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Add interfaces-config.service as a dependency for tacacs-config.service#1

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Add interfaces-config.service as a dependency for tacacs-config.service#1
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@croos12 croos12 commented Aug 7, 2025

Resolves sonic-net#22795 by starting tacacs authentication only after management interface is set up so that the service does not throw an error due to a missing Ethernet Interface.

Why I did it

Tests are failing internally with
ERR dockerd: tac_connect_single: connection failed with 10.245.42.62:49: Transport endpoint is not connected

Work item tracking
  • Microsoft ADO (number only):

How I did it

Added interfaces-config.service as a dependency to tacacs-config.service

How to verify it

Reboot on affected sonic testbed to create new tacacs failure:

image

 
Install fix with new dependency on same sonic testbed:

image

No new exception occurred

Which release branch to backport (provide reason below if selected)

  • [X ] 202505

Tested branch (Please provide the tested image version)

Description for the changelog

Set network interfaces as a dependency for TACACS to prevent errors from being unable to connect to TACACS Server

Link to config_db schema for YANG module changes

NA

A picture of a cute animal (not mandatory but encouraged)**

IMG_1384 (1)

@croos12 croos12 self-assigned this Aug 7, 2025
@croos12 croos12 requested a review from tirupatihemanth August 7, 2025 23:58
croos12 pushed a commit that referenced this pull request Sep 29, 2025
<!--
     Please make sure you've read and understood our contributing guidelines:
     https://github.com/Azure/SONiC/blob/gh-pages/CONTRIBUTING.md

     ** Make sure all your commits include a signature generated with `git commit -s` **

     If this is a bug fix, make sure your description includes "fixes #xxxx", or
     "closes #xxxx" or "resolves #xxxx"

     Please provide the following information:
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#### Why I did it

Adding the below fix from FRR FRRouting/frr#17297

This is to fix the following crash which is a statistical issue

```
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/lib/frr/zebra -A 127.0.0.1 -s 90000000 -M dplane_fpm_nl -M snmp'.
Program terminated with signal SIGABRT, Aborted.
#0  0x00007fccd7351e2c in ?? () from /lib/x86_64-linux-gnu/libc.so.6
[Current thread is 1 (Thread 0x7fccd6faf7c0 (LWP 36))]
(gdb) bt
#0  0x00007fccd7351e2c in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fccd7302fb2 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fccd72ed472 in abort () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007fccd75bb3a9 in _zlog_assert_failed (xref=xref@entry=0x7fccd7652380 <_xref.16>, extra=extra@entry=0x0) at ../lib/zlog.c:678
#4  0x00007fccd759b2fe in route_node_delete (node=<optimized out>) at ../lib/table.c:352
#5  0x00007fccd759b445 in route_unlock_node (node=0x0) at ../lib/table.h:258
#6  route_next (node=<optimized out>) at ../lib/table.c:436
#7  route_next (node=node@entry=0x56029d89e560) at ../lib/table.c:410
#8  0x000056029b6b6b7a in if_lookup_by_name_per_ns (ns=ns@entry=0x56029d873d90, ifname=ifname@entry=0x7fccc0029340 "PortChannel1020")
    at ../zebra/interface.c:312
#9  0x000056029b6b8b36 in zebra_if_dplane_ifp_handling (ctx=0x7fccc0029310) at ../zebra/interface.c:1867
#10 zebra_if_dplane_result (ctx=0x7fccc0029310) at ../zebra/interface.c:2221
#11 0x000056029b7137a9 in rib_process_dplane_results (thread=<optimized out>) at ../zebra/zebra_rib.c:4810
#12 0x00007fccd75a0e0d in thread_call (thread=thread@entry=0x7ffe8e553cc0) at ../lib/thread.c:1990
#13 0x00007fccd7559368 in frr_run (master=0x56029d65a040) at ../lib/libfrr.c:1198
sonic-net#14 0x000056029b6ac317 in main (argc=9, argv=0x7ffe8e5540d8) at ../zebra/main.c:478
```

##### Work item tracking
- Microsoft ADO **(number only)**:

#### How I did it
Added patch.

#### How to verify it
Running BGP tests.

<!--
If PR needs to be backported, then the PR must be tested against the base branch and the earliest backport release branch and provide tested image version on these two branches. For example, if the PR is requested for master, 202211 and 202012, then the requester needs to provide test results on master and 202012.
-->

#### Which release branch to backport (provide reason below if selected)

<!--
- Note we only backport fixes to a release branch, *not* features!
- Please also provide a reason for the backporting below.
- e.g.
- [x] 202006
-->

- [ ] 201811
- [ ] 201911
- [ ] 202006
- [ ] 202012
- [ ] 202106
- [ ] 202111
- [ ] 202205
- [ ] 202211
- [ ] 202305

#### Tested branch (Please provide the tested image version)

<!--
- Please provide tested image version
- e.g.
- [x] 20201231.100
-->

- [ ] <!-- image version 1 -->
- [ ] <!-- image version 2 -->

#### Description for the changelog
<!--
Write a short (one line) summary that describes the changes in this
pull request for inclusion in the changelog:
-->

<!--
 Ensure to add label/tag for the feature raised. example - PR#2174 under sonic-utilities repo. where, Generic Config and Update feature has been labelled as GCU.
-->

#### Link to config_db schema for YANG module changes
<!--
Provide a link to config_db schema for the table for which YANG model
is defined
Link should point to correct section on https://github.com/Azure/sonic-buildimage/blob/master/src/sonic-yang-models/doc/Configuration.md
-->

#### A picture of a cute animal (not mandatory but encouraged)
croos12 pushed a commit that referenced this pull request Sep 29, 2025
…et#21405)

<!--
 Please make sure you've read and understood our contributing guidelines:
 https://github.com/Azure/SONiC/blob/gh-pages/CONTRIBUTING.md

 failure_prs.log skip_prs.log Make sure all your commits include a signature generated with `git commit -s` **

 If this is a bug fix, make sure your description includes "fixes #xxxx", or
 "closes #xxxx" or "resolves #xxxx"

 Please provide the following information:
-->

#### Why I did it

Adding the below fix from FRR FRRouting/frr#17297

This is to fix the following crash which is a statistical issue

```
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/lib/frr/zebra -A 127.0.0.1 -s 90000000 -M dplane_fpm_nl -M snmp'.
Program terminated with signal SIGABRT, Aborted.
#0 0x00007fccd7351e2c in ?? () from /lib/x86_64-linux-gnu/libc.so.6
[Current thread is 1 (Thread 0x7fccd6faf7c0 (LWP 36))]
(gdb) bt
#0 0x00007fccd7351e2c in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007fccd7302fb2 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#2 0x00007fccd72ed472 in abort () from /lib/x86_64-linux-gnu/libc.so.6
#3 0x00007fccd75bb3a9 in _zlog_assert_failed (xref=xref@entry=0x7fccd7652380 <_xref.16>, extra=extra@entry=0x0) at ../lib/zlog.c:678
#4 0x00007fccd759b2fe in route_node_delete (node=<optimized out>) at ../lib/table.c:352
#5 0x00007fccd759b445 in route_unlock_node (node=0x0) at ../lib/table.h:258
#6 route_next (node=<optimized out>) at ../lib/table.c:436
#7 route_next (node=node@entry=0x56029d89e560) at ../lib/table.c:410
#8 0x000056029b6b6b7a in if_lookup_by_name_per_ns (ns=ns@entry=0x56029d873d90, ifname=ifname@entry=0x7fccc0029340 "PortChannel1020")
 at ../zebra/interface.c:312
#9 0x000056029b6b8b36 in zebra_if_dplane_ifp_handling (ctx=0x7fccc0029310) at ../zebra/interface.c:1867
#10 zebra_if_dplane_result (ctx=0x7fccc0029310) at ../zebra/interface.c:2221
#11 0x000056029b7137a9 in rib_process_dplane_results (thread=<optimized out>) at ../zebra/zebra_rib.c:4810
#12 0x00007fccd75a0e0d in thread_call (thread=thread@entry=0x7ffe8e553cc0) at ../lib/thread.c:1990
#13 0x00007fccd7559368 in frr_run (master=0x56029d65a040) at ../lib/libfrr.c:1198
sonic-net#14 0x000056029b6ac317 in main (argc=9, argv=0x7ffe8e5540d8) at ../zebra/main.c:478
```

##### Work item tracking
- Microsoft ADO **(number only)**:

#### How I did it
Added patch.

#### How to verify it
Running BGP tests.

<!--
If PR needs to be backported, then the PR must be tested against the base branch and the earliest backport release branch and provide tested image version on these two branches. For example, if the PR is requested for master, 202211 and 202012, then the requester needs to provide test results on master and 202012.
-->

#### Which release branch to backport (provide reason below if selected)

<!--
- Note we only backport fixes to a release branch, *not* features!
- Please also provide a reason for the backporting below.
- e.g.
- [x] 202006
-->

- [ ] 201811
- [ ] 201911
- [ ] 202006
- [ ] 202012
- [ ] 202106
- [ ] 202111
- [ ] 202205
- [ ] 202211
- [ ] 202305

#### Tested branch (Please provide the tested image version)

<!--
- Please provide tested image version
- e.g.
- [x] 20201231.100
-->

- [ ] <!-- image version 1 -->
- [ ] <!-- image version 2 -->

#### Description for the changelog
<!--
Write a short (one line) summary that describes the changes in this
pull request for inclusion in the changelog:
-->

<!--
 Ensure to add label/tag for the feature raised. example - PR#2174 under sonic-utilities repo. where, Generic Config and Update feature has been labelled as GCU.
-->

#### Link to config_db schema for YANG module changes
<!--
Provide a link to config_db schema for the table for which YANG model
is defined
Link should point to correct section on https://github.com/Azure/sonic-buildimage/blob/master/src/sonic-yang-models/doc/Configuration.md
-->

#### A picture of a cute animal (not mandatory but encouraged)
croos12 pushed a commit that referenced this pull request Sep 29, 2025
* Update linux kernel to 6.1.123

Signed-off-by: Vivek Reddy <vkarri@nvidia.com>

* Integrate HW-MGMT 7.0040.3008 Changes

---------

Signed-off-by: Vivek Reddy <vkarri@nvidia.com>
@croos12 croos12 closed this Oct 6, 2025
croos12 pushed a commit that referenced this pull request Dec 5, 2025
#### Why I did it
If one python wheel is already installed inside slave container, it will not install again. Below is a sample log:
```
sed: -e expression #1, char 11: extra characters after command
WARNING: The directory '/var/user/.cache/pip' or its parent directory is not owned or is not writable by the current user. The cache has been disabled. Check the permissions and owner of that directory. If executing pip with sudo, you should use sudo's -H flag.
Processing ./target/python-wheels/bookworm/sonic_yang_models-1.0-py3-none-any.whl
sonic-yang-models is already installed with the same version as the provided wheel. Use --force-reinstall to force an installation of the wheel.
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager, possibly rendering your system unusable.It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv. Use the --root-user-action option if you know what you are doing and want to suppress this warning.

[notice] A new release of pip is available: 24.2 -> 25.3
[notice] To update, run: python3 -m pip install --upgrade pip
Build end time: Wed Dec 3 22:53:07 UTC 2025
Elapsed time: 0h 0m 1s
```
 However, we expect to reinstall the python wheel for target `$(PYTHON_WHEELS_PATH)/%-install`

##### Work item tracking
- Microsoft ADO **(number only)**:

#### How I did it
Update slave.mk to enasure force install the python wheel.

#### How to verify it
After this change, local build will successfully force install the python wheel. See new logs:
```
sed: -e expression #1, char 11: extra characters after command
WARNING: The directory '/var/qiluo/.cache/pip' or its parent directory is not owned or is not writable by the current user. The cache has been disabled. Check the permissions and owner of that directory. If executing pip with sudo, you should use sudo's -H flag.
Processing ./target/python-wheels/bookworm/sonic_yang_models-1.0-py3-none-any.whl
Installing collected packages: sonic-yang-models
  Attempting uninstall: sonic-yang-models
    Found existing installation: sonic-yang-models 1.0
    Uninstalling sonic-yang-models-1.0:
      Successfully uninstalled sonic-yang-models-1.0
Successfully installed sonic-yang-models-1.0
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager, possibly rendering your system unusable.It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv. Use the --root-user-action option if you know what you are doing and want to suppress this warning.

[notice] A new release of pip is available: 24.2 -> 25.3
[notice] To update, run: python3 -m pip install --upgrade pip
Build end time: Wed Dec 3 23:59:31 UTC 2025
```
croos12 pushed a commit that referenced this pull request Dec 16, 2025
…logs

The `imklog` plugin of rsyslog collects the kernel logs from `/dev/kmsg` and
enqueues it to the syslog. With `CONFIG_PRINTK_TIME` the kernel messages are by
default prefixed with the elapsed time since boot. The `imklog` plugin parsing
these messages have a few options such as to keep the timestamps as such or to
interpret and adjust the syslog's reported time accordingly.

The rsylog release `8.2312.0` has fixes in interpreting these timestamps,
leading to the change in behavior observed in sonic-net#24386.

  https://salsa.debian.org/debian/rsyslog/-/blob/debian/8.2504.0-1/ChangeLog?ref_type=tags#L619

To restore the earlier behavior or retaining the kernel reported elapsed time,
disable `KlogParseKernelTimestamp` as this leads to removal of timestamp from
kernel messages and enable `KlogKeepKernelTimestamp` explicitly. The later is
required as the default is now to discard the kernel timestamp.

With this change, the logs retain the kernel timestamp:

    root@sonic:~# cat /var/log/syslog | grep "sonic.*kernel:" | head -n 3
    2025 Nov  4 05:15:14.918946 sonic NOTICE kernel: [    0.000000] Linux version 6.12.41+deb13-sonic-amd64 (debian-kernel@lists.debian.org) (x86_64-linux-gnu-gcc-14 (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44) #1 SMP PREEMPT_DYNAMIC Debian 6.12.41-1 (2025-08-12)
    2025 Nov  4 05:15:14.919533 sonic INFO kernel: [    0.000000] Command line: BOOT_IMAGE=/image-trixie.0-dirty-20251102.122837/boot/vmlinuz-6.12.41+deb13-sonic-amd64 root=UUID=ac0b6826-f8a3-461f-a8ff-701df60d90b6 rw console=tty0 console=ttyS0,115200n8 quiet processor.max_cstate=1 intel_idle.max_cstate=0 net.ifnames=0 biosdevname=0 loop=image-trixie.0-dirty-20251102.122837/fs.squashfs loopfstype=squashfs apparmor=1 security=apparmor varlog_size=4096 usbcore.autosuspend=-1 intel_iommu=off modprobe.blacklist=gpio_ich,i2c-ismt,i2c_ismt,i2c-i801,i2c_i801 crashkernel=0M-2G:256M,2G-4G:320M,4G-8G:384M,8G-:448M acpi_no_watchdog
    2025 Nov  4 05:15:14.919536 sonic INFO kernel: [    0.000000] BIOS-provided physical RAM map:
    root@sonic:~# cat /var/log/syslog | grep "sonic.*kernel:" | tail -n 3
    2025 Nov  4 05:17:26.831607 sonic WARNING kernel: [  143.527486] PDDF_LED       set_status_led: Set [FANTRAY_LED;1] color[green]
    2025 Nov  4 05:17:26.912442 sonic WARNING kernel: [  143.607086] PDDF_LED       set_status_led: Set [FANTRAY_LED;2] color[green]
    2025 Nov  4 05:20:32.499634 sonic WARNING kernel: [  329.195319] PDDF_LED       set_status_led: Set [SYS_LED;0] color[amber]
    root@sonic:~#

Signed-off-by: Ramasamy Chandramouli <rachandr@celestica.com>
Co-authored-by: Ramasamy Chandramouli <rachandr@celestica.com>
croos12 pushed a commit that referenced this pull request Dec 18, 2025
…logs (sonic-net#56)

The `imklog` plugin of rsyslog collects the kernel logs from `/dev/kmsg` and
enqueues it to the syslog. With `CONFIG_PRINTK_TIME` the kernel messages are by
default prefixed with the elapsed time since boot. The `imklog` plugin parsing
these messages have a few options such as to keep the timestamps as such or to
interpret and adjust the syslog's reported time accordingly.

The rsylog release `8.2312.0` has fixes in interpreting these timestamps,
leading to the change in behavior observed in sonic-net#24386.

  https://salsa.debian.org/debian/rsyslog/-/blob/debian/8.2504.0-1/ChangeLog?ref_type=tags#L619

To restore the earlier behavior or retaining the kernel reported elapsed time,
disable `KlogParseKernelTimestamp` as this leads to removal of timestamp from
kernel messages and enable `KlogKeepKernelTimestamp` explicitly. The later is
required as the default is now to discard the kernel timestamp.

With this change, the logs retain the kernel timestamp:

    root@sonic:~# cat /var/log/syslog | grep "sonic.*kernel:" | head -n 3
    2025 Nov  4 05:15:14.918946 sonic NOTICE kernel: [    0.000000] Linux version 6.12.41+deb13-sonic-amd64 (debian-kernel@lists.debian.org) (x86_64-linux-gnu-gcc-14 (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44) #1 SMP PREEMPT_DYNAMIC Debian 6.12.41-1 (2025-08-12)
    2025 Nov  4 05:15:14.919533 sonic INFO kernel: [    0.000000] Command line: BOOT_IMAGE=/image-trixie.0-dirty-20251102.122837/boot/vmlinuz-6.12.41+deb13-sonic-amd64 root=UUID=ac0b6826-f8a3-461f-a8ff-701df60d90b6 rw console=tty0 console=ttyS0,115200n8 quiet processor.max_cstate=1 intel_idle.max_cstate=0 net.ifnames=0 biosdevname=0 loop=image-trixie.0-dirty-20251102.122837/fs.squashfs loopfstype=squashfs apparmor=1 security=apparmor varlog_size=4096 usbcore.autosuspend=-1 intel_iommu=off modprobe.blacklist=gpio_ich,i2c-ismt,i2c_ismt,i2c-i801,i2c_i801 crashkernel=0M-2G:256M,2G-4G:320M,4G-8G:384M,8G-:448M acpi_no_watchdog
    2025 Nov  4 05:15:14.919536 sonic INFO kernel: [    0.000000] BIOS-provided physical RAM map:
    root@sonic:~# cat /var/log/syslog | grep "sonic.*kernel:" | tail -n 3
    2025 Nov  4 05:17:26.831607 sonic WARNING kernel: [  143.527486] PDDF_LED       set_status_led: Set [FANTRAY_LED;1] color[green]
    2025 Nov  4 05:17:26.912442 sonic WARNING kernel: [  143.607086] PDDF_LED       set_status_led: Set [FANTRAY_LED;2] color[green]
    2025 Nov  4 05:20:32.499634 sonic WARNING kernel: [  329.195319] PDDF_LED       set_status_led: Set [SYS_LED;0] color[amber]
    root@sonic:~#

Signed-off-by: Ramasamy Chandramouli <rachandr@celestica.com>
Co-authored-by: Ramasamy Chandramouli <rachandr@celestica.com>
croos12 pushed a commit that referenced this pull request Jan 30, 2026
…logs

The `imklog` plugin of rsyslog collects the kernel logs from `/dev/kmsg` and
enqueues it to the syslog. With `CONFIG_PRINTK_TIME` the kernel messages are by
default prefixed with the elapsed time since boot. The `imklog` plugin parsing
these messages have a few options such as to keep the timestamps as such or to
interpret and adjust the syslog's reported time accordingly.

The rsylog release `8.2312.0` has fixes in interpreting these timestamps,
leading to the change in behavior observed in sonic-net#24386.

  https://salsa.debian.org/debian/rsyslog/-/blob/debian/8.2504.0-1/ChangeLog?ref_type=tags#L619

To restore the earlier behavior or retaining the kernel reported elapsed time,
disable `KlogParseKernelTimestamp` as this leads to removal of timestamp from
kernel messages and enable `KlogKeepKernelTimestamp` explicitly. The later is
required as the default is now to discard the kernel timestamp.

With this change, the logs retain the kernel timestamp:

    root@sonic:~# cat /var/log/syslog | grep "sonic.*kernel:" | head -n 3
    2025 Nov  4 05:15:14.918946 sonic NOTICE kernel: [    0.000000] Linux version 6.12.41+deb13-sonic-amd64 (debian-kernel@lists.debian.org) (x86_64-linux-gnu-gcc-14 (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44) #1 SMP PREEMPT_DYNAMIC Debian 6.12.41-1 (2025-08-12)
    2025 Nov  4 05:15:14.919533 sonic INFO kernel: [    0.000000] Command line: BOOT_IMAGE=/image-trixie.0-dirty-20251102.122837/boot/vmlinuz-6.12.41+deb13-sonic-amd64 root=UUID=ac0b6826-f8a3-461f-a8ff-701df60d90b6 rw console=tty0 console=ttyS0,115200n8 quiet processor.max_cstate=1 intel_idle.max_cstate=0 net.ifnames=0 biosdevname=0 loop=image-trixie.0-dirty-20251102.122837/fs.squashfs loopfstype=squashfs apparmor=1 security=apparmor varlog_size=4096 usbcore.autosuspend=-1 intel_iommu=off modprobe.blacklist=gpio_ich,i2c-ismt,i2c_ismt,i2c-i801,i2c_i801 crashkernel=0M-2G:256M,2G-4G:320M,4G-8G:384M,8G-:448M acpi_no_watchdog
    2025 Nov  4 05:15:14.919536 sonic INFO kernel: [    0.000000] BIOS-provided physical RAM map:
    root@sonic:~# cat /var/log/syslog | grep "sonic.*kernel:" | tail -n 3
    2025 Nov  4 05:17:26.831607 sonic WARNING kernel: [  143.527486] PDDF_LED       set_status_led: Set [FANTRAY_LED;1] color[green]
    2025 Nov  4 05:17:26.912442 sonic WARNING kernel: [  143.607086] PDDF_LED       set_status_led: Set [FANTRAY_LED;2] color[green]
    2025 Nov  4 05:20:32.499634 sonic WARNING kernel: [  329.195319] PDDF_LED       set_status_led: Set [SYS_LED;0] color[amber]
    root@sonic:~#

Signed-off-by: Ramasamy Chandramouli <rachandr@celestica.com>
Co-authored-by: Ramasamy Chandramouli <rachandr@celestica.com>
@croos12 croos12 deleted the croos12/tacacs-dependency branch March 12, 2026 21:39
croos12 pushed a commit that referenced this pull request Mar 19, 2026
…net#25643)

* [build] Add build timing report and dependency analysis tools

Add three scripts for build performance instrumentation:

- scripts/build-timing-report.sh: Parse per-package timing from build
  logs (HEADER/FOOTER timestamps), generate sorted duration table,
  phase breakdown, parallelism timeline, and CSV export.

- scripts/build-dep-graph.py: Parse rules/*.mk dependency graph,
  compute critical path, fan-out/fan-in bottleneck analysis, and
  generate DOT/JSON output for visualization.

- scripts/build-resource-monitor.sh: Sample CPU, memory, disk I/O,
  and Docker container count during builds for resource utilization
  analysis.

Add "make build-report" target to slave.mk that runs the timing
report and dependency analysis after a build completes.

Example output from a VS build on 24-core/30GB machine:
- 210 packages built in 53m wall time (173m CPU)
- Max concurrency: 5 (with SONIC_CONFIG_BUILD_JOBS=4)
- Critical path: 14 packages deep (libnl -> libswsscommon -> utilities)
- Top bottleneck: LIBSWSSCOMMON with 48 downstream dependents

Signed-off-by: Rustiqly <rustiqly@users.noreply.github.com>

* Address Copilot review: fix 17 bugs in build analysis scripts

- Use free -m with division instead of free -g to avoid rounding (#1)
- Add = and ?= to Makefile dependency regex patterns (#2, #7)
- CPU calculation now uses /proc/stat delta (two reads) (#3, sonic-net#14)
- Fix misleading 'critical path estimate' comment (#4)
- Fix parallelism timeline comment (60s not 10s) (#5)
- Include after-relationship packages in fan stats (#6)
- Guard disk I/O division by zero when INTERVAL<=1 (#8)
- Remove unused elapsed_line variable (#9)
- Remove redundant LIBSWSSCOMMON_DBG check (#10)
- Remove active_make_jobs from CSV header comment (#11)
- Wire up _RDEPENDS parsing to build reverse deps (#12)
- Remove unnecessary 'if v' filter on rdeps JSON (#13)
- Remove unused REPORT_FORMAT parameter (sonic-net#15)
- Add cycle detection to critical path algorithm (sonic-net#16)
- Add execute permission check for companion scripts (sonic-net#17)

Signed-off-by: Rustiqly <rustiqly@users.noreply.github.com>

---------

Signed-off-by: Rustiqly <rustiqly@users.noreply.github.com>
Co-authored-by: Rustiqly <rustiqly@users.noreply.github.com>
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Bug: Error on sonic-mgmt voq tests on reboot (failed to connect TACACS+ server)

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