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Hi all,<BR>
<BR>
I've seen few kernel panics,<BR>
<BR>
I'm using RHEL kernel 2.6.18 + patch-53.1.19.el5.028stab053.14-combined<BR>
config is kernel-2.6.18-i686-ent.config.ovz<BR>
<BR>
Only little difference w/ other setup : i'm using drbd for data storage.<BR>
<BR>
<TT>Jul 16 01:00:07 blastor-1 kernel: CT: 101: started</TT><BR>
<TT>Jul 16 01:00:17 blastor-1 kernel: BUG: warning at kernel/ub/io_acct.c:257/ub_io_release_context() (Tainted: P )</TT><BR>
<TT>Jul 16 01:00:17 blastor-1 kernel: [<0245de96>] free_hot_cold_page+0x70/0x11a</TT><BR>
<TT>Jul 16 01:00:17 blastor-1 kernel: [<025a269e>] skb_release_data+0x4d/0x80</TT><BR>
<TT>Jul 16 01:00:17 blastor-1 kernel: [<025a2bbb>] kfree_skbmem+0x8/0x63</TT><BR>
<TT>Jul 16 01:00:17 blastor-1 kernel: [<025d0127>] tcp_ack+0x689/0x183f</TT><BR>
<TT>Jul 16 01:00:17 blastor-1 kernel: [<025d3cd8>] tcp_rcv_established+0xd1/0x84d</TT><BR>
<TT>Jul 16 01:00:17 blastor-1 kernel: [<02601416>] _spin_lock_bh+0x8/0x18</TT><BR>
<TT>Jul 16 01:00:17 blastor-1 kernel: [<025d9a65>] tcp_v4_do_rcv+0x40/0x329</TT><BR>
<TT>Jul 16 01:00:17 blastor-1 kernel: [<0259fc16>] sk_wait_data+0x89/0x98</TT><BR>
<TT>Jul 16 01:00:17 blastor-1 kernel: [<02434989>] autoremove_wake_function+0x0/0x2d</TT><BR>
<TT>Jul 16 01:00:17 blastor-1 kernel: [<025caf2e>] tcp_prequeue_process+0x5c/0x6f</TT><BR>
<TT>Jul 16 01:00:17 blastor-1 kernel: [<025cd573>] tcp_recvmsg+0x4ba/0xaa9</TT><BR>
<TT>Jul 16 01:00:17 blastor-1 kernel: [<0259edca>] sock_common_recvmsg+0x2f/0x45</TT><BR>
<TT>Jul 16 01:00:17 blastor-1 kernel: [<0259cd29>] sock_recvmsg+0xc8/0xe3</TT><BR>
<TT>Jul 16 01:00:17 blastor-1 kernel: [<02434989>] autoremove_wake_function+0x0/0x2d</TT><BR>
<TT>Jul 16 01:00:17 blastor-1 kernel: [<0241165f>] do_flush_tlb_all+0x0/0x5a</TT><BR>
<TT>Jul 16 01:00:17 blastor-1 kernel: [<840a74fd>] receive_SyncParam+0x1d5/0x1e8 [drbd]</TT><BR>
<TT>Jul 16 01:00:17 blastor-1 kernel: [<840a2868>] drbd_recv+0x5a/0xda [drbd]</TT><BR>
<TT>Jul 16 01:00:17 blastor-1 kernel: [<840a2b3f>] drbd_recv_header+0x10/0x94 [drbd]</TT><BR>
<TT>Jul 16 01:00:17 blastor-1 kernel: [<840a3157>] drbdd+0x18/0x12e [drbd]</TT><BR>
<TT>Jul 16 01:00:17 blastor-1 kernel: [<840a598e>] drbdd_init+0xc0/0x194 [drbd]</TT><BR>
<TT>Jul 16 01:00:17 blastor-1 kernel: [<840b4956>] drbd_thread_setup+0x0/0x14c [drbd]</TT><BR>
<TT>Jul 16 01:00:17 blastor-1 kernel: [<840b49dd>] drbd_thread_setup+0x87/0x14c [drbd]</TT><BR>
<TT>Jul 16 01:00:17 blastor-1 kernel: [<840b4956>] drbd_thread_setup+0x0/0x14c [drbd]</TT><BR>
<TT>Jul 16 01:00:17 blastor-1 kernel: =======================</TT><BR>
<BR>
<TT>Jul 10 18:34:59 blastor-1 kernel: CT: 101: stopped</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: BUG: warning at kernel/ub/io_acct.c:257/ub_io_release_context() (Tainted: P )</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: [<0245de96>] free_hot_cold_page+0x70/0x11a</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: [<025a269e>] skb_release_data+0x4d/0x80</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: [<025a2bbb>] kfree_skbmem+0x8/0x63</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: [<025d0127>] tcp_ack+0x689/0x183f</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: [<025d3cd8>] tcp_rcv_established+0xd1/0x84d</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: [<02601416>] _spin_lock_bh+0x8/0x18</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: [<025d9a65>] tcp_v4_do_rcv+0x40/0x329</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: [<0259fc16>] sk_wait_data+0x89/0x98</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: [<02434989>] autoremove_wake_function+0x0/0x2d</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: [<025caf2e>] tcp_prequeue_process+0x5c/0x6f</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: [<025cd573>] tcp_recvmsg+0x4ba/0xaa9</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: [<0259edca>] sock_common_recvmsg+0x2f/0x45</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: [<0259cd29>] sock_recvmsg+0xc8/0xe3</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: [<02434989>] autoremove_wake_function+0x0/0x2d</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: [<024020d6>] send_IPI_allbutself+0x50/0x53</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: [<02411521>] smp_call_function+0x95/0xc2</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: [<0241165f>] do_flush_tlb_all+0x0/0x5a</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: [<0242769f>] on_each_cpu+0x17/0x1f</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: [<840d7868>] drbd_recv+0x5a/0xda [drbd]</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: [<840d7b3f>] drbd_recv_header+0x10/0x94 [drbd]</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: [<840d8157>] drbdd+0x18/0x12e [drbd]</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: [<840da98e>] drbdd_init+0xc0/0x194 [drbd]</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: [<840e9956>] drbd_thread_setup+0x0/0x14c [drbd]</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: [<840e99dd>] drbd_thread_setup+0x87/0x14c [drbd]</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: [<840e9956>] drbd_thread_setup+0x0/0x14c [drbd]</TT><BR>
<TT>Jul 10 18:35:00 blastor-1 kernel: =======================</TT><BR>
<BR>
<BR>
I didn't found yet a way to reproduce this problem on-demand.<BR>
So far the problem is only seen in syslog/kernel messages, system is still running correctly (or looks like).<BR>
<BR>
-xavier<BR>
<BR>
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<FONT COLOR="#969696">Xavier Martin</FONT><BR>
<FONT COLOR="#969696">---------------------------------------------------------------------------------------</FONT><BR>
<FONT COLOR="#969696">T./ +33.1.49.70.99.81</FONT><BR>
<FONT COLOR="#969696">M./ +33.6.20.72.47.40</FONT><BR>
<FONT COLOR="#969696">M./ <A HREF="mailto:x.martin@enovance.com">x.martin@enovance.com</A></FONT><BR>
<FONT COLOR="#969696">W./ <A HREF="http://www.enovance.com/">www.enovance.com</A></FONT><BR>
<FONT COLOR="#969696">Standard./ +33.1.49.70.99.70 - Fax./ +33.1.49.70.99.71</FONT><BR>
<FONT COLOR="#969696">eNovance - 56 rue de la Rochefoucauld - 75009 Paris</FONT><BR>
<FONT COLOR="#969696">---------------------------------------------------------------------------------------</FONT><BR>
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