MadviseError

pub const MadviseError = error{
    /// advice is MADV.REMOVE, but the specified address range is not a shared writable mapping.
    AccessDenied,
    /// advice is MADV.HWPOISON, but the caller does not have the CAP_SYS_ADMIN capability.
    PermissionDenied,
    /// A kernel resource was temporarily unavailable.
    SystemResources,
    /// One of the following:
    /// * addr is not page-aligned or length is negative
    /// * advice is not valid
    /// * advice is MADV.DONTNEED or MADV.REMOVE and the specified address range
    ///   includes locked, Huge TLB pages, or VM_PFNMAP pages.
    /// * advice is MADV.MERGEABLE or MADV.UNMERGEABLE, but the kernel was not
    ///   configured with CONFIG_KSM.
    /// * advice is MADV.FREE or MADV.WIPEONFORK but the specified address range
    ///   includes file, Huge TLB, MAP.SHARED, or VM_PFNMAP ranges.
    InvalidSyscall,
    /// (for MADV.WILLNEED) Paging in this area would exceed the process's
    /// maximum resident set size.
    WouldExceedMaximumResidentSetSize,
    /// One of the following:
    /// * (for MADV.WILLNEED) Not enough memory: paging in failed.
    /// * Addresses in the specified range are not currently mapped, or
    ///   are outside the address space of the process.
    OutOfMemory,
    /// The madvise syscall is not available on this version and configuration
    /// of the Linux kernel.
    MadviseUnavailable,
    /// The operating system returned an undocumented error code.
    Unexpected,
}