We recently upgraded a few of our servers to postgres 13 and the ones that have this version have begun hanging or restarting ..
Bunch of them are on netbsd 9 while very few of them are on 7.12 netbsd9 does not provide a coredump however I noticed this on the server that has netbsd 7.12 The servers that have crash are not a specific model the only common point is postgres 13 Any input by looking at the coredump below whats causing these crash/reboot.. crash -M netbsd.0.core Crash version 7.1.2, image version 7.1.2. System panicked: pmap_get_physpage: out of memory Backtrace from time of crash is available. crash> bt _KERNEL_OPT_NARCNET() at 0 _KERNEL_OPT_ACPI_SCANPCI() at _KERNEL_OPT_ACPI_SCANPCI+0xf vpanic() at vpanic+0x145 snprintf() at snprintf pmap_growkernel() at pmap_growkernel+0x32c uvm_map_prepare() at uvm_map_prepare+0x1d1 uvm_map() at uvm_map+0x74 uvm_km_alloc() at uvm_km_alloc+0x73 pool_grow() at pool_grow+0x2f pool_catchup() at pool_catchup+0x17 pool_get() at pool_get+0x217 allocbuf() at allocbuf+0xea getblk() at getblk+0xfc bio_doread.isra.4() at bio_doread.isra.4+0x19 bread() at bread+0x1a ffs_loadvnode() at ffs_loadvnode+0xc7 vcache_get() at vcache_get+0x2fa ufs_lookup() at ufs_lookup+0x8fc VOP_LOOKUP() at VOP_LOOKUP+0x34 lookup_once() at lookup_once+0x18b namei_tryemulroot() at namei_tryemulroot+0x58a namei() at namei+0x43 fd_nameiat.isra.0() at fd_nameiat.isra.0+0x54 do_sys_statat() at do_sys_statat+0x72 sys___lstat50() at sys___lstat50+0x25 syscall() at syscall+0x9a --- syscall (number 441) --- 7f7ff70a6f5a:
