Systemd SEGV when reloading – Ubuntu 24.04
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Systemd SEGV when reloading – Ubuntu 24.04
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Re: Systemd SEGV when reloading – Ubuntu 24.04
#2any ideas on how to resolve this?
Re: Systemd SEGV when reloading – Ubuntu 24.04
#3any ideas on how to resolve this?
Are you sure the memory in this system is ok?
As it dumped core, could be interesting to "gdb it" and get a stackframe.
Re: Systemd SEGV when reloading – Ubuntu 24.04
#4any ideas on how to resolve this?
Are you sure the memory in this system is ok? As it dumped core, could be interesting to "gdb it" and get a stackframe.
The systemd config is default and it should dump core and logs a message that it dumped core but I have not been able to find it. Usually core dumps are in
/var/lib/systemd/coredump but the directory is empty.
The server has ECC memory and there are no messages in the syslog about ECC failures. The SEGV occurred on two consecutive days when systemd was reloading so for the moment I find it unlikely that memory may be the root cause but looking at a core dump would certainly help. Where is it?
Re: Systemd SEGV when reloading – Ubuntu 24.04
#5Earlier quoted context omitted.
Are you sure the memory in this system is ok? As it dumped core, could be interesting to "gdb it" and get a stackframe.
The systemd config is default and it should dump core and logs a message that it dumped core but I have not been able to find it. Usually core dumps are in /var/lib/systemd/coredump but the directory is empty. The server has ECC memory and there are no messages in the syslog about ECC failures. The SEGV occurred on two consecutive days when systemd was reloading so for the moment I find it unlikely that memory may be…
Try this:
find / -name '*core*'Re: Systemd SEGV when reloading – Ubuntu 24.04
#6Earlier quoted context omitted.
The systemd config is default and it should dump core and logs a message that it dumped core but I have not been able to find it. Usually core dumps are in /var/lib/systemd/coredump but the directory is empty. The server has ECC memory and there are no messages in the syslog about ECC failures. The SEGV occurred on two consecutive days when systemd was reloading so for the moment I find it unlikely that memory may be…
Try this: find / -name '*core*'
It was in /var/lib/apport/coredump
The bt full of gdb seems to indicate that systemd chokes on a unit file. I bet it is clamav-freshclam. I am going to reboot now.
(gdb) bt full
#0 0x00007fec4596675b in kill () at ../sysdeps/unix/syscall-template.S:120
No locals.
#1 0x000055d907cfab1c in crash (sig=11) at ../src/core/main.c:257
sa = {__sigaction_handler = {sa_handler = 0x0, sa_sigaction = 0x0}, sa_mask = {__val = {0 }},
sa_flags = 0, sa_restorer = 0x0}
pid =
__func__ = "crash"
__PRETTY_FUNCTION__ = "crash"
#2
No locals.
#3 0x000055d907d74d73 in unit_active_state (u=) at ../src/core/unit.c:830
__PRETTY_FUNCTION__ = "unit_active_state"
#4 0x000055d907d84d86 in unit_may_gc (u=0x55d908ddfa00) at ../src/core/unit.c:392
state =
r =
__PRETTY_FUNCTION__ =
__func__ =
#5 0x000055d907d739fe in unit_may_gc (u=0x55d908ddfa00) at ../src/core/unit.c:389
state =
r =
__PRETTY_FUNCTION__ =
__func__ =
_found =
__assert_in_set =
_error =
_u =
_l =
#6 unit_add_to_gc_queue (u=0x55d908ddfa00) at ../src/core/unit.c:468
__PRETTY_FUNCTION__ = "unit_add_to_gc_queue"
#7 0x000055d907d85ab1 in unit_clear_dependencies (u=0x55d908da3000) at ../src/core/unit.c:555
other_deps = 0x0
other = 0x55d908ddfa00
deps = 0x55d908dc4878
__PRETTY_FUNCTION__ =
#8 unit_free (u=0x55d908da3000) at ../src/core/unit.c:698
slice = 0x55d908cb92a0
t = 0x0
__PRETTY_FUNCTION__ =
#9 0x000055d907d45d05 in unit_free (u=) at ../src/core/unit.c:654
slice =
t =
__PRETTY_FUNCTION__ =
__unique_prefix_i15 =
j =
j =
_head =
_item =
_head =
_item =
_head =
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_head =
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_head =
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_head =
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_head =
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_item =
#10 manager_clear_jobs_and_units (m=m@entry=0x55d908cb78f0) at ../src/core/manager.c:1421
u =
__PRETTY_FUNCTION__ =
#11 0x000055d907d4b01a in manager_clear_jobs_and_units (m=0x55d908cb78f0) at ../src/core/manager.c:1418
u =
__PRETTY_FUNCTION__ =
#12 manager_reload (m=0x55d908cb78f0) at ../src/core/manager.c:3826
reloading = 0x0
fds = 0x7fec45112ba8
f = 0x55d908f6c940
r =
__PRETTY_FUNCTION__ = "manager_reload"
__func__ = "manager_reload"
#13 0x000055d907cf9a7b in invoke_main_loop (ret_error_message=0x7ffd4b3057f0, ret_switch_root_init=,
ret_switch_root_dir=, ret_fds=0x7ffd4b3057e0, ret_shutdown_verb=,
ret_retval=, ret_reexecute=, saved_rlimit_memlock=0x7ffd4b305820,
saved_rlimit_nofile=0x7ffd4b305830, m=0x55d908cb78f0) at ../src/core/main.c:1934
saved_log_target =
saved_log_level =
r =
r =
__PRETTY_FUNCTION__ =
__func__ =
_error =
_level =
_e =
saved_log_target =
saved_log_level =
_level =
_e =
_level =
_e =
_level =
_e =
_ptr_ =
_ptr_ =
_level =
_e =
table =
_level =
_e =
#14 main (argc=1, argv=0x7ffd4b305ab8) at ../src/core/main.c:2910
initrd_timestamp = {realtime = 0, monotonic = 0}
userspace_timestamp = {realtime = 1726568591653978, monotonic = 37908672}
kernel_timestamp = {realtime = 1726568553745306, monotonic = 0}
security_start_timestamp = {realtime = 1726568591655330, monotonic = 37910024}
security_finish_timestamp = {realtime = 1726568591655914, monotonic = 37910609}
saved_rlimit_nofile = {rlim_cur = 1024, rlim_max = 4096}
saved_rlimit_memlock = {rlim_cur = 65536, rlim_max = 65536}
skip_setup =
loaded_policy = false
queue_default_job =
first_boot =
reexecute = false
switch_root_dir = 0x0
switch_root_init = 0x0
before_startup =
after_startup =
timespan = "\000\000\000\000\000\000\000\000\000\303t\255\211[\367\r\000\000\000\000\000\000\000\000\310\375\377\377\377\377\377\377\002", '\000' , "\002\000\000\000\000\000\000\000\006\000\000\000\000\000\000\200"
shutdown_verb = 0x0
error_message = 0x0
r =
retval = 1
m = 0x55d908cb78f0
fds = 0x0
finish =
systemd = "systemd"
__func__ = "main"
__PRETTY_FUNCTION__ = "main"
_head =
_item =
_head =
_item =
_head =
_item =
_head =
_item =
_head =
_item =
_head =
_item =
_head =
_item =
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#10 manager_clear_jobs_and_units (m=m@entry=0x55d908cb78f0) at ../src/core/manager.c:1421
u =
__PRETTY_FUNCTION__ =
#11 0x000055d907d4b01a in manager_clear_jobs_and_units (m=0x55d908cb78f0) at ../src/core/manager.c:1418
u =
__PRETTY_FUNCTION__ =
#12 manager_reload (m=0x55d908cb78f0) at ../src/core/manager.c:3826
reloading = 0x0
fds = 0x7fec45112ba8
f = 0x55d908f6c940
r =
__PRETTY_FUNCTION__ = "manager_reload"
__func__ = "manager_reload"
#13 0x000055d907cf9a7b in invoke_main_loop (ret_error_message=0x7ffd4b3057f0, ret_switch_root_init=,
ret_switch_root_dir=, ret_fds=0x7ffd4b3057e0, ret_shutdown_verb=,
ret_retval=, ret_reexecute=, saved_rlimit_memlock=0x7ffd4b305820,
saved_rlimit_nofile=0x7ffd4b305830, m=0x55d908cb78f0) at ../src/core/main.c:1934
saved_log_target =
saved_log_level =
r =
r =
__PRETTY_FUNCTION__ =
__func__ =
_error =
_level =
_e =
saved_log_target =
saved_log_level =
_level =
_e =
_level =
_e =
_level =
_e =
_ptr_ =
_ptr_ =
_level =
_e =
table =
_level =
_e =
#14 main (argc=1, argv=0x7ffd4b305ab8) at ../src/core/main.c:2910
initrd_timestamp = {realtime = 0, monotonic = 0}
userspace_timestamp = {realtime = 1726568591653978, monotonic = 37908672}
kernel_timestamp = {realtime = 1726568553745306, monotonic = 0}
security_start_timestamp = {realtime = 1726568591655330, monotonic = 37910024}
security_finish_timestamp = {realtime = 1726568591655914, monotonic = 37910609}
saved_rlimit_nofile = {rlim_cur = 1024, rlim_max = 4096}
saved_rlimit_memlock = {rlim_cur = 65536, rlim_max = 65536}
skip_setup =
loaded_policy = false
queue_default_job =
first_boot =
reexecute = false
switch_root_dir = 0x0
switch_root_init = 0x0
before_startup =
after_startup =
timespan = "\000\000\000\000\000\000\000\000\000\303t\255\211[\367\r\000\000\000\000\000\000\000\000\310\375\377\377\377\377\377\377\002", '\000' , "\002\000\000\000\000\000\000\000\006\000\000\000\000\000\000\200"
shutdown_verb = 0x0
error_message = 0x0
r =
retval = 1
m = 0x55d908cb78f0
fds = 0x0
finish =
systemd = "systemd"
__func__ = "main"
__PRETTY_FUNCTION__ = "main"