Dear R Helpers,
I would like to report on an error in the ff package here.
The ff package is an R package which enables us to store large data on disk
systematically and have fast access to the database.
I used the package in Linux as a guest OS of VirtualBox, and executed the
following commands.
library(ff)
x<-ff(1:5,length=5,update=TRUE,vmode="double",filename="header.ff",overwrite=TRUE)
Afterwards, I got the following error message.
*** caught segfault ***
address 0xffffffff, cause 'memory not mapped'
Traceback:
1: .Call("get_vector", .ffmode[vmode], attr(x, "physical"), index,
nreturn, PACKAGE = "ff")
2: `[.ff`(ret, 1)
3: ret[1]
4: as.vector(ret[1])
5: identical(as.vector(initdata[1]), as.vector(ret[1]))
6: ff(1:5, length = 5, update = TRUE, vmode = "double", filename =
"header.ff", overwrite = TRUE)
Possible actions:
1: abort (with core dump, if enabled)
2: normal R exit
3: exit R without saving workspace
4: exit R saving workspace
Selection:
Can anyone give an advice to solve the problem?
Best Regards,
Ryan
-----
Wonsang You
Leibniz Institute for Neurobiology
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