(kgdb)
0xffffffe328baf6a0: 0xfffffffffe4144e0
(kgdb)
0xffffffe328baf6a8: 0xffffffff814bcda0 <kernel_object>
(kgdb)
0xffffffe328baf6b0: 0xffffffff814bcdc8 <kernel_object+40>
(kgdb)
0xffffffe328baf6b8: 0xffffffff814bce08 <kernel_object+104>
(kgdb)
0xffffffe328baf6c0: 0x0
(kgdb)
0xffffffe328baf6c8: 0x0
(kgdb)
0xffffffe328baf6d0: 0xffffffe328baf770
(kgdb)
0xffffffe328baf6d8: 0xffffffff8085e014 <vm_object_page_remove+217>
(kgdb)
0xffffffe328baf6e0: 0xfffffffffe4144e0
(kgdb)
0xffffffe328baf6e8: 0xfffffffffe4144ff
(kgdb)
0xffffffe328baf6f0: 0xffffffe300000000
(kgdb)
0xffffffe328baf6f8: 0xffffffff00000000
(kgdb)
0xffffffe328baf700: 0xffffffe328baf740
(kgdb)
0xffffffe328baf708: 0xffffffff808601c2 <vm_page_wakeup+96>
(kgdb)
0xffffffe328baf710: 0xffffffe00ec63558
(kgdb)
0xffffffe328baf718: 0xffffffff814bcda0 <kernel_object>
(kgdb)
0xffffffe328baf720: 0xffffffe328baf770
(kgdb)
0xffffffe328baf728: 0xffffffff80851595 <vm_fault_unwire+267>
(kgdb)
0xffffffe328baf730: 0xffffffff813951f0 <kernel_map+240>
(kgdb)
0xffffffe328baf738: 0xffffffff814bcda0 <kernel_object>
(kgdb)
0xffffffe328baf740: 0xffffffff81395100 <kernel_map>
(kgdb)
0xffffffe328baf748: 0xffffffff814bcda0 <kernel_object>
(kgdb)
0xffffffe328baf750: 0xffffffff81395100 <kernel_map>
(kgdb)
0xffffffe328baf758: 0xffffffe414500000
(kgdb)
0xffffffe328baf760: 0xffffffff8140f548 <map_entry_init+258024>
(kgdb)
0xffffffe328baf768: 0xffffffff8141f6d8 <map_entry_init+323960>
(kgdb)
0xffffffe328baf770: 0xffffffe328baf810
(kgdb)
0xffffffe328baf778: 0xffffffff808566a7 <vm_map_delete+517>
(kgdb)
0xffffffe328baf780: 0xffffffff813951f0 <kernel_map+240>
(kgdb)
0xffffffe328baf788: 0xffffffff81395168 <kernel_map+104>
(kgdb)
0xffffffe328baf790: 0xfffffffffe414500
(kgdb)
0xffffffe328baf798: 0xffffffff81395100 <kernel_map>
(kgdb)
0xffffffe328baf7a0: 0xffffffff81395188 <kernel_map+136>
(kgdb)
0xffffffe328baf7a8: 0xffffffe328baf82c
(kgdb)
0xffffffe328baf7b0: 0xffffffe4144e0000
(kgdb)
0xffffffe328baf7b8: 0x20
(kgdb)
0xffffffe328baf7c0: 0xfffffffffe4144e0
(kgdb)
0xffffffe328baf7c8: 0xffffffe414500000
(kgdb)
0xffffffe328baf7d0: 0x0
(kgdb)
0xffffffe328baf7d8: 0xffffffff8140f548 <map_entry_init+258024>
(kgdb)
0xffffffe328baf7e0: 0xffffffe328baf810
(kgdb)
0xffffffe328baf7e8: 0xffffffff81395100 <kernel_map>
(kgdb)
0xffffffe328baf7f0: 0xffffffff81395188 <kernel_map+136>
(kgdb)
0xffffffe328baf7f8: 0xffffffe414500000
(kgdb)
0xffffffe328baf800: 0xffffffe4144e0000
(kgdb)
0xffffffe328baf808: 0xffffffff81613000 <CPU_prvspace_bsp>
(kgdb)
0xffffffe328baf810: 0xffffffe328baf850
(kgdb)
0xffffffe328baf818: 0xffffffff8085690d <vm_map_remove+105>
(kgdb)
0xffffffe328baf820: 0x189d
(kgdb)
0xffffffe328baf828: 0x228baf8b0
(kgdb)
0xffffffe328baf830: 0xffffffff82256a60 <M_ACPITASK>
(kgdb)
0xffffffe328baf838: 0x58
(kgdb)
0xffffffe328baf840: 0xffffffe4144e0000
(kgdb)
0xffffffe328baf848: 0xffffffff81613000 <CPU_prvspace_bsp>
(kgdb)
0xffffffe328baf850: 0xffffffe328baf860
(kgdb)
0xffffffe328baf858: 0xffffffff80602e74 <kmem_slab_free+43>
(kgdb)
0xffffffe328baf860: 0xffffffe328baf8c0
(kgdb)
0xffffffe328baf868: 0xffffffff80603683 <kmalloc+530>
(kgdb)
0xffffffe328baf870: 0xffffffe0380f8808
(kgdb)
0xffffffe328baf878: 0xffffffe0380f8814
(kgdb)
0xffffffe328baf880: 0xffffffe328baf8b0
(kgdb)
0xffffffe328baf888: 0x130282226b6a
(kgdb)
0xffffffe328baf890: 0xffffffff82259298 <AcpiGbl_XPm1aEnable>
(kgdb)
0xffffffe328baf898: 0x2
(kgdb)
0xffffffe328baf8a0: 0xffffffe338cd8a90
(kgdb)
0xffffffe328baf8a8: 0xffffffff8221b962 <AcpiEvAsynchExecuteGpeMethod>
(kgdb)
0xffffffe328baf8b0: 0x66
(kgdb)
0xffffffe328baf8b8: 0x990
(kgdb)
0xffffffe328baf8c0: 0xffffffe328baf8f0
(kgdb)
0xffffffe328baf8c8: 0xffffffff8224db6e <AcpiOsExecute+61>
(kgdb)
0xffffffe328baf8d0: 0xffffffe338cd8a90
(kgdb)
0xffffffe328baf8d8: 0xffffffe338cd8a90
(kgdb)
0xffffffe328baf8e0: 0x66
(kgdb)
0xffffffe328baf8e8: 0xffffffe037f23bf8
(kgdb)
0xffffffe328baf8f0: 0xffffffe328baf920
(kgdb)
0xffffffe328baf8f8: 0xffffffff8221bb32 <AcpiEvGpeDispatch+241>
(kgdb)
0xffffffe328baf900: 0xffffffe328baf968
(kgdb)
0xffffffe328baf908: 0xffffffe338cd8100
(kgdb)
0xffffffe328baf910: 0x6
(kgdb)
0xffffffe328baf918: 0x40
(kgdb)
0xffffffe328baf920: 0xffffffe328baf9a0
(kgdb)
0xffffffe328baf928: 0xffffffff8221bd07 <AcpiEvGpeDetect+371>
(kgdb)
0xffffffe328baf930: 0x0
(kgdb)
0xffffffe328baf938: 0x0
(kgdb)
0xffffffe328baf940: 0xc
(kgdb)
0xffffffe328baf948: 0xffffffe0380f8808
(kgdb)
0xffffffe328baf950: 0xffffffe328bf35e0
(kgdb)
0xffffffe328baf958: 0xffffffe037f23bf8
(kgdb)
0xffffffe328baf960: 0xffffffe1e105ea00
(kgdb)
0xffffffe328baf968: 0x4000000046
(kgdb)
0xffffffe328baf970: 0xffffffe1e105ef80
(kgdb)
0xffffffe328baf978: 0x0
(kgdb)
0xffffffe328baf980: 0xffffffe037ec42e0
(kgdb)
0xffffffe328baf988: 0xffffffff81613000 <CPU_prvspace_bsp>
(kgdb)
0xffffffe328baf990: 0x0
(kgdb)
0xffffffe328baf998: 0xffffffe1e105f178
(kgdb)
0xffffffe328baf9a0: 0xffffffe328baf9c0
(kgdb)
0xffffffe328baf9a8: 0xffffffff8221dc55 <AcpiEvSciXruptHandler+25>
(kgdb)
0xffffffe328baf9b0: 0xffffffe037f02fc0
(kgdb)
0xffffffe328baf9b8: 0x0
(kgdb)
0xffffffe328baf9c0: 0xffffffe328baf9d0
(kgdb)
0xffffffe328baf9c8: 0xffffffff8224d4ab <InterruptWrapper+30>
(kgdb)
0xffffffe328baf9d0: 0xffffffe328bafab0
(kgdb)
0xffffffe328baf9d8: 0xffffffff805d8cef <ithread_handler+592>
(kgdb)
0xffffffe328baf9e0: 0x0
(kgdb)
0xffffffe328baf9e8: 0xffffffe1e0955288
(kgdb)
0xffffffe328baf9f0: 0xffffffe1e0955288
(kgdb)
0xffffffe328baf9f8: 0x9
(kgdb)
0xffffffe328bafa00: 0x0
(kgdb)
0xffffffe328bafa08: 0x288
(kgdb)
0xffffffe328bafa10: 0x0
(kgdb)
0xffffffe328bafa18: 0xffffffe1e0955000
(kgdb)
0xffffffe328bafa20: 0x90000b90c
(kgdb)
0xffffffe328bafa28: 0x1000004b6
(kgdb)
0xffffffe328bafa30: 0x0
(kgdb)
0xffffffe328bafa38: 0x0
(kgdb)
0xffffffe328bafa40: 0x0
(kgdb)
0xffffffe328bafa48: 0x0
(kgdb)
0xffffffe328bafa50: 0x0
(kgdb)
0xffffffe328bafa58: 0x0
(kgdb)
0xffffffe328bafa60: 0x0
(kgdb)
0xffffffe328bafa68: 0x0
(kgdb)
0xffffffe328bafa70: 0x0
(kgdb)
0xffffffe328bafa78: 0x0
(kgdb)
0xffffffe328bafa80: 0xffffffff80fc0240 <thread0>
(kgdb)
0xffffffe328bafa88: 0xffffffff80fc0240 <thread0>
(kgdb)
0xffffffe328bafa90: 0xffffffff81613000 <CPU_prvspace_bsp>
(kgdb)
0xffffffe328bafa98: 0xffffffe328bafac0
(kgdb)
0xffffffe328bafaa0: 0x0
(kgdb)
0xffffffe328bafaa8: 0xffffffe1e0955000
(kgdb)
0xffffffe328bafab0: 0x0
(kgdb)
0xffffffe328bafab8: 0xffffffff806196f3 <lwkt_exit>
(kgdb)
0xffffffe328bafac0: 0x0
(kgdb)
0xffffffe328bafac8: 0x0
(kgdb)
0xffffffe328bafad0: 0x0
(kgdb)
0xffffffe328bafad8: 0x0
(kgdb)
0xffffffe328bafae0: 0x0
(kgdb)
0xffffffe328bafae8: 0x0
(kgdb)
0xffffffe328bafaf0: 0x0
(kgdb)
0xffffffe328bafaf8: 0x0
(kgdb)
0xffffffe328bafb00: 0x0
(kgdb)
0xffffffe328bafb08: 0x0
(kgdb)
0xffffffe328bafb10: 0x0
(kgdb)
0xffffffe328bafb18: 0x0
(kgdb)
0xffffffe328bafb20: 0x9
(kgdb)
0xffffffe328bafb28: 0x0
(kgdb)
0xffffffe328bafb30: 0x0
(kgdb)
0xffffffe328bafb38: 0xffffffff805d8a9f <ithread_handler>
(kgdb)
0xffffffe328bafb40: 0x0
(kgdb)
---
----------------------------------------
Bug #2934: kernel (4.7) panic at buildworld: assertion "gd->gd_spinlocks == 0"
failed
http://bugs.dragonflybsd.org/issues/2934#change-12961
* Author: peeter
* Status: New
* Priority: Normal
* Assignee: dillon
* Category: Kernel
* Target version:
----------------------------------------
Kernel (DragonFly v4.7.0.109.g609bcd-DEVELOPMENT) panics at "make buildworld".
/var/crash/info.1:
---
Panic String: assertion "gd->gd_spinlocks == 0" failed in dfly_schedulerclock
at /usr/src/sys/kern/usched_dfly.c:757
---
kgdb output is attached.
---Files--------------------------------
kgdb.txt.1 (28.7 KB)
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