add launchpad bug reports without comments

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+qemu-arm-static stuck with 100% CPU when cross-compiling emacs
+
+Hello,
+
+I'm trying to build multi-arch docker images for https://hub.docker.com/r/silex/emacs.
+
+Here is the machine I'm building on:
+
+root@ubuntu-4gb-fsn1-1:~# lsb_release -a
+No LSB modules are available.
+Distributor ID: Ubuntu
+Description:    Ubuntu 18.04.3 LTS
+Release:        18.04
+Codename:       bionic
+root@ubuntu-4gb-fsn1-1:~# uname -a
+Linux ubuntu-4gb-fsn1-1 4.15.0-74-generic #84-Ubuntu SMP Thu Dec 19 08:06:28 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
+
+Whenever I try to build the following alpine Dockerfile https://gitlab.com/Silex777/docker-emacs/blob/master/26.3/alpine/3.9/dev/Dockerfile with this command:
+
+$ docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
+$ docker build --pull -t test --platform arm .
+
+It builds fine until this:
+
+root@ubuntu-4gb-fsn1-1:~# ps -ef | grep qemu
+root     26473 26465 99 14:26 pts/0    01:59:58 /usr/bin/qemu-arm-static ../src/bootstrap-emacs -batch --no-site-file --no-site-lisp --eval (setq load-prefer-newer t) -f batch-byte-compile emacs-lisp/macroexp.el
+
+This is supposed to take a few seconds, but in practice it takes 100% CPU and never ends. When I strace the process I see this:
+
+getdents64(5, /* 0 entries */, 2048)    = 0
+lseek(5, 0, SEEK_SET)                   = 0
+getdents64(5, /* 5 entries */, 2048)    = 120
+tgkill(5875, 5878, SIGRT_2)             = -1 EAGAIN (Resource temporarily unavailable)
+getdents64(5, /* 0 entries */, 2048)    = 0
+lseek(5, 0, SEEK_SET)                   = 0
+getdents64(5, /* 5 entries */, 2048)    = 120
+tgkill(5875, 5878, SIGRT_2)             = -1 EAGAIN (Resource temporarily unavailable)
+getdents64(5, /* 0 entries */, 2048)    = 0
+lseek(5, 0, SEEK_SET)                   = 0
+getdents64(5, /* 5 entries */, 2048)    = 120
+tgkill(5875, 5878, SIGRT_2)             = -1 EAGAIN (Resource temporarily unavailable)
+getdents64(5, /* 0 entries */, 2048)    = 0
+lseek(5, 0, SEEK_SET)                   = 0
+getdents64(5, /* 5 entries */, 2048)    = 120
+tgkill(5875, 5878, SIGRT_2)             = -1 EAGAIN (Resource temporarily unavailable)
+getdents64(5, /* 0 entries */, 2048)    = 0
+lseek(5, 0, SEEK_SET)                   = 0
+getdents64(5, /* 5 entries */, 2048)    = 120
+tgkill(5875, 5878, SIGRT_2)             = -1 EAGAIN (Resource temporarily unavailable)
+
+It happens with all the QEMU versions I tested: 
+- 2.11.1 (OS version)
+- 4.1.1-1 (from multiarch/qemu-user-static:4.1.1-1)
+- 4.2.0-2 (from multiarch/qemu-user-static)
+
+Any ideas of what I could do to debug it further?
+
+Kind regards,
+Philippe
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