Consistent bad_alloc error

This message shows up after running zcashd for about ten minutes (admittedly on a very low end machine.) I am using the version of Zcash packaged in the Arch repositories.

EXCEPTION: St9bad_alloc       
Zcash in ProcessMessages()       

zcashd: main.cpp:2067: bool ConnectBlock(const CBlock&, CValidationState&, CBlockIndex*, CCoinsViewCache&, bool): Assertion `hashPrevBlock == view.GetBestBlock()' failed.

Can you please give more details about the machine? That error often occurs when the machine doesn’t have enough RAM.

RAM: 3836MiB

that’s the problem isn’t it

Try to add some swap space.

I believe it’s possible to run zcashd on any x86_64 machine.

Also, just to be sure, check your ulimit -a for memory limits.

free -h:

              total        used        free      shared  buff/cache   available
Mem:           3.7G        1.9G        1.0G        434M        825M        1.4G
Swap:           61M         59M        1.6M

(I hate it when the Markdown version in use doesn’t support tables.) I have no idea how I ended up with only 1.4G memory available.

As far as adding swap that will take a while. I can do it, but it’s gonna take ages.

dd if=/dev/zero of=swapfile bs=1024 count=4194304
mkswap swapfile
swapon swapfile