From 44fe106baf5fd5aebe26c5f28004e2b18d839b7c Mon Sep 17 00:00:00 2001
From: Patrick Ohly <patrick.ohly@intel.com>
Date: Mon, 27 Mar 2017 15:03:22 +0200
Subject: oeqa: tolerate interrupted select() while waiting for qemu
Sometimes, the OEQA utility code aborts with:
...
File ".../meta/lib/oeqa/utils/qemurunner.py", line 131, in start
return self.launch(launch_cmd, qemuparams=qemuparams, get_ip=get_ip, extra_bootparams=extra_bootparams)
File ".../meta/lib/oeqa/utils/qemurunner.py", line 259, in launch
sread, swrite, serror = select.select(socklist, [], [], 5)
InterruptedError: [Errno 4] Interrupted system call
strace shows that this is because of a SIGWINCH:
Connection from 127.0.0.1:52668
select(21, [20], [], [], {5, 0}) = ? ERESTARTNOHAND (To be restarted if no handler)
--- SIGWINCH {si_signo=SIGWINCH, si_code=SI_KERNEL} ---
This is related to some special conditions:
* whether qemu opens a graphical console window (enabled in Poky by default)
* where that window gets opened
* whether the window manager changes the size of the shell window (mine
is a tiling window manager and reorders and resizes windows automatically)
Ignoring the interrupted system calls avoids the problem. Code elsewhere (for example,
run() in ssh.py) already does the same thing.
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
---
meta/lib/oeqa/utils/qemurunner.py | 10 ++++++++--
meta/lib/oeqa/utils/qemutinyrunner.py | 5 ++++-
2 files changed, 12 insertions(+), 3 deletions(-)
(limited to 'meta/lib/oeqa')
diff --git a/meta/lib/oeqa/utils/qemurunner.py b/meta/lib/oeqa/utils/qemurunner.py
index 95f59257ca..b7816167e8 100644
--- a/meta/lib/oeqa/utils/qemurunner.py
+++ b/meta/lib/oeqa/utils/qemurunner.py
@@ -256,7 +256,10 @@ class QemuRunner:
bootlog = ''
data = b''
while time.time() < endtime and not stopread:
- sread, swrite, serror = select.select(socklist, [], [], 5)
+ try:
+ sread, swrite, serror = select.select(socklist, [], [], 5)
+ except InterruptedError:
+ continue
for sock in sread:
if sock is self.server_socket:
qemusock, addr = self.server_socket.accept()
@@ -437,7 +440,10 @@ class QemuRunner:
if now >= end:
data += "<<< run_serial(): command timed out after %d seconds without output >>>\r\n\r\n" % timeout
break
- sread, _, _ = select.select([self.server_socket],[],[], end - now)
+ try:
+ sread, _, _ = select.select([self.server_socket],[],[], end - now)
+ except InterruptedError:
+ continue
if sread:
answer = self.server_socket.recv(1024)
if answer:
diff --git a/meta/lib/oeqa/utils/qemutinyrunner.py b/meta/lib/oeqa/utils/qemutinyrunner.py
index b1009a0a37..df5f9ddb82 100644
--- a/meta/lib/oeqa/utils/qemutinyrunner.py
+++ b/meta/lib/oeqa/utils/qemutinyrunner.py
@@ -114,7 +114,10 @@ class QemuTinyRunner(QemuRunner):
stopread = False
endtime = time.time()+timeout
while time.time()<endtime and not stopread:
- sread, _, _ = select.select([self.server_socket],[],[],1)
+ try:
+ sread, _, _ = select.select([self.server_socket],[],[],1)
+ except InterruptedError:
+ continue
for sock in sread:
answer = sock.recv(1024)
if answer:
--
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