我正在构建一个 docker 映像，并且我正在尝试使用 gpg 签名对构建期间生成的包进行签名。这是我的环境变量：
yocto@edef5a9c44a0:~/build$ gpg --list-keys
/home/yocto/.gnupg/pubring.kbx
------------------------------
pub rsa3072 2020-12-14 [SC] [expires: 2025-12-13]
1A5EE69728AEC73E061665949FFC6A5AD2F1126C
uid [ultimate] xxxxxxxx (yyyyyyyy) <zzzzzzzz@zzzzzzzz>
sub rsa3072 2020-12-14 [E] [expires: 2025-12-13]
这是我的密钥 ID <9FFC6A5AD2F1126C> 这是我要添加到我的机器配置中的行
# Package manager configs
PACKAGE_CLASSES = "package_ipk"
EXTRA_IMAGE_FEATURES = "package-management"
IMAGE_INSTALL_append = " opkg "
# Package manager signature
INHERIT += "sign_ipk"
#OPKG_KEYRING_KEYS ?= "9FFC6A5AD2F1126C"
IPK_GPG_NAME = "9FFC6A5AD2F1126C"
IPK_GPG_PASSPHRASE_FILE = "/home/yocto/passphrase.txt"
INHERIT += "sign_package_feed"
PACKAGE_FEED_GPG_NAME = "9FFC6A5AD2F1126C"
PACKAGE_FEED_GPG_PASSPHRASE_FILE = "/home/yocto/passphrase.txt"
在“/home/yocto/passphrase.txt”中，我包含了我的秘密密码。我确实使用以下内容在 yocto env 中导出了我的密钥：
$ gpg --output rpm-feed.gpg --export <id>
我一直有这个错误：gpg：签名失败：无法分配内存
日志文件：
yocto@edef5a9c44a0:~/build$ cat /home/yocto/build/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/python3/3.5.3-r1.0/temp/log.do_package_write_ipk.51190
DEBUG: Executing python function sstate_task_prefunc
DEBUG: Python function sstate_task_prefunc finished
DEBUG: Executing python function extend_recipe_sysroot
NOTE: Direct dependencies are ['virtual:native:/home/yocto/poky/meta/recipes-devtools/pseudo/pseudo_1.8.2.bb:do_populate_sysroot', 'virtual:native:/home/yocto/poky/meta/recipes-devtools/opkg-utils/opkg-utils_0.3.5.bb:do_populate_sysroot']
NOTE: Installed into sysroot: []
NOTE: Skipping as already exists in sysroot: ['pseudo-native', 'opkg-utils-native', 'quilt-native']
DEBUG: Python function extend_recipe_sysroot finished
DEBUG: Executing python function do_package_write_ipk
DEBUG: Executing python function read_subpackage_metadata
DEBUG: Python function read_subpackage_metadata finished
DEBUG: Executing python function do_package_ipk
DEBUG: Signing ipk: /home/yocto/build/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/python3/3.5.3-r1.0/deploy-ipks/cortexa9hf-neon/python3-man_3.5.3-r1.0_cortexa9hf-neon.ipk
DEBUG: Signing ipk: /home/yocto/build/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/python3/3.5.3-r1.0/deploy-ipks/cortexa9hf-neon/python3-xmlrpc_3.5.3-r1.0_cortexa9hf-neon.ipk
DEBUG: Signing ipk: /home/yocto/build/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/python3/3.5.3-r1.0/deploy-ipks/cortexa9hf-neon/python3-xml_3.5.3-r1.0_cortexa9hf-neon.ipk
DEBUG: Signing ipk: /home/yocto/build/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/python3/3.5.3-r1.0/deploy-ipks/cortexa9hf-neon/python3-typing_3.5.3-r1.0_cortexa9hf-neon.ipk
DEBUG: Signing ipk: /home/yocto/build/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/python3/3.5.3-r1.0/deploy-ipks/cortexa9hf-neon/python3-unixadmin_3.5.3-r1.0_cortexa9hf-neon.ipk
DEBUG: Signing ipk: /home/yocto/build/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/python3/3.5.3-r1.0/deploy-ipks/cortexa9hf-neon/python3-modules_3.5.3-r1.0_cortexa9hf-neon.ipk
DEBUG: Signing ipk: /home/yocto/build/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/python3/3.5.3-r1.0/deploy-ipks/cortexa9hf-neon/python3-unittest_3.5.3-r1.0_cortexa9hf-neon.ipk
DEBUG: Signing ipk: /home/yocto/build/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/python3/3.5.3-r1.0/deploy-ipks/cortexa9hf-neon/python3-misc_3.5.3-r1.0_cortexa9hf-neon.ipk
DEBUG: Python function do_package_ipk finished
DEBUG: Python function do_package_write_ipk finished
ERROR: Function failed: GPG exited with code 2: gpg: signing failed: Cannot allocate memory
gpg: signing failed: Cannot allocate memory
这是有关内存的输出，我不明白它无法分配的内存！
yocto@edef5a9c44a0:~/build$ df -h
Bestandssysteem Grootte Gebruikt Besch Geb% Aangekoppeld op
overlay 297G 83G 200G 30% /
tmpfs 64M 0 64M 0% /dev
tmpfs 7,7G 0 7,7G 0% /sys/fs/cgroup
shm 64M 0 64M 0% /dev/shm
/dev/nvme0n1p5 297G 83G 200G 30% /home/yocto
tmpfs 7,7G 0 7,7G 0% /proc/asound
tmpfs 7,7G 0 7,7G 0% /proc/acpi
tmpfs 7,7G 0 7,7G 0% /proc/scsi
tmpfs 7,7G 0 7,7G 0% /sys/firmware