From: "'Koch, Stefan' via isar-users" <isar-users@googlegroups.com>
To: "isar-users@googlegroups.com" <isar-users@googlegroups.com>,
"Kiszka, Jan" <jan.kiszka@siemens.com>
Cc: "Schertler, Daniel" <daniel.schertler@siemens.com>,
"Storm, Christian" <christian.storm@siemens.com>,
"ubely@ilbers.de" <ubely@ilbers.de>,
"Becker, Sascha" <becker@siemens.com>,
"Adler, Michael" <michael.adler@siemens.com>,
"MOESSBAUER, Felix" <felix.moessbauer@siemens.com>
Subject: Re: [PATCH 1/1] Fix ZeroDivisionError for kernels without modules
Date: Fri, 17 Apr 2026 11:47:32 +0000 [thread overview]
Message-ID: <a7573a2f06de1f4efe7b964d3c2ecec557b7c21c.camel@siemens.com> (raw)
In-Reply-To: <25311cadb57c30bd18a0af3ad36311d5a8142e29.camel@siemens.com>
Buildlog without fix:
2026-04-16 10:33:04 - INFO - NOTE: recipe audis-image-minimal-1.0-
r0: task do_generate_initramfs: Started
2026-04-16 10:33:16 - ERROR - ERROR: audis-image-minimal-1.0-r0
do_generate_initramfs: Error executing a python function in
exec_func_python() autogenerated:
2026-04-16 10:33:16 - ERROR -
2026-04-16 10:33:16 - ERROR - The stack trace of python calls that
resulted in this exception/failure was:
2026-04-16 10:33:16 - ERROR - File: 'exec_func_python()
autogenerated', lineno: 2, function: <module>
2026-04-16 10:33:16 - ERROR - 0001:
2026-04-16 10:33:16 - ERROR - *** 0002:do_generate_initramfs(d)
2026-04-16 10:33:16 - ERROR - 0003:
2026-04-16 10:33:16 - ERROR - File:
'/mnt/data/builds/feature/z003jsce_fix_trixie/audis/audis-isar-
boards/cphera-rtp/audis-isar-boards/build/../isar/meta/classes-
recipe/rootfs.bbclass', lineno: 620, function: do_generate_initramfs
2026-04-16 10:33:16 - ERROR - 0616: progress_reporter =
bb.progress.ProgressHandler(d)
2026-04-16 10:33:16 - ERROR - 0617: d.rootfs_progress =
progress_reporter
2026-04-16 10:33:16 - ERROR - 0618:
2026-04-16 10:33:16 - ERROR - 0619: try:
2026-04-16 10:33:16 - ERROR - *** 0620:
bb.build.exec_func('rootfs_generate_initramfs', d)
2026-04-16 10:33:16 - ERROR - 0621: finally:
2026-04-16 10:33:16 - ERROR - 0622:
bb.build.exec_func('rootfs_do_umounts', d)
2026-04-16 10:33:16 - ERROR - 0623:}
2026-04-16 10:33:16 - ERROR - 0624:
2026-04-16 10:33:16 - ERROR - File:
'/mnt/data/builds/feature/z003jsce_fix_trixie/audis/audis-isar-
boards/cphera-rtp/audis-isar-boards/isar/bitbake/lib/bb/build.py',
lineno: 260, function: exec_func
2026-04-16 10:33:16 - ERROR - 0256: with
bb.utils.fileslocked(lockfiles):
2026-04-16 10:33:16 - ERROR - 0257: if ispython:
2026-04-16 10:33:16 - ERROR - 0258:
exec_func_python(func, d, runfile, cwd=adir)
2026-04-16 10:33:16 - ERROR - 0259: else:
2026-04-16 10:33:16 - ERROR - *** 0260:
exec_func_shell(func, d, runfile, cwd=adir)
2026-04-16 10:33:16 - ERROR - 0261:
2026-04-16 10:33:16 - ERROR - 0262: try:
2026-04-16 10:33:16 - ERROR - 0263: curcwd = os.getcwd()
2026-04-16 10:33:16 - ERROR - 0264: except:
2026-04-16 10:33:16 - ERROR - File:
'/mnt/data/builds/feature/z003jsce_fix_trixie/audis/audis-isar-
boards/cphera-rtp/audis-isar-boards/isar/bitbake/lib/bb/build.py',
lineno: 527, function: exec_func_shell
2026-04-16 10:33:16 - ERROR - 0523: with open(fifopath, 'r+b',
buffering=0) as fifo:
2026-04-16 10:33:16 - ERROR - 0524: try:
2026-04-16 10:33:16 - ERROR - 0525: bb.debug(2,
"Executing shell function %s" % func)
2026-04-16 10:33:16 - ERROR - 0526: with open(os.devnull,
'r+') as stdin, logfile:
2026-04-16 10:33:16 - ERROR - *** 0527:
bb.process.run(cmd, shell=False, stdin=stdin, log=logfile,
extrafiles=[(fifo,readfifo)])
2026-04-16 10:33:16 - ERROR - 0528: except
bb.process.ExecutionError as exe:
2026-04-16 10:33:16 - ERROR - 0529: # Find the backtrace
that the shell trap generated
2026-04-16 10:33:16 - ERROR - 0530:
backtrace_marker_regex = re.compile(r"WARNING: Backtrace \(BB generated
script\)")
2026-04-16 10:33:16 - ERROR - 0531: stdout_lines =
(exe.stdout or "").split("\n")
2026-04-16 10:33:16 - ERROR - File:
'/mnt/data/builds/feature/z003jsce_fix_trixie/audis/audis-isar-
boards/cphera-rtp/audis-isar-boards/isar/bitbake/lib/bb/process.py',
lineno: 177, function: run
2026-04-16 10:33:16 - ERROR - 0173: else:
2026-04-16 10:33:16 - ERROR - 0174: raise CmdError(cmd,
exc)
2026-04-16 10:33:16 - ERROR - 0175:
2026-04-16 10:33:16 - ERROR - 0176: if log:
2026-04-16 10:33:16 - ERROR - *** 0177: stdout, stderr =
_logged_communicate(pipe, log, input, extrafiles)
2026-04-16 10:33:16 - ERROR - 0178: else:
2026-04-16 10:33:16 - ERROR - 0179: stdout, stderr =
pipe.communicate(input)
2026-04-16 10:33:16 - ERROR - 0180: if not stdout is None:
2026-04-16 10:33:16 - ERROR - 0181: stdout =
stdout.decode("utf-8")
2026-04-16 10:33:16 - ERROR - File:
'/mnt/data/builds/feature/z003jsce_fix_trixie/audis/audis-isar-
boards/cphera-rtp/audis-isar-boards/isar/bitbake/lib/bb/process.py',
lineno: 145, function: _logged_communicate
2026-04-16 10:33:16 - ERROR - 0141:
2026-04-16 10:33:16 - ERROR - 0142: try:
2026-04-16 10:33:16 - ERROR - 0143: # Read all pipes while
the process is open
2026-04-16 10:33:16 - ERROR - 0144: while pipe.poll() is
None:
2026-04-16 10:33:16 - ERROR - *** 0145:
read_all_pipes(log, rin, outdata, errdata)
2026-04-16 10:33:16 - ERROR - 0146:
2026-04-16 10:33:16 - ERROR - 0147: # Process closed, drain
all pipes...
2026-04-16 10:33:16 - ERROR - 0148: read_all_pipes(log, rin,
outdata, errdata)
2026-04-16 10:33:16 - ERROR - 0149: finally:
2026-04-16 10:33:16 - ERROR - File:
'/mnt/data/builds/feature/z003jsce_fix_trixie/audis/audis-isar-
boards/cphera-rtp/audis-isar-boards/isar/bitbake/lib/bb/process.py',
lineno: 136, function: read_all_pipes
2026-04-16 10:33:16 - ERROR - 0132: if data is not None
and len(data) > 0:
2026-04-16 10:33:16 - ERROR - 0133: try:
2026-04-16 10:33:16 - ERROR - 0134: data =
data.decode("utf-8")
2026-04-16 10:33:16 - ERROR - 0135:
errdata.append(data)
2026-04-16 10:33:16 - ERROR - *** 0136:
log.write(data)
2026-04-16 10:33:16 - ERROR - 0137: log.flush()
2026-04-16 10:33:16 - ERROR - 0138: stderrbuf =
b""
2026-04-16 10:33:16 - ERROR - 0139: except
UnicodeDecodeError:
2026-04-16 10:33:16 - ERROR - 0140: stderrbuf =
data
2026-04-16 10:33:16 - ERROR - File:
'/mnt/data/builds/feature/z003jsce_fix_trixie/audis/audis-isar-
boards/cphera-rtp/audis-isar-
boards/build/../isar/meta/lib/rootfs_progress.py', lineno: 33,
function: write
2026-04-16 10:33:16 - ERROR - 0029:
2026-04-16 10:33:16 - ERROR - 0030: if self._stage ==
'prepare':
2026-04-16 10:33:16 - ERROR - 0031:
self.process_total(line)
2026-04-16 10:33:16 - ERROR - 0032: else:
2026-04-16 10:33:16 - ERROR - *** 0033:
self.process_line(line)
2026-04-16 10:33:16 - ERROR - 0034:
2026-04-16 10:33:16 - ERROR - 0035: def process_total(self,
line):
2026-04-16 10:33:16 - ERROR - 0036: m = re.search(r'^([0-9]+)
upgraded, ([0-9]+) newly installed', line)
2026-04-16 10:33:16 - ERROR - 0037: if m:
2026-04-16 10:33:16 - ERROR - File:
'/mnt/data/builds/feature/z003jsce_fix_trixie/audis/audis-isar-
boards/cphera-rtp/audis-isar-
boards/build/../isar/meta/lib/rootfs_progress.py', lineno: 94,
function: process_line
2026-04-16 10:33:16 - ERROR - 0090: elif
line.startswith('(excluding'):
2026-04-16 10:33:16 - ERROR - 0091: self._pkg +=
len(line.split(' ')) - 1
2026-04-16 10:33:16 - ERROR - 0092: else:
2026-04-16 10:33:16 - ERROR - 0093: return
2026-04-16 10:33:16 - ERROR - *** 0094:
self._progress.update(99 * self._pkg / self._num_pkgs)
2026-04-16 10:33:16 - ERROR - Exception: ZeroDivisionError: division
by zero
2026-04-16 10:33:16 - ERROR -
2026-04-16 10:33:16 - ERROR - ERROR: Logfile of failure stored in:
/mnt/data/builds/feature/z003jsce_fix_trixie/audis/audis-isar-
boards/cphera-rtp/audis-isar-boards/build/tmp/work/audis-trixie-latest-
arm64/audis-image-minimal-cphera-rtp/1.0-
r0/temp/log.do_generate_initramfs.11839
2026-04-16 10:33:16 - INFO - NOTE: recipe audis-image-minimal-1.0-
r0: task do_generate_initramfs: Failed
2026-04-16 10:33:16 - ERROR - ERROR: Task
(/mnt/data/builds/feature/z003jsce_fix_trixie/audis/audis-isar-
boards/cphera-rtp/audis-isar-boards/build/../audis-isar/recipes-
core/images/audis-image-minimal.bb:do_generate_initramfs) failed with
exit code '1'
2026-04-16 10:33:17 - INFO - NOTE: Tasks Summary: Attempted 129
tasks of which 95 didn't need to be rerun and 1 failed.
2026-04-16 10:33:17 - INFO -
2026-04-16 10:33:17 - INFO - Summary: 1 task failed:
2026-04-16 10:33:17 - INFO -
/mnt/data/builds/feature/z003jsce_fix_trixie/audis/audis-isar-
boards/cphera-rtp/audis-isar-boards/build/../audis-isar/recipes-
core/images/audis-image-minimal.bb:do_generate_initramfs
2026-04-16 10:33:17 - INFO - Summary: There were 2 WARNING
messages.
2026-04-16 10:33:17 - INFO - Summary: There was 1 ERROR message,
returning a non-zero exit code.
2026-04-16 10:33:17 - ERROR - Command
"/mnt/data/builds/feature/z003jsce_fix_trixie/audis/audis-isar-
boards/cphera-rtp/audis-isar-boards/build$
/mnt/data/builds/feature/z003jsce_fix_trixie/audis/audis-isar-
boards/cphera-rtp/audis-isar-boards/isar/bitbake/bin/bitbake -c build
audis-image-minimal" failed:
['ERROR: audis-image-minimal-1.0-r0 do_generate_initramfs: Error
executing a python function in exec_func_python() autogenerated:\n',
'\n', 'The stack trace of python calls that resulted in this
exception/failure was:\n', "File: 'exec_func_python() autogenerated',
lineno: 2, function: <module>\n", ' 0001:\n', ' ***
0002:do_generate_initramfs(d)\n', ' 0003:\n', "File:
'/mnt/data/builds/feature/z003jsce_fix_trixie/audis/audis-isar-
boards/cphera-rtp/audis-isar-boards/build/../isar/meta/classes-
recipe/rootfs.bbclass', lineno: 620, function:
do_generate_initramfs\n", ' 0616: progress_reporter =
bb.progress.ProgressHandler(d)\n', ' 0617: d.rootfs_progress =
progress_reporter\n', ' 0618:\n', ' 0619: try:\n', " ***
0620: bb.build.exec_func('rootfs_generate_initramfs', d)\n", '
0621: finally:\n', " 0622:
bb.build.exec_func('rootfs_do_umounts', d)\n", ' 0623:}\n', '
0624:\n', "File:
'/mnt/data/builds/feature/z003jsce_fix_trixie/audis/audis-isar-
boards/cphera-rtp/audis-isar-boards/isar/bitbake/lib/bb/build.py',
lineno: 260, function: exec_func\n", ' 0256: with
bb.utils.fileslocked(lockfiles):\n', ' 0257: if
ispython:\n', ' 0258: exec_func_python(func, d, runfile,
cwd=adir)\n', ' 0259: else:\n', ' *** 0260:
exec_func_shell(func, d, runfile, cwd=adir)\n', ' 0261:\n', '
0262: try:\n', ' 0263: curcwd = os.getcwd()\n', '
0264: except:\n', "File:
'/mnt/data/builds/feature/z003jsce_fix_trixie/audis/audis-isar-
boards/cphera-rtp/audis-isar-boards/isar/bitbake/lib/bb/build.py',
lineno: 527, function: exec_func_shell\n", " 0523: with
open(fifopath, 'r+b', buffering=0) as fifo:\n", ' 0524:
try:\n', ' 0525: bb.debug(2, "Executing shell function
%s" % func)\n', " 0526: with open(os.devnull, 'r+') as
stdin, logfile:\n", ' *** 0527: bb.process.run(cmd,
shell=False, stdin=stdin, log=logfile,
extrafiles=[(fifo,readfifo)])\n', ' 0528: except
bb.process.ExecutionError as exe:\n', ' 0529: # Find the
backtrace that the shell trap generated\n', ' 0530:
backtrace_marker_regex = re.compile(r"WARNING: Backtrace \\(BB
generated script\\)")\n', ' 0531: stdout_lines =
(exe.stdout or "").split("\\n")\n', "File:
'/mnt/data/builds/feature/z003jsce_fix_trixie/audis/audis-isar-
boards/cphera-rtp/audis-isar-boards/isar/bitbake/lib/bb/process.py',
lineno: 177, function: run\n", ' 0173: else:\n', ' 0174:
raise CmdError(cmd, exc)\n', ' 0175:\n', ' 0176: if log:\n',
' *** 0177: stdout, stderr = _logged_communicate(pipe, log,
input, extrafiles)\n', ' 0178: else:\n', ' 0179:
stdout, stderr = pipe.communicate(input)\n', ' 0180: if not
stdout is None:\n', ' 0181: stdout = stdout.decode("utf-
8")\n', "File:
'/mnt/data/builds/feature/z003jsce_fix_trixie/audis/audis-isar-
boards/cphera-rtp/audis-isar-boards/isar/bitbake/lib/bb/process.py',
lineno: 145, function: _logged_communicate\n", ' 0141:\n', '
0142: try:\n', ' 0143: # Read all pipes while the process
is open\n', ' 0144: while pipe.poll() is None:\n', ' ***
0145: read_all_pipes(log, rin, outdata, errdata)\n', '
0146:\n', ' 0147: # Process closed, drain all pipes...\n', '
0148: read_all_pipes(log, rin, outdata, errdata)\n', ' 0149:
finally:\n', "File:
'/mnt/data/builds/feature/z003jsce_fix_trixie/audis/audis-isar-
boards/cphera-rtp/audis-isar-boards/isar/bitbake/lib/bb/process.py',
lineno: 136, function: read_all_pipes\n", ' 0132: if
data is not None and len(data) > 0:\n', ' 0133:
try:\n', ' 0134: data = data.decode("utf-8")\n',
' 0135: errdata.append(data)\n', ' *** 0136:
log.write(data)\n', ' 0137: log.flush()\n', '
0138: stderrbuf = b""\n', ' 0139:
except UnicodeDecodeError:\n', ' 0140: stderrbuf
= data\n', "File:
'/mnt/data/builds/feature/z003jsce_fix_trixie/audis/audis-isar-
boards/cphera-rtp/audis-isar-
boards/build/../isar/meta/lib/rootfs_progress.py', lineno: 33,
function: write\n", ' 0029:\n', " 0030: if
self._stage == 'prepare':\n", ' 0031:
self.process_total(line)\n', ' 0032: else:\n', ' ***
0033: self.process_line(line)\n', ' 0034:\n', '
0035: def process_total(self, line):\n', " 0036: m =
re.search(r'^([0-9]+) upgraded, ([0-9]+) newly installed', line)\n", '
0037: if m:\n', "File:
'/mnt/data/builds/feature/z003jsce_fix_trixie/audis/audis-isar-
boards/cphera-rtp/audis-isar-
boards/build/../isar/meta/lib/rootfs_progress.py', lineno: 94,
function: process_line\n", " 0090: elif
line.startswith('(excluding'):\n", " 0091: self._pkg +=
len(line.split(' ')) - 1\n", ' 0092: else:\n', ' 0093:
return\n', ' *** 0094: self._progress.update(99 * self._pkg /
self._num_pkgs)\n', 'Exception: ZeroDivisionError: division by zero\n',
'\n', 'ERROR: Logfile of failure stored in:
/mnt/data/builds/feature/z003jsce_fix_trixie/audis/audis-isar-
boards/cphera-rtp/audis-isar-boards/build/tmp/work/audis-trixie-latest-
arm64/audis-image-minimal-cphera-rtp/1.0-
r0/temp/log.do_generate_initramfs.11839\n', "ERROR: Task
(/mnt/data/builds/feature/z003jsce_fix_trixie/audis/audis-isar-
boards/cphera-rtp/audis-isar-boards/build/../audis-isar/recipes-
core/images/audis-image-minimal.bb:do_generate_initramfs) failed with
exit code '1'\n"]
2026-04-16 10:33:17 - ERROR - Command
"/mnt/data/builds/feature/z003jsce_fix_trixie/audis/audis-isar-
boards/cphera-rtp/audis-isar-boards/isar/bitbake/bin/bitbake -c build
audis-image-minimal" failed with error 1
real 6m27.437s
user 0m1.742s
sys 0m1.589s
On Fri, 2026-04-17 at 13:41 +0200, Stefan Koch wrote:
> On Fri, 2026-04-17 at 12:15 +0200, Jan Kiszka wrote:
> > On 17.04.26 11:34, Stefan Koch wrote:
> > > Ensure that `num_pkgs` is at least 1 to avoid division by zero.
> > >
> > > Fixes: 88656cc9 ("generate_initramfs: fix progress reporting on
> > > dracut")
> > >
> >
> > I think that commit just armed the bug. It was rather introduced by
> > 938dab363006529f0b5296dfbc09ef306fc8c3d7.
>
> v2 fixes description
> >
> > > Signed-off-by: Stefan Koch <stefan-koch@siemens.com>
> > > ---
> > > meta/lib/rootfs_progress.py | 2 +-
> > > 1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/meta/lib/rootfs_progress.py
> > > b/meta/lib/rootfs_progress.py
> > > index 6feed9df..58d16574 100644
> > > --- a/meta/lib/rootfs_progress.py
> > > +++ b/meta/lib/rootfs_progress.py
> > > @@ -77,7 +77,7 @@ class
> > > InitrdProgressHandler(PkgsProgressHandler):
> > > m = re.search(r'^Total number of modules: ([0-9]+)',
> > > line)
> > > if m:
> > > # in MODULES=most mode, we install ~half of all
> > > modules
> > > - self._num_pkgs = int(m.group(1)) // 2
> > > + self._num_pkgs = max(1, int(m.group(1)) // 2)
> > > self._stage = 'post-prepare'
> > >
> > > def process_line(self, line):
> >
> > Jan
--
Stefan Koch
Siemens AG
www.siemens.com
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prev parent reply other threads:[~2026-04-17 11:47 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-17 9:34 [PATCH 0/1] " 'Stefan Koch' via isar-users
2026-04-17 9:34 ` [PATCH 1/1] " 'Stefan Koch' via isar-users
2026-04-17 10:15 ` 'Jan Kiszka' via isar-users
2026-04-17 11:41 ` 'Koch, Stefan' via isar-users
2026-04-17 11:47 ` 'Koch, Stefan' via isar-users [this message]
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