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Bug #3349

There is no initialization of ldv_mutex_TEMPLATE

Added by Vladimir Gratinskiy about 7 years ago. Updated about 7 years ago.

Status:
Open
Priority:
Low
Assignee:
-
Category:
BLAST
Start date:
08/20/2012
Due date:
% Done:

0%

Estimated time:
Detected in build:
svn
Platform:
Published in build:

Description

In some drivers (for example drivers/infiniband/core/ib_core.ko) of linux 3.5 I've found this bug in rerouter. I wrote test drivers, and tried to make similar situation, but the bug's result wasn't repeated.

{
ldv_mutex_TEMPLATE = 1;
return ;
}
entry_point {
LDV_IN_INTERRUPT = 1;
ldv_initialize_FOREACH() {
return ;
}
...
}


Related issues

Related to C Instrumentation Framework - Feature #2462: We should develop "rerouter" functionality inside CIFClosed02/20/2012

Actions

History

#1

Updated by Evgeny Novikov about 7 years ago

  • Category changed from Environment Generation to 15
  • Status changed from New to Open
  • Assignee changed from Ilja Zakharov to Evgeny Novikov

It looks like a bug in the rerouter implementation inside BLAST. But due to we are developing a new rerouter on the basis of CIF, we must ensure that the new implementation will not have such the issue.

#2

Updated by Evgeny Novikov about 7 years ago

  • Category changed from 15 to BLAST
  • Assignee deleted (Evgeny Novikov)

Aspect rerouter hasn't such the issue. I guess that we're going to use just aspect models in near future, so this bug can be closed. Or somebody can fix plain rerouter one day...

#3

Updated by Evgeny Novikov about 7 years ago

At last I found the moment when this bug arose. This happened after fixing #453 in f9f0431 (more strictly, after changing the way of model common part processing in c8b6d97 that was done while fixing #453). From that time even for plain models common parts aren't concatenated with some file of a module. They are placed to separate file that is "linked" together with other module "objects" before verification.
It looks like there is a bug in plain rerouter because of even before fixing #453 there were such messages in debug trace:

Duplicate function skipped due to -ignoredupfn (ldv_initialize_FOREACH)
Duplicate function skipped due to -ignoredupfn (ldv_check_final_state_FOREACH)

But after fixing #453 we have much more such messages:
Duplicate function skipped due to -ignoredupfn (ldv_initialize_FOREACH)
Duplicate function skipped due to -ignoredupfn (ldv_check_final_state_FOREACH)
Duplicate function skipped due to -ignoredupfn (mutex_is_locked_ctrl_urb_lock)
Duplicate function skipped due to -ignoredupfn (mutex_is_locked_lock)
Duplicate function skipped due to -ignoredupfn (mutex_is_locked_em28xx_devlist_mutex)
Duplicate function skipped due to -ignoredupfn (mutex_unlock_ctrl_urb_lock)
Duplicate function skipped due to -ignoredupfn (mutex_unlock_lock)
Duplicate function skipped due to -ignoredupfn (mutex_unlock_em28xx_devlist_mutex)
Duplicate function skipped due to -ignoredupfn (mutex_trylock_ctrl_urb_lock)
Duplicate function skipped due to -ignoredupfn (mutex_trylock_lock)
Duplicate function skipped due to -ignoredupfn (mutex_trylock_em28xx_devlist_mutex)
Duplicate function skipped due to -ignoredupfn (mutex_lock_ctrl_urb_lock)
Duplicate function skipped due to -ignoredupfn (mutex_lock_lock)
Duplicate function skipped due to -ignoredupfn (mutex_lock_em28xx_devlist_mutex)
Duplicate function skipped due to -ignoredupfn (mutex_lock_killable_ctrl_urb_lock)
Duplicate function skipped due to -ignoredupfn (mutex_lock_killable_lock)
Duplicate function skipped due to -ignoredupfn (mutex_lock_killable_em28xx_devlist_mutex)
Duplicate function skipped due to -ignoredupfn (mutex_lock_interruptible_ctrl_urb_lock)
Duplicate function skipped due to -ignoredupfn (mutex_lock_interruptible_lock)
Duplicate function skipped due to -ignoredupfn (mutex_lock_interruptible_em28xx_devlist_mutex)
Duplicate function skipped due to -ignoredupfn (atomic_dec_and_mutex_lock_ctrl_urb_lock)
Duplicate function skipped due to -ignoredupfn (atomic_dec_and_mutex_lock_lock)
Duplicate function skipped due to -ignoredupfn (atomic_dec_and_mutex_lock_em28xx_devlist_mutex)
Duplicate function skipped due to -ignoredupfn (ldv_initialize_ctrl_urb_lock)
Duplicate function skipped due to -ignoredupfn (ldv_initialize_lock)
Duplicate function skipped due to -ignoredupfn (ldv_initialize_em28xx_devlist_mutex)
Duplicate function skipped due to -ignoredupfn (ldv_check_final_state_ctrl_urb_lock)
Duplicate function skipped due to -ignoredupfn (ldv_check_final_state_lock)
Duplicate function skipped due to -ignoredupfn (ldv_check_final_state_em28xx_devlist_mutex)
Duplicate function skipped due to -ignoredupfn (ldv_initialize_FOREACH)
Duplicate function skipped due to -ignoredupfn (ldv_check_final_state_FOREACH)

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