Re: [Qemu-devel] [PATCH v3 00/17] tcg: tb_lock removal redux v3

[Richard Henderson <richard.henderson@linaro.org>]

On 05/30/2018 03:46 PM, Richard Henderson wrote:
> Thanks.  Queued to tcg-next.
Hmph.  Unqueued, at least for now.

ERROR:/home/rth/work/qemu/qemu/accel/tcg/translate-all.c:615:page_unlock__debug:
assertion failed: (page_is_locked(pd))

#3  0x00007ffff4b6915e in g_assertion_message_expr ()
    at /lib64/libglib-2.0.so.0
#4  0x000055555583c088 in page_unlock__debug (pd=0x7fffa423aa80)
    at /home/rth/work/qemu/qemu/accel/tcg/translate-all.c:615
#5  0x000055555583c1be in page_unlock (pd=0x7fffa423aa80)
    at /home/rth/work/qemu/qemu/accel/tcg/translate-all.c:661
#6  0x000055555583c2ef in page_entry_destroy (p=0x7fffa8024460)
    at /home/rth/work/qemu/qemu/accel/tcg/translate-all.c:694
#7  0x00007ffff4b6f448 in  () at /lib64/libglib-2.0.so.0
#8  0x00007ffff4b6fea2 in g_tree_destroy () at /lib64/libglib-2.0.so.0
#9  0x000055555583c791 in page_collection_unlock (set=0x7fffa802eba0)
    at /home/rth/work/qemu/qemu/accel/tcg/translate-all.c:842
#10 0x00005555557b301a in memory_notdirty_write_complete (ndi=0x7fffd9cf6050)
    at /home/rth/work/qemu/qemu/exec.c:2495
#11 0x00005555557b317f in notdirty_mem_write (opaque=0x0, ram_addr=12334096,
val=18446739675675374544, size=8) at /home/rth/work/qemu/qemu/exec.c:2535
#12 0x000055555580f14b in memory_region_write_accessor (mr=0x5555562a38a0
<io_mem_notdirty>, addr=12334096, value=0x7fffd9cf6178, size=8, shift=0,
mask=18446744073709551615, attrs=...) at /home/rth/work/qemu/qemu/memory.c:530
#13 0x000055555580f360 in access_with_adjusted_size (addr=12334096,
value=0x7fffd9cf6178, size=8, access_size_min=1, access_size_max=8, access_fn=
    0x55555580f061 <memory_region_write_accessor>, mr=0x5555562a38a0
<io_mem_notdirty>, attrs=...) at /home/rth/work/qemu/qemu/memory.c:597
#14 0x0000555555811cef in memory_region_dispatch_write (mr=0x5555562a38a0
<io_mem_notdirty>, addr=12334096, data=18446739675675374544, size=8, attrs=...)
    at /home/rth/work/qemu/qemu/memory.c:1474
#15 0x0000555555825d73 in io_writex (env=0x555556869090,
iotlbentry=0x555556870520, mmu_idx=0, val=18446739675675374544,
addr=18446739675675374608, retaddr=140736231479305, size=8) at
/home/rth/work/qemu/qemu/accel/tcg/cputlb.c:813
#16 0x0000555555828b6d in io_writeq (env=0x555556869090, mmu_idx=0, index=225,
val=18446739675675374544, addr=18446739675675374608, retaddr=140736231479305)
    at /home/rth/work/qemu/qemu/accel/tcg/softmmu_template.h:265
#17 0x0000555555828d2c in helper_le_stq_mmu (env=0x555556869090,
addr=18446739675675374608, val=18446739675675374544, oi=48,
retaddr=140736231479305)
    at /home/rth/work/qemu/qemu/accel/tcg/softmmu_template.h:301
#18 0x00007fffb5159809 in code_gen_buffer ()

I can invoke similar crashes with just about every image I try.


r~