剥离子怎么使用解决git --recursive克隆失败：分步克隆与镜像源优化策略

[user@localhost fep_switch]$ GIT_TRACE=1 GIT_CURL_VERBOSE=1 git submodule update ––init ––recursive
10:58:46.520579 git.c:725 trace: exec: git–submodule update ––init ––recursive
10:58:46.520616 run–command.c:655 trace: run_command: git–submodule update ––init ––recursive
10:58:46.531510 git.c:439 trace: built–in: git rev–parse ––git–dir
10:58:46.533318 git.c:439 trace: built–in: git rev–parse ––git–path objects
10:58:46.536000 git.c:439 trace: built–in: git rev–parse ––show–prefix
10:58:46.537084 git.c:439 trace: built–in: git rev–parse ––show–toplevel
10:58:46.540258 git.c:439 trace: built–in: git submodule––helper update ––recursive ––init ––
10:58:46.542987 run–command.c:1524 run_processes_parallel: preparing to run up to 1 tasks
10:58:46.543012 run–command.c:655 trace: run_command: git submodule––helper clone ––path ldk_marvell/cpss_work_4.3.10 ––name ldk_marvell/cpss_work_4.3.10 ––url ssh://shengmingde@gerrit.ep.tp–link.com:29418/SMB/SWITCH/SDK/cpss_work_4.3.10
10:58:46.544305 git.c:439 trace: built–in: git submodule––helper clone ––path ldk_marvell/cpss_work_4.3.10 ––name ldk_marvell/cpss_work_4.3.10 ––url ssh://shengmingde@gerrit.ep.tp–link.com:29418/SMB/SWITCH/SDK/cpss_work_4.3.10
10:58:46.544425 run–command.c:655 trace: run_command: unset GIT_PREFIX; GIT_DIR=.git git clone ––no–checkout ––separate–git–dir /project/fep_switch/.git/modules/ldk_marvell/cpss_work_4.3.10 –– ssh://shengmingde@gerrit.ep.tp–link.com:29418/SMB/SWITCH/SDK/cpss_work_4.3.10 /project/fep_switch/ldk_marvell/cpss_work_4.3.10
10:58:46.545324 git.c:439 trace: built–in: git clone ––no–checkout ––separate–git–dir /project/fep_switch/.git/modules/ldk_marvell/cpss_work_4.3.10 –– ssh://shengmingde@gerrit.ep.tp–link.com:29418/SMB/SWITCH/SDK/cpss_work_4.3.10 /project/fep_switch/ldk_marvell/cpss_work_4.3.10
Cloning into '/project/fep_switch/ldk_marvell/cpss_work_4.3.10'…
10:58:46.546841 run–command.c:655 trace: run_command: unset GIT_DIR; GIT_PROTOCOL=version=2 ssh –o SendEnv=GIT_PROTOCOL –p 29418 shengmingde@gerrit.ep.tp–link.com 'git–upload–pack '''/SMB/SWITCH/SDK/cpss_work_4.3.10''''
10:58:50.629573 run–command.c:655 trace: run_command: git index–pack ––stdin ––fix–thin '––keep=fetch–pack 48930 on localhost.localdomain' ––check–self–contained–and–connected
10:58:50.630737 git.c:439 trace: built–in: git index–pack ––stdin ––fix–thin '––keep=fetch–pack 48930 on localhost.localdomain' ––check–self–contained–and–connected 请分析问题