Starting it without going to the background confirmed my assumption:
../../chronyd -d -x -f /root/chrony-4.0/test/system/tmp/chronyd.conf -u root -F
-1
2021-02-12T08:28:54Z chronyd version 4.0 starting (+CMDMON +NTP +REFCLOCK +RTC
+PRIVDROP +SCFILTER +SIGND +ASYNCDNS +NTS +SECHASH +IPV6 -DEBUG)
2021-02-12T08:28:54Z Disabled control of system clock
2021-02-12T08:28:54Z Frequency 0.000 +/- 10000.000 ppm read from
/root/chrony-4.0/test/system/tmp/driftfile
2021-02-12T08:28:54Z Loaded seccomp filter
Bad system call (core dumped)
with ltrace -rtS I can see this:
0.004178 qsort(0xbfba10, 0, 144, 0x84808d)
= <void> <0.001344>
0.001618 free(0xbf7750)
= <void> <0.000946>
0.001359 free(0xbea140)
= <void> <0.001227>
0.001634 __snprintf_chk(0xffc5c4e4, 4096, 1, 4096)
= 38 <0.001835>
0.002481 glob(0xffc5c4e4, 0, 0, 0xffc5c46c <unfinished ...>
0.001822 SYS_322(-100, 0xffc5bf98, 0xa4800, 0)
= 11 <0.001148>
0.001684 SYS_397(11, 0xf75def08, 6144, 2047 <no return ...>
0.759239 +++ killed by SIGSYS +++
That is statx?
https://github.com/torvalds/linux/blob/v5.10/arch/arm/tools/syscall.tbl#L414
You can test that with two builds of chrony 4.0 that we have in hirsute
(-release/proposed).
$ltrace -rTS -- /usr/sbin/chronyd.old -d -x -f
/root/chrony-4.0/test/system/tmp/chronyd.conf -u root -F 1
...
0.000606 SYS_322(-100, 0xffcb3428, 0xa4800, 0)
= 11 <0.001303>
0.001932 SYS_397(11, 0xf7adcf08, 6144, 2047 <no return ...>
0.738267 +++ killed by SIGSYS +++
$ltrace -rTS -- /usr/sbin/chronyd.new -d -x -f
/root/chrony-4.0/test/system/tmp/chronyd.conf -u root -F 1
...
0.000722 SYS_322(-100, 0xff99ed38, 0xa4800, 0)
= 11 <0.000405>
0.000555 SYS_397(11, 0xf79a2f08, 6144, 2047 <no return ...>
0.763443 +++ killed by SIGSYS +++
If it is "SIGSYS" or "SIGSYS (Bad system call)" depends on our config, but
isn't important.
We can see that the OLD and the NEW build both fail atm - so it is not anything
that chrony introduced.
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https://bugs.launchpad.net/bugs/1915006
Title:
Consider merging 4.0-5 for Hirsute
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