Re: [Qemu-devel] Bug AioContext polling is not implemented on Windows with qemu-system-ppc.exe

[Howard Spoelstra]

On Wed, Mar 21, 2018 at 5:25 PM, Paolo Bonzini <address@hidden> wrote:
> On 21/03/2018 17:23, Howard Spoelstra wrote:
>> warning: FTH: (10844): *** Fault tolerant heap shim applied to current
>> process. This is usually due to previous crashes. ***
>> [New Thread 10844.0x1224]
>> [New Thread 10844.0x2a30]
>> [New Thread 10844.0x2594]
>> [New Thread 10844.0x32a8]
>>
>> Thread 1 hit Breakpoint 1, aio_context_set_poll_params (ctx=0xc14a9b0,
>> max_ns=32768, grow=0, shrink=0, errp=0x362f968)
>>     at util/aio-win32.c:413
>> 413     in util/aio-win32.c
>> (gdb) s
>> error_setg_internal (errp=0x362f968, src=0xe166e0 <__func__.58569+32>
>> "util/aio-win32.c", line=413,
>>     func=0xe16740 <__func__.59050> "aio_context_set_poll_params",
>>     fmt=0xe16708 <__func__.58569+72> "AioContext polling is not
>> implemented on Windows") at util/error.c:91
>> 91      util/error.c: No such file or directory.
>> (gdb) s
>> 94      in util/error.c
>
> Great!  Now do "bt".
>
> Paolo

(gdb) bt full
#0  aio_context_set_poll_params (ctx=0xc16a9b0, max_ns=32768, grow=0,
shrink=0, errp=0x362f968) at util/aio-win32.c:413
        __func__ = "aio_context_set_poll_params"
#1  0x00000000005f7563 in iothread_complete (obj=0xc16a290,
errp=0x362fa50) at iothread.c:143
        local_error = 0x0
        iothread = 0xc16a290
        __func__ = "iothread_complete"
        name = 0xde8be9 <container_info+265> "user-creatable"
        thread_name = 0x400000000 <error: Cannot access memory at
address 0x400000000>
#2  0x0000000000831716 in user_creatable_complete (obj=0xc16a290,
errp=0x362fa50) at qom/object_interfaces.c:24
        ucc = 0x7fec650
        uc = 0xc16a290
        __func__ = "user_creatable_complete"
#3  0x000000000082cde1 in object_new_with_propv (typename=0xc4b14b
<__func__.56984+43> "iothread", parent=0xc169e50,
    id=0xc12494 <__emutls_t.iothread_locked+19167> "mon_iothread",
errp=0x14ae260 <error_abort>, vargs=0x362fb20 "")
    at qom/object.c:555
        obj = 0xc16a290
        klass = 0x7fec020
        local_err = 0x0
        __func__ = "object_new_with_propv"
#4  0x000000000082cc67 in object_new_with_props (typename=0xc4b14b
<__func__.56984+43> "iothread", parent=0xc169e50,
    id=0xc12494 <__emutls_t.iothread_locked+19167> "mon_iothread",
errp=0x14ae260 <error_abort>) at qom/object.c:516
        vargs = 0x362fb20 ""
        obj = 0xd34e26fdf887
#5  0x00000000005f7ced in iothread_create (id=0xc12494
<__emutls_t.iothread_locked+19167> "mon_iothread",
---Type <return> to continue, or q <return> to quit---
    errp=0x14ae260 <error_abort>) at iothread.c:352
        obj = 0x45bef7 <sortcmdlist+137>
        __func__ = "iothread_create"
#6  0x000000000045bf53 in monitor_iothread_init () at
/home/hsp/src/qemu-master/monitor.c:4436
No locals.
#7  0x000000000045bfcb in monitor_init_globals () at
/home/hsp/src/qemu-master/monitor.c:4464
No locals.
#8  0x00000000006064d5 in qemu_main (argc=28, argv=0x5679620,
envp=0x0) at vl.c:4545
        i = 1
        snapshot = 0
        linux_boot = 0
        initrd_filename = 0x0
        kernel_filename = 0x0
        kernel_cmdline = 0xc4e286 <runstate_transitions_def+6918> ""
        boot_order = 0x57052c0 "d"
        boot_once = 0x0
        ds = 0x7ff94aced24c
        opts = 0x5705100
        machine_opts = 0x5705560
        icount_opts = 0x0
        accel_opts = 0x0
        olist = 0xa6e000 <qemu_machine_opts>
        optind = 28
        optarg = 0x56793dd "file=c:\\Mac-disks\\9.2.img,format=raw,media=disk"
---Type <return> to continue, or q <return> to quit---
        loadvm = 0x0
        machine_class = 0x7fb28f0
        cpu_model = 0x0
        vga_model = 0x0
        qtest_chrdev = 0x0
        qtest_log = 0x0
        pid_file = 0x0
        incoming = 0x0
        userconfig = true
        nographic = false
        display_remote = 0
        log_mask = 0x0
        log_file = 0x0
        trace_file = 0x0
        maxram_size = 268435456
        ram_slots = 0
        vmstate_dump_file = 0x0
        main_loop_err = 0x0
        err = 0x0
        list_data_dirs = false
        dir = 0x8026a80 "c:\\qemu-master"
        dirs = 0x8026980
        bdo_queue = {sqh_first = 0x0, sqh_last = 0x362fda0}
        __func__ = "qemu_main"
---Type <return> to continue, or q <return> to quit---
#9  0x00000000005fc507 in SDL_main (argc=28, argv=0x5679620) at vl.c:43
No locals.
#10 0x000000000096e4e8 in main_getcmdline ()
No symbol table info available.
#11 0x00000000004013f7 in __tmainCRTStartup () at ../crt/crtexe.c:334
        lock_free = <optimized out>
        fiberid = <optimized out>
        nested = <optimized out>
        lpszCommandLine = <optimized out>
        StartupInfo = {cb = 104, lpReserved = 0x5787680 "", lpDesktop
= 0x57881f0 "Winsta0\\Default",
          lpTitle = 0x578c000 "c:\\qemu-master\\qemu-system-ppc.exe",
dwX = 0, dwY = 0, dwXSize = 0, dwYSize = 0,
          dwXCountChars = 0, dwYCountChars = 0, dwFillAttribute = 0,
dwFlags = 0, wShowWindow = 0, cbReserved2 = 0,
          lpReserved2 = 0x0, hStdInput = 0xffffffffffffffff,
hStdOutput = 0xffffffffffffffff,
          hStdError = 0xffffffffffffffff}
        inDoubleQuote = <optimized out>
#12 0x00000000004014fb in WinMainCRTStartup () at ../crt/crtexe.c:184
        ret = 255
(gdb)

Finally ;-)

Best,
Howard