commit: f7fe02da2825122eb6347e569170e34515f112e3
Author: Matt Turner <mattst88 <AT> gentoo <DOT> org>
AuthorDate: Thu Oct 22 18:19:09 2020 +0000
Commit: Matt Turner <mattst88 <AT> gentoo <DOT> org>
CommitDate: Fri Oct 30 22:40:52 2020 +0000
URL: https://gitweb.gentoo.org/proj/catalyst.git/commit/?id=f7fe02da
catalyst: Remove kill_support_pids()
mount_namespaces(7) says
A mount ceases to be a member of a peer group when either the
mount is explicitly unmounted, or when the mount is implicitly
unmounted because a mount namespace is removed (because it has
no more member processes).
Now that the build sequence is executed in its own mount namespace, the
mounts are implicitly unmounted when the last process in the namespace
dies, meaning we don't need to try any funny business around cleaning up
processes in order to unmount.
Signed-off-by: Matt Turner <mattst88 <AT> gentoo.org>
catalyst/base/stagebase.py | 30 +++---------------
targets/support/kill-chroot-pids.sh | 62 -------------------------------------
2 files changed, 4 insertions(+), 88 deletions(-)
diff --git a/catalyst/base/stagebase.py b/catalyst/base/stagebase.py
index caec5935..bd5ba8d0 100644
--- a/catalyst/base/stagebase.py
+++ b/catalyst/base/stagebase.py
@@ -638,17 +638,6 @@ class StageBase(TargetBase, ClearBase, GenBase):
assert self.settings[verify] == "blake2"
self.settings.setdefault("gk_mainargs", []).append("--b2sum")
- def kill_chroot_pids(self):
- log.info('Checking for processes running in chroot and killing them.')
-
- # Force environment variables to be exported so script can see them
- self.setup_environment()
-
- killcmd = normpath(self.settings["sharedir"] +
- self.settings["shdir"] +
"/support/kill-chroot-pids.sh")
- if os.path.exists(killcmd):
- cmd([killcmd], env=self.env)
-
def mount_safety_check(self):
"""
Check and verify that none of our paths in mypath are mounted. We don't
@@ -920,18 +909,10 @@ class StageBase(TargetBase, ClearBase, GenBase):
try:
cxt = libmount.Context(target=str(target))
cxt.umount()
- except OSError:
- log.warning('First attempt to unmount failed: %s', target)
- log.warning('Killing any pids still running in the chroot')
-
- self.kill_chroot_pids()
-
- try:
- cxt.umount()
- except OSError as e:
- umount_failed = True
- log.warning("Couldn't umount: %s, %s", target,
- e.strerror)
+ except OSError as e:
+ log.warning("Couldn't umount: %s, %s", target,
+ e.strerror)
+ umount_failed = True
if umount_failed:
# if any bind mounts really failed, then we need to raise
@@ -1382,9 +1363,6 @@ class StageBase(TargetBase, ClearBase, GenBase):
def run(self):
self.chroot_lock.write_lock()
- # Kill any pids in the chroot
- self.kill_chroot_pids()
-
# Check for mounts right away and abort if we cannot unmount them
self.mount_safety_check()
diff --git a/targets/support/kill-chroot-pids.sh
b/targets/support/kill-chroot-pids.sh
deleted file mode 100755
index ea8ee402..00000000
--- a/targets/support/kill-chroot-pids.sh
+++ /dev/null
@@ -1,62 +0,0 @@
-#!/bin/bash
-# Script to kill processes found running in the chroot.
-
-if [ "${clst_chroot_path}" == "/" ]
-then
- echo "Aborting .... clst_chroot_path is set to /"
- echo "This is very dangerous"
- exit 1
-fi
-
-if [ "${clst_chroot_path}" == "" ]
-then
- echo "Aborting .... clst_chroot_path is NOT set"
- echo "This is very dangerous"
- exit 1
-fi
-
-j=0
-declare -a pids
-# Get files and dirs in /proc
-for i in `ls /proc`
-do
- # Test for directories
- if [ -d /proc/$i ]
- then
- # Search for exe containing string inside ${clst_chroot_path}
- ls -la --color=never /proc/$i 2>&1 |grep exe|grep ${clst_chroot_path} >
/dev/null
-
- # If found
- if [ $? == 0 ]
- then
- # Assign the pid into the pids array
- pids[$j]=$i
- j=$(($j+1))
- fi
- fi
-done
-
-if [ ${j} -gt 0 ]
-then
- echo
- echo "Killing process(es)"
- echo "pid: process name"
- for pid in ${pids[@]}
- do
- P_NAME=$(ls -la --color=never /proc/${pid} 2>&1 |grep exe|grep
${clst_chroot_path}|awk '{print $11}')
- echo ${pid}: ${P_NAME}
- done
- echo
- echo "Press Ctrl-C within 10 seconds to abort"
-
- sleep 10
-
- for pid in ${pids[@]}
- do
- kill -9 ${pid}
- done
-
- # Small sleep here to give the process(es) a chance to die before
running unbind again.
- sleep 5
-
-fi
