I've just had an unsuccessful attempt to upgrade to systemd-230-r1. It
segfaults and slows the system down. The symptoms are better compared to
-229, but still significant.

https://forums.grsecurity.net/viewtopic.php?f=3&t=4485

Some relevant log entries:
grsec: denied resource overstep by requesting 8392704 for RLIMIT_STACK
against limit 8388608 for /usr/lib64/systemd/systemd[systemd:2735]
uid/euid:0/0 gid/egid:0/0, parent /usr/lib64/systemd/systemd[systemd:1]
uid/euid:0/0 gid/egid:0/0
systemd[2735]: segfault at 39f8d01cf00 ip 00000368d4caa2e4 sp
0000039f8d01cf00 error 6 in libc-2.23.so[368d4c62000+19a000]
grsec: Segmentation fault occurred at 0000039f8d01cf00 in
/usr/lib64/systemd/systemd[systemd:2735] uid/euid:0/0 gid/egid:0/0, parent
/usr/lib64/systemd/systemd[systemd:1] uid/euid:0/0 gid/egid:0/0
grsec: bruteforce prevention initiated for the next 30 minutes or until
service restarted, stalling each fork 30 seconds.  Please investigate the
crash report for /usr/lib64/systemd/systemd[systemd:2735] uid/euid:0/0
gid/egid:0/0, parent /usr/lib64/systemd/systemd[systemd:1] uid/euid:0/0
gid/egid:0/0

systemd-coredump[2747]: Process 2735 (systemd) of user 0 dumped core.

                                                   Stack trace of thread
2735:
                                                   #0  0x00000368d4caa2e4
_IO_vfprintf
(libc.so.6)
                                                   #1  0x00000368d4d5e852
__vsnprintf_chk
(libc.so.6)
                                                   #2  0x00000368d4d5e7a4
__snprintf_chk
(libc.so.6)
                                                   #3  0x00000000df8db344
n/a (systemd)
                                                   #4  0x00000000df8db9aa
n/a (systemd)
                                                   #5  0x00000000df8da72f
n/a (systemd)
                                                   #6  0x00000000df8db314
n/a (systemd)
                                                   #7  0x00000000df8db9aa
n/a (systemd)
                                                   #8  0x00000000df8da72f
n/a (systemd)
                                                   #9  0x00000000df8db314
n/a (systemd)
                                                   #10 0x00000000df8db9aa
n/a (systemd)
                                                   #11 0x00000000df8da72f
n/a (systemd)
                                                   #12 0x00000000df8db314
n/a (systemd)
                                                   #13 0x00000000df8db9aa
n/a (systemd)
                                                   #14 0x00000000df8da72f
n/a (systemd)
                                                   #15 0x00000000df8db314
n/a (systemd)
                                                   #16 0x00000000df8db9aa
n/a (systemd)
                                                   #17 0x00000000df8da72f
n/a (systemd)
                                                   #18 0x00000000df8db314
n/a (systemd)
                                                   #19 0x00000000df8db9aa
n/a (systemd)
                                                   #20 0x00000000df8da72f
n/a (systemd)
                                                   #21 0x00000000df8db314
n/a (systemd)
                                                   #22 0x00000000df8db9aa
n/a (systemd)
                                                   #23 0x00000000df8da72f
n/a (systemd)
                                                   #24 0x00000000df8db314
n/a (systemd)
                                                   #25 0x00000000df8db9aa
n/a (systemd)
                                                   #26 0x00000000df8da72f
n/a (systemd)
                                                   #27 0x00000000df8db314
n/a (systemd)
                                                   #28 0x00000000df8db9aa
n/a (systemd)
                                                   #29 0x00000000df8da72f
n/a (systemd)
                                                   #30 0x00000000df8db314
n/a (systemd)
                                                   #31 0x00000000df8db9aa
n/a (systemd)
                                                   #32 0x00000000df8da72f
n/a (systemd)
                                                   #33 0x00000000df8db314
n/a (systemd)
                                                   #34 0x00000000df8db9aa
n/a (systemd)
                                                   #35 0x00000000df8da72f
n/a (systemd)
                                                   #36 0x00000000df8db314
n/a (systemd)
                                                   #37 0x00000000df8db9aa
n/a (systemd)
                                                   #38 0x00000000df8da72f
n/a (systemd)
                                                   #39 0x00000000df8db314
n/a (systemd)
                                                   #40 0x00000000df8db9aa
n/a (systemd)
                                                   #41 0x00000000df8da72f
n/a (systemd)
                                                   #42 0x00000000df8db314
n/a (systemd)
                                                   #43 0x00000000df8db9aa
n/a (systemd)
                                                   #44 0x00000000df8da72f
n/a (systemd)
                                                   #45 0x00000000df8db314
n/a (systemd)
                                                   #46 0x00000000df8db9aa
n/a (systemd)
                                                   #47 0x00000000df8da72f
n/a (systemd)
                                                   #48 0x00000000df8db314
n/a (systemd)
                                                   #49 0x00000000df8db9aa
n/a (systemd)
                                                   #50 0x00000000df8da72f
n/a (systemd)
                                                   #51 0x00000000df8db314
n/a (systemd)
                                                   #52 0x00000000df8db9aa
n/a (systemd)
                                                   #53 0x00000000df8da72f
n/a (systemd)
                                                   #54 0x00000000df8db314
n/a (systemd)
                                                   #55 0x00000000df8db9aa
n/a (systemd)
                                                   #56 0x00000000df8da72f
n/a (systemd)
                                                   #57 0x00000000df8db314
n/a (systemd)
                                                   #58 0x00000000df8db9aa
n/a (systemd)
                                                   #59 0x00000000df8da72f
n/a (systemd)
                                                   #60 0x00000000df8db314
n/a (systemd)
                                                   #61 0x00000000df8db9aa
n/a (systemd)
                                                   #62 0x00000000df8da72f
n/a (systemd)
                                                   #63 0x00000000df8db314
n/a (systemd)
systemd-logind[897]: Failed to abandon session scope: Connection timed out


Any of you have problems with the latest versions of systemd as well? Any
ideas?

Thanks:
Dw.
-- 
dr Tóth Attila, Radiológus, 06-20-825-8057
Attila Toth MD, Radiologist, +36-20-825-8057

2016.Március 10.(Cs) 01:53 időpontban "Tóth Attila" ezt írta:
> After upgrading to systemd-229 it segfaults early during boot triggering
> bruteforce prevention, which renders the system annoyingly slow.
>
> grsec: Segmentation fault occurred at 000003e45975efd0 in
> /usr/lib64/systemd/systemd[systemd:1135]
> grsec: bruteforce prevention initiated for the next 30 minutes or until
> service restarted, stalling each fork 30 seconds.  Please investigate the
> crash report for /usr/lib64/systemd/systemd[systemd:1135]
>
> Avoid it or be aware that might happen: Dw.
> --
> dr Tóth Attila, Radiológus, 06-20-825-8057
> Attila Toth MD, Radiologist, +36-20-825-8057
>
>
>
>



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