Using a binary string as the login banner search expression is fraught with risks. We've seen cases on the autobuilder where "login:" is clearly shown but the code hasn't triggered. The most likely cause is hidden control characters in the output causing the search to fail.
Take the opportunity to remove the horrible binary string search, at the expense of decoding the bootlog multiple times. Tweak the logging so we can know which log was printed (self.msg or bootlog) just in case this isn't the issue and we need more information in future. Signed-off-by: Richard Purdie <[email protected]> --- meta/classes-recipe/testimage.bbclass | 6 +----- meta/lib/oeqa/utils/qemurunner.py | 21 +++++++++++++-------- 2 files changed, 14 insertions(+), 13 deletions(-) diff --git a/meta/classes-recipe/testimage.bbclass b/meta/classes-recipe/testimage.bbclass index 8d2fab21dff..819c7d2bf4c 100644 --- a/meta/classes-recipe/testimage.bbclass +++ b/meta/classes-recipe/testimage.bbclass @@ -189,11 +189,7 @@ def get_testimage_boot_patterns(d): search_login_succeeded,search_cmd_finished\n Make sure your TESTIMAGE_BOOT_PATTERNS=%s \ contains an accepted flag.' % d.getVar('TESTIMAGE_BOOT_PATTERNS')) return - # We know boot prompt is searched through in binary format, others might be expressions - if flag == 'search_reached_prompt': - boot_patterns[flag] = flagval.encode() - else: - boot_patterns[flag] = flagval.encode().decode('unicode-escape') + boot_patterns[flag] = flagval.encode().decode('unicode-escape') return boot_patterns diff --git a/meta/lib/oeqa/utils/qemurunner.py b/meta/lib/oeqa/utils/qemurunner.py index 948f8adc9f1..6a85f57e498 100644 --- a/meta/lib/oeqa/utils/qemurunner.py +++ b/meta/lib/oeqa/utils/qemurunner.py @@ -85,7 +85,7 @@ class QemuRunner: accepted_patterns = ['search_reached_prompt', 'send_login_user', 'search_login_succeeded', 'search_cmd_finished'] default_boot_patterns = defaultdict(str) # Default to the usual paterns used to communicate with the target - default_boot_patterns['search_reached_prompt'] = b' login:' + default_boot_patterns['search_reached_prompt'] = ' login:' default_boot_patterns['send_login_user'] = 'root\n' default_boot_patterns['search_login_succeeded'] = r"root@[a-zA-Z0-9\-]+:~#" default_boot_patterns['search_cmd_finished'] = r"[a-zA-Z0-9]+@[a-zA-Z0-9\-]+:~#" @@ -109,12 +109,15 @@ class QemuRunner: sock.close() raise + def decode_qemulog(self, todecode): + # Sanitize the data received from qemu as it may contain control characters + msg = todecode.decode("utf-8", errors='ignore') + msg = re_control_char.sub('', msg) + return msg + def log(self, msg): if self.logfile: - # It is needed to sanitize the data received from qemu - # because is possible to have control characters - msg = msg.decode("utf-8", errors='ignore') - msg = re_control_char.sub('', msg) + msg = self.decode_qemulog(msg) self.msg += msg with codecs.open(self.logfile, "a", encoding="utf-8") as f: f.write("%s" % msg) @@ -468,7 +471,9 @@ class QemuRunner: self.log(data) data = b'' - if self.boot_patterns['search_reached_prompt'] in bootlog: + + decodedlog = self.decode_qemulog(bootlog) + if self.boot_patterns['search_reached_prompt'] in decodedlog: self.server_socket = qemusock stopread = True reachedlogin = True @@ -488,10 +493,10 @@ class QemuRunner: self.logger.warning("Target didn't reach login banner in %d seconds (%s)" % (self.boottime, time.strftime("%D %H:%M:%S"))) tail = lambda l: "\n".join(l.splitlines()[-25:]) - bootlog = bootlog.decode("utf-8") + bootlog = self.decode_qemulog(bootlog) # in case bootlog is empty, use tail qemu log store at self.msg lines = tail(bootlog if bootlog else self.msg) - self.logger.warning("Last 25 lines of text:\n%s" % lines) + self.logger.warning("Last 25 lines of text (%d):\n%s" % (len(bootlog), lines)) self.logger.warning("Check full boot log: %s" % self.logfile) self._dump_host() self.stop() -- 2.34.1
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