Server with Oracle Linux 8 1CPU 3GB RAM, has the following services: ftp, apache, php74, php80, MariaDB.
Starting PHP 7.4 I get the error:
Sun Nov 21 16:07:52 2021 (108654): Fatal Error Unable to allocate shared memory segment of 134217728 bytes: unknown: Success (0)
Taking a look to the shared memory values:
# ipcs -lm
------ Shared Memory Limits --------
max number of segments = 4096
max seg size (kbytes) = 18014398509465599
max total shared memory (kbytes) = 18014398509481980
min seg size (bytes) = 1
And
# cat /proc/meminfo
MemTotal: 2742272 kB
MemFree: 1898576 kB
MemAvailable: 2111092 kB
Buffers: 4204 kB
Cached: 357696 kB
SwapCached: 0 kB
Active: 429096 kB
Inactive: 248940 kB
Active(anon): 316980 kB
Inactive(anon): 33128 kB
Active(file): 112116 kB
Inactive(file): 215812 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 3170300 kB
SwapFree: 3170300 kB
Dirty: 100 kB
Writeback: 0 kB
AnonPages: 316188 kB
Mapped: 154284 kB
Shmem: 33972 kB
KReclaimable: 37940 kB
Slab: 74884 kB
SReclaimable: 37940 kB
SUnreclaim: 36944 kB
KernelStack: 6832 kB
PageTables: 16420 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 4541436 kB
Committed_AS: 2748688 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 16740 kB
VmallocChunk: 0 kB
Percpu: 39680 kB
HardwareCorrupted: 0 kB
AnonHugePages: 96256 kB
ShmemHugePages: 0 kB
ShmemPmdMapped: 0 kB
FileHugePages: 0 kB
FilePmdMapped: 0 kB
CmaTotal: 0 kB
CmaFree: 0 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
Hugetlb: 0 kB
DirectMap4k: 114688 kB
DirectMap2M: 3022848 kB
DirectMap1G: 0 kB
I reduced the OPcache memory value from 128 to 64 but either way still crashes. Does anyone have a clue? thanks
