mhkool

الشهر الماضيdiscuss

OVH is more expensive

قبل سنتينdiscuss

I use a yubico key which holds all my Google Auth 2FA secrets. A yubico app generates the 2FA codes. I also have a hardcopy of all secrets. An additional advantage is that the yubico key is protected with a PIN code. Works great for me.

mhkool

قبل سنتينdiscuss

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 <repeats 16 times>}},
          sa_flags = 0, sa_restorer = 0x0}
        pid = <optimized out>
        __func__ = "crash"
        __PRETTY_FUNCTION__ = "crash"
  #2  <signal handler called>
  No locals.
  #3  0x000055d907d74d73 in unit_active_state (u=<optimized out>) 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 = <optimized out>
        r = <optimized out>
        __PRETTY_FUNCTION__ = <optimized out>
        __func__ = <optimized out>
  #5  0x000055d907d739fe in unit_may_gc (u=0x55d908ddfa00) at ../src/core/unit.c:389
        state = <optimized out>
        r = <optimized out>
        __PRETTY_FUNCTION__ = <optimized out>
        __func__ = <optimized out>
        _found = <optimized out>
        __assert_in_set = <optimized out>
        _error = <optimized out>
        _u = <optimized out>
        _l = <optimized out>
  #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__ = <optimized out>
  #8  unit_free (u=0x55d908da3000) at ../src/core/unit.c:698
        slice = 0x55d908cb92a0
        t = 0x0
        __PRETTY_FUNCTION__ = <optimized out>
  #9  0x000055d907d45d05 in unit_free (u=<optimized out>) at ../src/core/unit.c:654
        slice = <optimized out>
        t = <optimized out>
        __PRETTY_FUNCTION__ = <optimized out>
        __unique_prefix_i15 = <optimized out>
        j = <optimized out>
        j = <optimized out>
        _head = <optimized out>
        _item = <optimized out>
        _head = <optimized out>
        _item = <optimized out>
        _head = <optimized out>
        _item = <optimized out>
        _head = <optimized out>
        _item = <optimized out>
        _head = <optimized out>
        _item = <optimized out>
        _head = <optimized out>
        _item = <optimized out>
        _head = <optimized out>
        _item = <optimized out>
        _head = <optimized out>
        _item = <optimized out>
        _head = <optimized out>
        _item = <optimized out>
        _head = <optimized out>
        _item = <optimized out>
        _head = <optimized out>
        _item = <optimized out>
        _head = <optimized out>
        _item = <optimized out>
  #10 manager_clear_jobs_and_units (m=m@entry=0x55d908cb78f0) at ../src/core/manager.c:1421
        u = <optimized out>
        __PRETTY_FUNCTION__ = <optimized out>
  #11 0x000055d907d4b01a in manager_clear_jobs_and_units (m=0x55d908cb78f0) at ../src/core/manager.c:1418
        u = <optimized out>
        __PRETTY_FUNCTION__ = <optimized out>
  #12 manager_reload (m=0x55d908cb78f0) at ../src/core/manager.c:3826
        reloading = 0x0
        fds = 0x7fec45112ba8
        f = 0x55d908f6c940
        r = <optimized out>
        __PRETTY_FUNCTION__ = "manager_reload"
        __func__ = "manager_reload"
  #13 0x000055d907cf9a7b in invoke_main_loop (ret_error_message=0x7ffd4b3057f0, ret_switch_root_init=<synthetic pointer>,
    ret_switch_root_dir=<synthetic pointer>, ret_fds=0x7ffd4b3057e0, ret_shutdown_verb=<synthetic pointer>,
    ret_retval=<synthetic pointer>, ret_reexecute=<synthetic pointer>, saved_rlimit_memlock=0x7ffd4b305820,
    saved_rlimit_nofile=0x7ffd4b305830, m=0x55d908cb78f0) at ../src/core/main.c:1934
        saved_log_target = <optimized out>
        saved_log_level = <optimized out>
        r = <optimized out>
        r = <optimized out>
        __PRETTY_FUNCTION__ = <optimized out>
        __func__ = <optimized out>
        _error = <optimized out>
        _level = <optimized out>
        _e = <optimized out>
        saved_log_target = <optimized out>
        saved_log_level = <optimized out>
        _level = <optimized out>
        _e = <optimized out>
        _level = <optimized out>
        _e = <optimized out>
        _level = <optimized out>
        _e = <optimized out>
        _ptr_ = <optimized out>
        _ptr_ = <optimized out>
        _level = <optimized out>
        _e = <optimized out>
        table = <optimized out>
        _level = <optimized out>
        _e = <optimized out>
  #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 = <optimized out>
        loaded_policy = false
        queue_default_job = <optimized out>
        first_boot = <optimized out>
        reexecute = false
        switch_root_dir = 0x0
        switch_root_init = 0x0
        before_startup = <optimized out>
        after_startup = <optimized out>
        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' <repeats 15 times>, "\002\000\000\000\000\000\000\000\006\000\000\000\000\000\000\200"
        shutdown_verb = 0x0
        error_message = 0x0
        r = <optimized out>
        retval = 1
        m = 0x55d908cb78f0
        fds = 0x0
        finish = <optimized out>
        systemd = "systemd"
        __func__ = "main"
        __PRETTY_FUNCTION__ = "main"
        _head = <optimized out>
        _item = <optimized out>
        _head = <optimized out>
        _item = <optimized out>
        _head = <optimized out>
        _item = <optimized out>
        _head = <optimized out>
        _item = <optimized out>
        _head = <optimized out>

        _item = <optimized out>
        _head = <optimized out>
        _item = <optimized out>
        _head = <optimized out>
        _item = <optimized out>
        _head = <optimized out>
        _item = <optimized out>
        _head = <optimized out>
        _item = <optimized out>
        _head = <optimized out>
        _item = <optimized out>
  #10 manager_clear_jobs_and_units (m=m@entry=0x55d908cb78f0) at ../src/core/manager.c:1421
        u = <optimized out>
        __PRETTY_FUNCTION__ = <optimized out>
  #11 0x000055d907d4b01a in manager_clear_jobs_and_units (m=0x55d908cb78f0) at ../src/core/manager.c:1418
        u = <optimized out>
        __PRETTY_FUNCTION__ = <optimized out>
  #12 manager_reload (m=0x55d908cb78f0) at ../src/core/manager.c:3826
        reloading = 0x0
        fds = 0x7fec45112ba8
        f = 0x55d908f6c940
        r = <optimized out>
        __PRETTY_FUNCTION__ = "manager_reload"
        __func__ = "manager_reload"
  #13 0x000055d907cf9a7b in invoke_main_loop (ret_error_message=0x7ffd4b3057f0, ret_switch_root_init=<synthetic pointer>,
    ret_switch_root_dir=<synthetic pointer>, ret_fds=0x7ffd4b3057e0, ret_shutdown_verb=<synthetic pointer>,
    ret_retval=<synthetic pointer>, ret_reexecute=<synthetic pointer>, saved_rlimit_memlock=0x7ffd4b305820,
    saved_rlimit_nofile=0x7ffd4b305830, m=0x55d908cb78f0) at ../src/core/main.c:1934
        saved_log_target = <optimized out>
        saved_log_level = <optimized out>
        r = <optimized out>
        r = <optimized out>
        __PRETTY_FUNCTION__ = <optimized out>
        __func__ = <optimized out>
        _error = <optimized out>
        _level = <optimized out>
        _e = <optimized out>
        saved_log_target = <optimized out>
        saved_log_level = <optimized out>
        _level = <optimized out>
        _e = <optimized out>
        _level = <optimized out>
        _e = <optimized out>
        _level = <optimized out>
        _e = <optimized out>
        _ptr_ = <optimized out>
        _ptr_ = <optimized out>
        _level = <optimized out>
        _e = <optimized out>
        table = <optimized out>
        _level = <optimized out>
        _e = <optimized out>
  #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 = <optimized out>
        loaded_policy = false
        queue_default_job = <optimized out>
        first_boot = <optimized out>
        reexecute = false
        switch_root_dir = 0x0
        switch_root_init = 0x0
        before_startup = <optimized out>
        after_startup = <optimized out>
        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' <repeats 15 times>, "\002\000\000\000\000\000\000\000\006\000\000\000\000\000\000\200"
        shutdown_verb = 0x0
        error_message = 0x0
        r = <optimized out>
        retval = 1
        m = 0x55d908cb78f0
        fds = 0x0
        finish = <optimized out>
        systemd = "systemd"
        __func__ = "main"
        __PRETTY_FUNCTION__ = "main"

mhkool

قبل سنتينdiscuss

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?

mhkool

قبل سنتينdiscuss

any ideas on how to resolve this?

mhkool

قبل 3 سنواتdiscuss

To test if the system has a functional MMU

mhkool

قبل 4 سنواتdiscuss

I like the yubico key that even has a pin code so if lost or stolen protects your TOTP codes

mhkool

قبل 4 سنواتdiscuss

Since the performance for array sizes <L1-size and <L2-size is similar , I would like to see an attempt to improve B. B = L2-size / 2 / sizeof(int) - 16 might produce better results.

Note also that _mm_broadcast_ss() is faster on newer processors.

mhkool

قبل 5 سنواتdiscuss

Why do people want to escape fiat currencies? Because the central banks inflate them. If only we could have an inflation-proof currency...

mhkool

قبل 5 سنواتdiscuss

Even billionaires and hedge funds participate in this bubble. We have seen in the past that people start to invest in risky assets before a depression. I think a depression is coming.

mhkool

قبل 5 سنواتdiscuss

Did you check your cortisol levels? Drowsiness is a symptom of adrenal fatigue.

mhkool

قبل 5 سنواتdiscuss

Not FUD but facts:

Bitcoin is 1st generation blockchain technology and compared to current 3rd generation (e.g. XRP) it is slow and expensive.

IMF, BIS, ECB and FED have stated in political obfuscated speak that they want a fast and cheap bridge currency for cross-border payments. There is only one serious candidate for this: XRP.

mhkool

قبل 5 سنواتdiscuss

correct, but that does not make coverage calculations incorrect since it is based on the snooped FQDNs.

mhkool

قبل 5 سنواتdiscuss

Thanks for the pointers.

The coverage is calculated by DNS servers and web proxies and can only be incorrect if circumvented. The web proxies are almost all in corporate environments where they cannot be circumvented. Only a tiny fraction of HTTPS uses a TLS1.3 extension to encrypt the FQDN of the web server - the rest of the HTTPS traffic can be monitored.

mhkool

قبل 5 سنواتdiscuss

“He didn’t know what to think” is translated to Portuguese “Ele não sabia o que fazer” which is incorrect. Fazer is “to do” not “to think”

mhkool

قبل 6 سنواتdiscuss

Why don't you talk about the 10 points that the scientists state to argue that the test is flawed? And what do you have to say about the other 21 scientists? What do you have to say about the former Pfizer chief scientist which is co-author?

mhkool

قبل 6 سنواتdiscuss

The biggest scandal so far: a retraction paper for the SARS-CoV-19 PCR test was submitted in November 2020 but ignored so far. The retraction paper is here: https://cormandrostenreview.com/report/

mhkool

قبل 6 سنواتdiscuss

I agree. But I rather pay a small fee for CentOS without support than a hefty fee for RHEL with support.

mhkool

قبل 6 سنواتdiscuss

I agree. We will see if a new community wants to copy CentOS and maintain it.

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