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Date: Sat, 16 Feb 2008 19:27:42 +0100 From: "Alessandro Suardi" <alessandro.suardi@...il.com> To: LKML <linux-kernel@...r.kernel.org> Subject: Re: 2.6.25-rc2: wpa_supplicant BUGs kernel in rwlock recursion On Feb 16, 2008 6:14 PM, Alessandro Suardi <alessandro.suardi@...il.com> wrote: > Fedora 8 / x86, Dell D610, ipw2200 > > testcase: Forgot to mention that this is 100% reproducable. > 1. boot into runlevel 3 > 2. log on as root on tty1 > 3. start wpa_supplicant > > 2.6.25-rc1-git4 is okay > 2.6.25-rc2 BUGs dumping stack on console, but nothing gets in /var/log/messages > 2.6.25-rc2-git1 BUGs dumping stack on console, ONLY this in /var/log/messages: > > Feb 16 16:51:49 sandman kernel: BUG: rwlock recursion on CPU#0, > wpa_supplicant/2342, c0440220 > > Will now look for changes between -rc1-git4 and -rc2... .config files > are the same for the two kernels, and available if needed. > > I might be able to provide full stack via netconsole, but there's some work > to do to set it up. OK, here goes netconsole output, hoping GMail doesn't munge it too much... Feb 16 20:13:01 sandman kernel: BUG: rwlock recursion on CPU#0, wpa_supplicant/2243, c0440220 Feb 16 20:13:01 sandman kernel: Pid: 2243, comm: wpa_supplicant Not tainted 2.6.25-rc2-git1 #2 Feb 16 20:13:01 sandman kernel: [<c01df8e8>] rwlock_bug+0x36/0x40 Feb 16 20:13:01 sandman kernel: [<c01dfbe2>] _raw_write_lock+0x2e/0x54 Feb 16 20:13:01 sandman kernel: [<c032857f>] _write_lock_bh+0x12/0x15 Feb 16 20:13:01 sandman kernel: [<c02b5506>] do_setlink+0x2ad/0x325 Feb 16 20:13:01 sandman kernel: [<c02b6505>] rtnl_setlink+0xc9/0xe7 Feb 16 20:13:01 sandman kernel: [<c02b643c>] ? rtnl_setlink+0x0/0xe7 Feb 16 20:13:01 sandman kernel: [<c02b62b4>] rtnetlink_rcv_msg+0x195/0x1af Feb 16 20:13:01 sandman kernel: [<c02b611f>] ? rtnetlink_rcv_msg+0x0/0x1af Feb 16 20:13:01 sandman kernel: [<c02bb98c>] netlink_rcv_skb+0x30/0x82 Feb 16 20:13:01 sandman kernel: [<c02b6117>] rtnetlink_rcv+0x17/0x1f Feb 16 20:13:01 sandman kernel: [<c02bb76f>] netlink_unicast+0x1b8/0x21c Feb 16 20:13:01 sandman kernel: [<c02bbf3a>] netlink_sendmsg+0x25b/0x268 Feb 16 20:13:01 sandman kernel: [<c02a4801>] sock_sendmsg+0xdd/0xf8 Feb 16 20:13:01 sandman kernel: [<c0125a15>] ? autoremove_wake_function+0x0/0x33 Feb 16 20:13:01 sandman kernel: [<c01604e3>] ? __link_path_walk+0x97c/0xa96 Feb 16 20:13:01 sandman kernel: [<c02a503d>] sys_sendto+0xa4/0xc3 Feb 16 20:13:01 sandman kernel: [<c013d06b>] ? find_lock_page+0x6e/0x75 Feb 16 20:13:01 sandman kernel: [<c013ec28>] ? filemap_fault+0x18f/0x2ee Feb 16 20:13:01 sandman kernel: [<c013cf3c>] ? unlock_page+0x24/0x27 Feb 16 20:13:01 sandman kernel: [<c01471c5>] ? __do_fault+0x303/0x341 Feb 16 20:13:01 sandman kernel: [<c016897e>] ? generic_drop_inode+0x133/0x137 Feb 16 20:13:01 sandman kernel: [<c02a5074>] sys_send+0x18/0x1a Feb 16 20:13:01 sandman kernel: [<c02a576e>] sys_socketcall+0xe6/0x186 Feb 16 20:13:01 sandman kernel: [<c0103c32>] syscall_call+0x7/0xb Feb 16 20:13:01 sandman kernel: ======================= Feb 16 20:13:01 sandman kernel: BUG: sleeping function called from invalid context at mm/slab.c:3055 Feb 16 20:13:01 sandman kernel: in_atomic():1, irqs_disabled():0 Feb 16 20:13:01 sandman kernel: Pid: 2243, comm: wpa_supplicant Not tainted 2.6.25-rc2-git1 #2 Feb 16 20:13:01 sandman kernel: [<c01116cc>] __might_sleep+0x97/0x9e Feb 16 20:13:01 sandman kernel: [<c0155d14>] kmem_cache_alloc+0x22/0x8e Feb 16 20:13:01 sandman kernel: [<c02a99b2>] __alloc_skb+0x2c/0xf8 Feb 16 20:13:01 sandman kernel: [<c02b5e80>] rtmsg_ifinfo+0x36/0xb4 Feb 16 20:13:01 sandman kernel: [<c02ae11f>] netdev_state_change+0x29/0x2c Feb 16 20:13:01 sandman kernel: [<c02b5567>] do_setlink+0x30e/0x325 Feb 16 20:13:01 sandman kernel: [<c02b6505>] rtnl_setlink+0xc9/0xe7 Feb 16 20:13:01 sandman kernel: [<c02b643c>] ? rtnl_setlink+0x0/0xe7 Feb 16 20:13:01 sandman kernel: [<c02b62b4>] rtnetlink_rcv_msg+0x195/0x1af Feb 16 20:13:01 sandman kernel: [<c02b611f>] ? rtnetlink_rcv_msg+0x0/0x1af Feb 16 20:13:01 sandman kernel: [<c02bb98c>] netlink_rcv_skb+0x30/0x82 Feb 16 20:13:01 sandman kernel: [<c02b6117>] rtnetlink_rcv+0x17/0x1f Feb 16 20:13:01 sandman kernel: [<c02bb76f>] netlink_unicast+0x1b8/0x21c Feb 16 20:13:01 sandman kernel: [<c02bbf3a>] netlink_sendmsg+0x25b/0x268 Feb 16 20:13:01 sandman kernel: [<c02a4801>] sock_sendmsg+0xdd/0xf8 Feb 16 20:13:01 sandman kernel: [<c0125a15>] ? autoremove_wake_function+0x0/0x33 Feb 16 20:13:01 sandman kernel: [<c01604e3>] ? __link_path_walk+0x97c/0xa96 Feb 16 20:13:01 sandman kernel: [<c02a503d>] sys_sendto+0xa4/0xc3 Feb 16 20:13:01 sandman kernel: [<c013d06b>] ? find_lock_page+0x6e/0x75 Feb 16 20:13:01 sandman kernel: [<c013ec28>] ? filemap_fault+0x18f/0x2ee Feb 16 20:13:01 sandman kernel: [<c013cf3c>] ? unlock_page+0x24/0x27 Feb 16 20:13:01 sandman kernel: [<c01471c5>] ? __do_fault+0x303/0x341 Feb 16 20:13:01 sandman kernel: [<c016897e>] ? generic_drop_inode+0x133/0x137 Feb 16 20:13:01 sandman kernel: [<c02a5074>] sys_send+0x18/0x1a Feb 16 20:13:01 sandman kernel: [<c02a576e>] sys_socketcall+0xe6/0x186 Feb 16 20:13:01 sandman kernel: [<c0103c32>] syscall_call+0x7/0xb Feb 16 20:13:01 sandman kernel: ======================= Feb 16 20:13:01 sandman kernel: BUG: scheduling while atomic: wpa_supplicant/2243/0x10000200 Feb 16 20:13:01 sandman kernel: Pid: 2243, comm: wpa_supplicant Not tainted 2.6.25-rc2-git1 #2 Feb 16 20:13:01 sandman kernel: [<c0113c3b>] __schedule_bug+0x42/0x47 Feb 16 20:13:01 sandman kernel: [<c0326be2>] schedule+0x42/0x24c Feb 16 20:13:01 sandman kernel: [<c0113c65>] __cond_resched+0x25/0x3b Feb 16 20:13:01 sandman kernel: [<c0326e50>] _cond_resched+0x24/0x2f Feb 16 20:13:01 sandman kernel: [<c0155d19>] kmem_cache_alloc+0x27/0x8e Feb 16 20:13:01 sandman kernel: [<c02a99b2>] __alloc_skb+0x2c/0xf8 Feb 16 20:13:01 sandman kernel: [<c02b5e80>] rtmsg_ifinfo+0x36/0xb4 Feb 16 20:13:01 sandman kernel: [<c02ae11f>] netdev_state_change+0x29/0x2c Feb 16 20:13:01 sandman kernel: [<c02b5567>] do_setlink+0x30e/0x325 Feb 16 20:13:01 sandman kernel: [<c02b6505>] rtnl_setlink+0xc9/0xe7 Feb 16 20:13:01 sandman kernel: [<c02b643c>] ? rtnl_setlink+0x0/0xe7 Feb 16 20:13:01 sandman kernel: [<c02b62b4>] rtnetlink_rcv_msg+0x195/0x1af Feb 16 20:13:01 sandman kernel: [<c02b611f>] ? rtnetlink_rcv_msg+0x0/0x1af Feb 16 20:13:01 sandman kernel: [<c02bb98c>] netlink_rcv_skb+0x30/0x82 Feb 16 20:13:01 sandman kernel: [<c02b6117>] rtnetlink_rcv+0x17/0x1f Feb 16 20:13:01 sandman kernel: [<c02bb76f>] netlink_unicast+0x1b8/0x21c Feb 16 20:13:01 sandman kernel: [<c02bbf3a>] netlink_sendmsg+0x25b/0x268 Feb 16 20:13:01 sandman kernel: [<c02a4801>] sock_sendmsg+0xdd/0xf8 Feb 16 20:13:01 sandman kernel: [<c0125a15>] ? autoremove_wake_function+0x0/0x33 Feb 16 20:13:01 sandman kernel: [<c01604e3>] ? __link_path_walk+0x97c/0xa96 Feb 16 20:13:01 sandman kernel: [<c02a503d>] sys_sendto+0xa4/0xc3 Feb 16 20:13:01 sandman kernel: [<c013d06b>] ? find_lock_page+0x6e/0x75 Feb 16 20:13:01 sandman kernel: [<c013ec28>] ? filemap_fault+0x18f/0x2ee Feb 16 20:13:01 sandman kernel: [<c013cf3c>] ? unlock_page+0x24/0x27 Feb 16 20:13:01 sandman kernel: [<c01471c5>] ? __do_fault+0x303/0x341 Feb 16 20:13:01 sandman kernel: [<c016897e>] ? generic_drop_inode+0x133/0x137 Feb 16 20:13:01 sandman kernel: [<c02a5074>] sys_send+0x18/0x1a Feb 16 20:13:01 sandman kernel: [<c02a576e>] sys_socketcall+0xe6/0x186 Feb 16 20:13:01 sandman kernel: [<c0103c32>] syscall_call+0x7/0xb Feb 16 20:13:01 sandman kernel: ======================= Feb 16 20:13:01 sandman kernel: BUG: scheduling while atomic: wpa_supplicant/2243/0x10000200 Feb 16 20:13:01 sandman kernel: Pid: 2243, comm: wpa_supplicant Not tainted 2.6.25-rc2-git1 #2 Feb 16 20:13:01 sandman kernel: [<c0113c3b>] __schedule_bug+0x42/0x47 Feb 16 20:13:01 sandman kernel: [<c0326be2>] schedule+0x42/0x24c Feb 16 20:13:01 sandman kernel: [<c0113c65>] __cond_resched+0x25/0x3b Feb 16 20:13:01 sandman kernel: [<c0326e50>] _cond_resched+0x24/0x2f Feb 16 20:13:01 sandman kernel: [<c03277b2>] mutex_lock+0x1a/0x24 Feb 16 20:13:01 sandman kernel: [<c02af87e>] netdev_run_todo+0x13/0x1d9 Feb 16 20:13:01 sandman kernel: [<c02b60ef>] rtnl_unlock+0x12/0x14 Feb 16 20:13:01 sandman kernel: [<c02b611c>] rtnetlink_rcv+0x1c/0x1f Feb 16 20:13:01 sandman kernel: [<c02bb76f>] netlink_unicast+0x1b8/0x21c Feb 16 20:13:01 sandman kernel: [<c02bbf3a>] netlink_sendmsg+0x25b/0x268 Feb 16 20:13:01 sandman kernel: [<c02a4801>] sock_sendmsg+0xdd/0xf8 Feb 16 20:13:01 sandman kernel: [<c0125a15>] ? autoremove_wake_function+0x0/0x33 Feb 16 20:13:01 sandman kernel: [<c01604e3>] ? __link_path_walk+0x97c/0xa96 Feb 16 20:13:01 sandman kernel: [<c02a503d>] sys_sendto+0xa4/0xc3 Feb 16 20:13:01 sandman kernel: [<c013d06b>] ? find_lock_page+0x6e/0x75 Feb 16 20:13:01 sandman kernel: [<c013ec28>] ? filemap_fault+0x18f/0x2ee Feb 16 20:13:01 sandman kernel: [<c013cf3c>] ? unlock_page+0x24/0x27 Feb 16 20:13:01 sandman kernel: [<c01471c5>] ? __do_fault+0x303/0x341 Feb 16 20:13:01 sandman kernel: [<c016897e>] ? generic_drop_inode+0x133/0x137 Feb 16 20:13:01 sandman kernel: [<c02a5074>] sys_send+0x18/0x1a Feb 16 20:13:01 sandman kernel: [<c02a576e>] sys_socketcall+0xe6/0x186 Feb 16 20:13:01 sandman kernel: [<c0103c32>] syscall_call+0x7/0xb Feb 16 20:13:01 sandman kernel: ======================= Feb 16 20:13:01 sandman kernel: wpa_supplicant[2243]: segfault at 8074760 ip 08074760 sp bfcf7e4c error 4 Feb 16 20:13:01 sandman kernel: BUG: scheduling while atomic: wpa_supplicant/2243/0x00000200 Feb 16 20:13:01 sandman kernel: Pid: 2243, comm: wpa_supplicant Not tainted 2.6.25-rc2-git1 #2 Feb 16 20:13:01 sandman kernel: [<c0113c3b>] __schedule_bug+0x42/0x47 Feb 16 20:13:01 sandman kernel: [<c0326be2>] schedule+0x42/0x24c Feb 16 20:13:01 sandman kernel: [<c010edd6>] ? do_page_fault+0x0/0x4be Feb 16 20:13:01 sandman kernel: [<c0103cae>] work_resched+0x5/0x16 Feb 16 20:13:01 sandman kernel: ======================= Feb 16 20:13:01 sandman kernel: BUG: scheduling while atomic: wpa_supplicant/2243/0x10000200 Feb 16 20:13:01 sandman kernel: Pid: 2243, comm: wpa_supplicant Not tainted 2.6.25-rc2-git1 #2 Feb 16 20:13:01 sandman kernel: [<c0113c3b>] __schedule_bug+0x42/0x47 Feb 16 20:13:01 sandman kernel: [<c0326be2>] schedule+0x42/0x24c Feb 16 20:13:01 sandman kernel: [<c0113c65>] __cond_resched+0x25/0x3b Feb 16 20:13:01 sandman kernel: [<c0326e50>] _cond_resched+0x24/0x2f Feb 16 20:13:01 sandman kernel: [<c0327aba>] down_write+0x1a/0x30 Feb 16 20:13:01 sandman kernel: [<c015cbd7>] do_coredump+0x8e/0x6ff Feb 16 20:13:01 sandman kernel: [<c02b9896>] ? netpoll_send_udp+0x252/0x25c Feb 16 20:13:01 sandman kernel: [<c0328561>] ? _spin_unlock+0x8/0xa Feb 16 20:13:01 sandman kernel: [<c01d0105>] ? _atomic_dec_and_lock+0x25/0x30 Feb 16 20:13:01 sandman kernel: [<c011e089>] ? __sigqueue_free+0x2e/0x31 Feb 16 20:13:01 sandman kernel: [<c011e43d>] ? __dequeue_signal+0xf3/0x14f Feb 16 20:13:01 sandman kernel: [<c011eaa4>] ? recalc_sigpending+0xd/0x2d Feb 16 20:13:01 sandman kernel: [<c011f9ce>] ? dequeue_signal+0x103/0x11f Feb 16 20:13:01 sandman kernel: [<c011fd6b>] get_signal_to_deliver+0x2ad/0x2d8 Feb 16 20:13:01 sandman kernel: [<c010edd6>] ? do_page_fault+0x0/0x4be Feb 16 20:13:01 sandman kernel: [<c0103273>] do_notify_resume+0x94/0x754 Feb 16 20:13:01 sandman kernel: [<c010edd6>] ? do_page_fault+0x0/0x4be Feb 16 20:13:01 sandman kernel: [<c01d2cb9>] ? rb_insert_color+0x99/0xbc Feb 16 20:13:01 sandman kernel: [<c0110f01>] ? __dequeue_entity+0x23/0x27 Feb 16 20:13:01 sandman kernel: [<c032862e>] ? _spin_unlock_irq+0x8/0xb Feb 16 20:13:01 sandman kernel: [<c01139d1>] ? finish_task_switch+0x28/0x58 Feb 16 20:13:01 sandman kernel: [<c0326dc7>] ? schedule+0x227/0x24c Feb 16 20:13:01 sandman kernel: [<c010edd6>] ? do_page_fault+0x0/0x4be Feb 16 20:13:01 sandman kernel: [<c0103cd2>] work_notifysig+0x13/0x19 Feb 16 20:13:01 sandman kernel: ======================= Feb 16 20:13:01 Kernel panic - not syncing: Aiee, killing interrupt handler! As always available for patch testing. thanks, --alessandro "We act as though comfort and luxury were the chief requirements of life, when all that we need to make us really happy is something to be enthusiastic about." (Charles Kingsley) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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