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binder: add failed transaction logging info

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Make sure we log relevant information about failed transactions such as
the target proc/thread, call type and transaction id. These details are
particularly important when debugging userspace issues.

Acked-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Acked-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20220429235644.697372-2-cmllamas@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Carlos Llamas 2022-04-29 23:56:40 +00:00 committed by Greg Kroah-Hartman
parent 83b716d1fe
commit 9474be34a7
1 changed files with 6 additions and 2 deletions
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8
drivers/android/binder.c
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@ -3470,8 +3470,12 @@ err_invalid_target_handle:
}
binder_debug(BINDER_DEBUG_FAILED_TRANSACTION,
"%d:%d transaction failed %d/%d, size %lld-%lld line %d\n",
proc->pid, thread->pid, return_error, return_error_param,
"%d:%d transaction %s to %d:%d failed %d/%d/%d, size %lld-%lld line %d\n",
proc->pid, thread->pid, reply ? "reply" :
(tr->flags & TF_ONE_WAY ? "async" : "call"),
target_proc ? target_proc->pid : 0,
target_thread ? target_thread->pid : 0,
t_debug_id, return_error, return_error_param,
(u64)tr->data_size, (u64)tr->offsets_size,
return_error_line);