From: Jan Kiszka <jan.kiszka@domain.hid>
To: xenomai-core <xenomai@xenomai.org>
Subject: [Xenomai-core] [BUG] module_put called over non-root domain
Date: Sun, 20 May 2007 20:56:14 +0200 [thread overview]
Message-ID: <465099CE.2010004@domain.hid> (raw)
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Just ran into this with CONFIG_IPIPE_DEBUG_CONTEXT (maybe due to some
bug of my own):
[ 102.616000] I-pipe: Detected illicit call from domain 'Xenomai'
[ 102.616000] into a service reserved for domain 'Linux' and below.
[ 102.616000] c741bdc8 00000000 00000000 c8860ef8 c741bdec c0105683 c032c200 c13fe22c
[ 102.616000] c0361f00 c741be08 c01519ed c032f5b8 c032c742 c03380b3 c8885100 c78beac0
[ 102.616000] c741be14 c0142ce9 c7a80b30 c741be3c c884d075 c885f150 c8860ef8 c741be3c
[ 102.616000] Call Trace:
[ 102.616000] [<c0104d9f>] show_trace_log_lvl+0x1f/0x40
[ 102.616000] [<c0104e71>] show_stack_log_lvl+0xb1/0xe0
[ 102.616000] [<c0105683>] show_stack+0x33/0x40
[ 102.616000] [<c01519ed>] ipipe_check_context+0xad/0xc0
[ 102.616000] [<c0142ce9>] module_put+0x19/0x90
[ 102.616000] [<c884d075>] xnshadow_unmap+0xb5/0x130 [xeno_nucleus]
[ 102.616000] [<c8871dc5>] __shadow_delete_hook+0x25/0x30 [xeno_native]
[ 102.616000] [<c8842f78>] xnpod_schedule+0xb58/0x12f0 [xeno_nucleus]
[ 102.616000] [<c8844bfb>] xnpod_delete_thread+0x2cb/0x3d0 [xeno_nucleus]
[ 102.616000] [<c886f5bd>] rt_task_delete+0x20d/0x220 [xeno_native]
I would dare to say that module_put in xnshadow_unmap is not well placed
as it can wakeup a Linux process. The module ref-counter maintenance
needs some postponing, I guess.
Jan
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next reply other threads:[~2007-05-20 18:56 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-20 18:56 Jan Kiszka [this message]
2007-05-21 14:43 ` [Xenomai-core] [BUG] module_put called over non-root domain Jan Kiszka
2007-05-21 15:17 ` Gilles Chanteperdrix
2007-05-21 15:44 ` Jan Kiszka
2007-05-21 15:25 ` Philippe Gerum
2007-05-21 16:07 ` Philippe Gerum
2007-05-21 16:21 ` Jan Kiszka
2007-05-21 16:51 ` Philippe Gerum
2007-05-21 17:49 ` Jan Kiszka
2007-05-24 9:20 ` Philippe Gerum
2007-05-24 9:43 ` Jan Kiszka
2007-05-25 0:37 ` Philippe Gerum
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