#1720: On 2.6.15.4/UDEV085, swapon sometimes fails
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Reporter: [EMAIL PROTECTED] | Owner: [EMAIL PROTECTED]
Type: defect | Status: assigned
Priority: normal | Milestone:
Component: Book | Version: SVN
Severity: normal | Resolution:
Keywords: |
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Comment (by [EMAIL PROTECTED]):
Let's make sure that the loop indeed works.
1) Compile a simple uevent logger:
{{{
cat >bug.c <<"EOF"
/* Simple event recorder */
#define _GNU_SOURCE
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <argz.h>
int main(int argc, char * argv[])
{
char * envz;
size_t len;
int bug;
bug = open("/dev/bug", O_WRONLY | O_APPEND);
if (bug == -1)
return 0;
setenv("_SEPARATOR", "--------------------------------------", 1);
argz_create(environ, &envz, &len);
argz_stringify(envz, len, '\n');
envz[len-1]='\n';
write(bug, envz, len);
close(bug);
free(envz);
return 0;
}
EOF
gcc -o /lib/udev/bug bug.c
}}}
2) Add a logging rule to a separate file:
{{{
cat >/etc/udev/rules.d/90-bug.rules <<"EOF"
ACTION=="add", RUN+="bug"
EOF
}}}
3) Modify the udev initscript not as Matthew said in the previous comment,
but in the following way (that still incorporates his wishes):
At the end of walk_sysfs(), add:
{{{
# until we know how to do better, just wait for _all_ events to
finish
loop=300
while test -d /dev/.udev/queue; do
sleep 0.1
test "$loop" -gt 0 || break
loop=$(($loop - 1))
done
>/dev/bug
test "$loop" -gt 0
evaluate_retval
sleep 5
if test -s /dev/bug; then
mv /dev/bug /dev/bugreport
boot_mesg "Please paste the /dev/bugreport file to" ${WARNING}
boot_mesg "http://wiki.linuxfromscratch.org/lfs/ticket/1720";
boot_mesg "Otherwise, the next version of LFS may be
unbootable on your system!"
echo_failure
sleep 10
else
rm -f /dev/bug
fi
}}}
--
Ticket URL: <http://wiki.linuxfromscratch.org/lfs/ticket/1720>
LFS Trac <http://wiki.linuxfromscratch.org/lfs/>
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