Package: qemu-system-x86 Version: 1:2.5+dfsg-1 Severity: normal File: /usr/bin/qemu-system-x86_64
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Hi! Since version 2.5, mounting a 9p filesystem segfaults. To reproduce, I use this script: https://github.com/vincentbernat/eudyptula-boot Just run with "eudyptula-boot -o". I have rebuilt qemu with a -dbgsym package and here is a backtrace. For some reason, the threadpool isn't initialized correctly. #0 thread_pool_submit_aio (pool=0x0, func=0x5603970a9890 <coroutine_enter_func>, arg=0x560399063120, cb=<optimized out>, opaque=<optimized out>) at /build/qemu-2.5+dfsg/thread-pool.c:246 req = 0x560398f6c780 #1 0x00005603971d3a0d in aio_bh_call (bh=<optimized out>) at /build/qemu-2.5+dfsg/async.c:64 No locals. #2 aio_bh_poll (ctx=ctx@entry=0x560398f2dcf0) at /build/qemu-2.5+dfsg/async.c:92 bh = <optimized out> bhp = <optimized out> next = 0x56039a05f720 ret = 1 #3 0x00005603971e0400 in aio_dispatch (ctx=0x560398f2dcf0) at /build/qemu-2.5+dfsg/aio-posix.c:305 node = <optimized out> progress = false #4 0x00005603971d37ae in aio_ctx_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at /build/qemu-2.5+dfsg/async.c:231 ctx = <optimized out> #5 0x00007f538bc5dfe7 in g_main_dispatch (context=0x560398f2e0e0) at /build/glib2.0-ocmJ1Y/glib2.0-2.46.2/./glib/gmain.c:3154 dispatch = 0x5603971d37a0 <aio_ctx_dispatch> prev_source = 0x0 was_in_call = 0 user_data = 0x0 callback = 0x0 cb_funcs = <optimized out> cb_data = <optimized out> need_destroy = <optimized out> source = 0x560398f2dcf0 current = 0x560398f03080 i = 0 #6 g_main_context_dispatch (context=context@entry=0x560398f2e0e0) at /build/glib2.0-ocmJ1Y/glib2.0-2.46.2/./glib/gmain.c:3769 No locals. #7 0x00005603971ded5b in glib_pollfds_poll () at /build/qemu-2.5+dfsg/main-loop.c:211 context = 0x560398f2e0e0 pfds = <optimized out> #8 os_host_main_loop_wait (timeout=<optimized out>) at /build/qemu-2.5+dfsg/main-loop.c:256 ret = 0 spin_counter = 1 #9 main_loop_wait (nonblocking=<optimized out>) at /build/qemu-2.5+dfsg/main-loop.c:504 ret = 0 timeout = 4294967295 timeout_ns = <optimized out> #10 0x0000560396f63074 in main_loop () at /build/qemu-2.5+dfsg/vl.c:1927 nonblocking = <optimized out> last_io = 1 #11 main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) at /build/qemu-2.5+dfsg/vl.c:4683 i = <optimized out> snapshot = <optimized out> linux_boot = <optimized out> initrd_filename = <optimized out> kernel_filename = <optimized out> kernel_cmdline = <optimized out> boot_order = 0x560397277f02 "cad" boot_once = <optimized out> ds = <optimized out> cyls = <optimized out> heads = <optimized out> secs = <optimized out> translation = <optimized out> hda_opts = <optimized out> opts = 0x0 icount_opts = <optimized out> olist = <optimized out> optind = 43 optarg = 0x0 loadvm = <optimized out> machine_class = 0x560398f03100 cpu_model = <optimized out> vga_model = 0x0 qtest_chrdev = <optimized out> qtest_log = <optimized out> pid_file = <optimized out> incoming = <optimized out> defconfig = <optimized out> userconfig = 144 log_mask = <optimized out> log_file = <optimized out> trace_events = <optimized out> trace_file = <optimized out> maxram_size = <optimized out> ram_slots = <optimized out> vmstate_dump_file = <optimized out> main_loop_err = 0x0 err = 0x0 __func__ = "main" - -- System Information: Debian Release: stretch/sid APT prefers unstable APT policy: (500, 'unstable'), (101, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.4.0-rc4-amd64 (SMP w/4 CPU cores) Locale: LANG=fr_FR.utf8, LC_CTYPE=fr_FR.utf8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages qemu-system-x86 depends on: ii ipxe-qemu 1.0.0+git-20150424.a25a16d-1 ii libaio1 0.3.110-2 ii libasound2 1.0.29-1 ii libbluetooth3 5.36-1 ii libbrlapi0.6 5.2~20141018-5+b2 ii libc6 2.21-4 ii libcacard0 1:2.5.0-2 ii libfdt1 1.4.0+dfsg-2 ii libgcc1 1:5.3.1-3 ii libglib2.0-0 2.46.2-1 ii libgnutls-deb0-28 3.3.18-1 ii libjpeg62-turbo 1:1.4.1-2 ii libncurses5 6.0+20151024-2 ii libnettle6 3.1.1-4 ii libpixman-1-0 0.33.4-1 ii libpng12-0 1.2.54-1 ii libpulse0 7.1-2 ii libsasl2-2 2.1.26.dfsg1-14+b1 ii libsdl1.2debian 1.2.15-12 ii libseccomp2 2.2.3-2 ii libspice-server1 0.12.6-4 ii libtinfo5 6.0+20151024-2 ii libusb-1.0-0 2:1.0.20-1 ii libusbredirparser1 0.7-1 ii libuuid1 2.27.1-1 ii libvdeplug2 2.3.2+r586-2+b1 ii libx11-6 2:1.6.3-1 ii libxen-4.6 4.6.0-1 ii libxenstore3.0 4.6.0-1 ii qemu-system-common 1:2.5+dfsg-1 ii seabios 1.8.2-1 ii zlib1g 1:1.2.8.dfsg-2+b1 Versions of packages qemu-system-x86 recommends: ii qemu-utils 1:2.5+dfsg-1 Versions of packages qemu-system-x86 suggests: ii kmod 21-1 ii ovmf 0~20150106.5c2d456b-2 ii qemu-block-extra 1:2.5+dfsg-1 pn samba <none> ii sgabios 0.0~svn8-3 ii vde2 2.3.2+r586-2+b1 - 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