* [PATCH] rm_work.bbclass: use HOSTTOOLS 'rm' binary exclusively
@ 2022-12-24 1:49 Luis Martins
2022-12-30 23:27 ` Luís Martins
0 siblings, 1 reply; 2+ messages in thread
From: Luis Martins @ 2022-12-24 1:49 UTC (permalink / raw)
To: openembedded-core; +Cc: Luis Martins
The do_rm_work() task is using the first available 'rm' binary
available in PATH to remove files and folders.
However, depending on the PATH setup and RECIPE_SYSROOT_NATIVE
contents, the function can be using the 'rm' binary available
in RECIPE_SYSROOT_NATIVE, a folder that will get removed.
This causes a sporadic race-condition when trying to access the
'rm' binary of a folder already deleted.
Solve this by exclusively using the HOSTTOOLS 'rm' binary, as
this folder will not get removed.
Signed-off-by: Luis Martins <luis.pinto.martins@gmail.com>
---
meta/classes/rm_work.bbclass | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/meta/classes/rm_work.bbclass b/meta/classes/rm_work.bbclass
index 1f28bc7187..8b5fe1b808 100644
--- a/meta/classes/rm_work.bbclass
+++ b/meta/classes/rm_work.bbclass
@@ -33,6 +33,13 @@ BB_SCHEDULER ?= "completion"
BB_TASK_IONICE_LEVEL:task-rm_work = "3.0"
do_rm_work () {
+ # Force using the HOSTTOOLS 'rm' - otherwise the SYSROOT_NATIVE 'rm' can be selected depending on PATH
+ # Avoids race-condition accessing 'rm' when deleting WORKDIR folders at the end of this function
+ RM_BIN="$(PATH=${HOSTTOOLS_DIR} command -v rm)"
+ if [ -z "${RM_BIN}" ]; then
+ bbfatal "Binary 'rm' not found in HOSTTOOLS_DIR, cannot remove WORKDIR data."
+ fi
+
# If the recipe name is in the RM_WORK_EXCLUDE, skip the recipe.
for p in ${RM_WORK_EXCLUDE}; do
if [ "$p" = "${PN}" ]; then
@@ -79,7 +86,7 @@ do_rm_work () {
# sstate version since otherwise we'd need to leave 'plaindirs' around
# such as 'packages' and 'packages-split' and these can be large. No end
# of chain tasks depend directly on do_package anymore.
- rm -f -- $i;
+ "${RM_BIN}" -f -- $i;
;;
*_setscene*)
# Skip stamps which are already setscene versions
@@ -96,7 +103,7 @@ do_rm_work () {
;;
esac
done
- rm -f -- $i
+ "${RM_BIN}" -f -- $i
esac
done
@@ -106,9 +113,9 @@ do_rm_work () {
# Retain only logs and other files in temp, safely ignore
# failures of removing pseudo folers on NFS2/3 server.
if [ $dir = 'pseudo' ]; then
- rm -rf -- $dir 2> /dev/null || true
+ "${RM_BIN}" -rf -- $dir 2> /dev/null || true
elif ! echo "$excludes" | grep -q -w "$dir"; then
- rm -rf -- $dir
+ "${RM_BIN}" -rf -- $dir
fi
done
}
--
2.25.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] rm_work.bbclass: use HOSTTOOLS 'rm' binary exclusively
2022-12-24 1:49 [PATCH] rm_work.bbclass: use HOSTTOOLS 'rm' binary exclusively Luis Martins
@ 2022-12-30 23:27 ` Luís Martins
0 siblings, 0 replies; 2+ messages in thread
From: Luís Martins @ 2022-12-30 23:27 UTC (permalink / raw)
To: openembedded-core
[-- Attachment #1: Type: text/plain, Size: 3008 bytes --]
Hi, I see this was accepted for master, is it okay to port this to dunfell
and kirkstone as well ?
Best regards,
Luís Martins
On Sat, 24 Dec 2022 at 01:49, Luis Martins <luis.pinto.martins@gmail.com>
wrote:
> The do_rm_work() task is using the first available 'rm' binary
> available in PATH to remove files and folders.
> However, depending on the PATH setup and RECIPE_SYSROOT_NATIVE
> contents, the function can be using the 'rm' binary available
> in RECIPE_SYSROOT_NATIVE, a folder that will get removed.
> This causes a sporadic race-condition when trying to access the
> 'rm' binary of a folder already deleted.
> Solve this by exclusively using the HOSTTOOLS 'rm' binary, as
> this folder will not get removed.
>
> Signed-off-by: Luis Martins <luis.pinto.martins@gmail.com>
> ---
> meta/classes/rm_work.bbclass | 15 +++++++++++----
> 1 file changed, 11 insertions(+), 4 deletions(-)
>
> diff --git a/meta/classes/rm_work.bbclass b/meta/classes/rm_work.bbclass
> index 1f28bc7187..8b5fe1b808 100644
> --- a/meta/classes/rm_work.bbclass
> +++ b/meta/classes/rm_work.bbclass
> @@ -33,6 +33,13 @@ BB_SCHEDULER ?= "completion"
> BB_TASK_IONICE_LEVEL:task-rm_work = "3.0"
>
> do_rm_work () {
> + # Force using the HOSTTOOLS 'rm' - otherwise the SYSROOT_NATIVE 'rm'
> can be selected depending on PATH
> + # Avoids race-condition accessing 'rm' when deleting WORKDIR folders
> at the end of this function
> + RM_BIN="$(PATH=${HOSTTOOLS_DIR} command -v rm)"
> + if [ -z "${RM_BIN}" ]; then
> + bbfatal "Binary 'rm' not found in HOSTTOOLS_DIR, cannot remove
> WORKDIR data."
> + fi
> +
> # If the recipe name is in the RM_WORK_EXCLUDE, skip the recipe.
> for p in ${RM_WORK_EXCLUDE}; do
> if [ "$p" = "${PN}" ]; then
> @@ -79,7 +86,7 @@ do_rm_work () {
> # sstate version since otherwise we'd need to leave
> 'plaindirs' around
> # such as 'packages' and 'packages-split' and these can be
> large. No end
> # of chain tasks depend directly on do_package anymore.
> - rm -f -- $i;
> + "${RM_BIN}" -f -- $i;
> ;;
> *_setscene*)
> # Skip stamps which are already setscene versions
> @@ -96,7 +103,7 @@ do_rm_work () {
> ;;
> esac
> done
> - rm -f -- $i
> + "${RM_BIN}" -f -- $i
> esac
> done
>
> @@ -106,9 +113,9 @@ do_rm_work () {
> # Retain only logs and other files in temp, safely ignore
> # failures of removing pseudo folers on NFS2/3 server.
> if [ $dir = 'pseudo' ]; then
> - rm -rf -- $dir 2> /dev/null || true
> + "${RM_BIN}" -rf -- $dir 2> /dev/null || true
> elif ! echo "$excludes" | grep -q -w "$dir"; then
> - rm -rf -- $dir
> + "${RM_BIN}" -rf -- $dir
> fi
> done
> }
> --
> 2.25.1
>
>
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2022-12-30 23:27 ` Luís Martins
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