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Add temporary debug code to allow better debugging of races

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with various udev-event tools which wrongly scan and open
internal temporary cryptsetup devices.

If cryptsetup run in debug mode (--debug) and remove of device
fails, code scan /proc directory and tries to find process name
which locked that device.

git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@141 36d66b0a-2a48-0410-832c-cd162a569da5
This commit is contained in:
Milan Broz
2009-11-15 19:26:36 +00:00
parent 16faeae057
commit c3064c9442
6 changed files with 142 additions and 0 deletions
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2
lib/libdevmapper.c
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@@ -249,6 +249,8 @@ int dm_remove_device(const char *name, int force, uint64_t size)
if (--retries && r) {
log_dbg("WARNING: other process locked internal device %s, %s.",
name, retries ? "retrying remove" : "giving up");
if (force && (crypt_get_debug_level() == CRYPT_LOG_DEBUG))
debug_processes_using_device(name);
sleep(1);
if (force && !error_target) {
/* If force flag is set, replace device with error, read-only target.