Could this be done with:
CONFIG_PROVE_LOCKING = y
CONFIG_4KSTACKS = n
and, if possible, to send the first full lockdep error
message with some lines before it? It would be nice to
try to be more exact when hand writing, too.
Regards,
Jarek P.
I already have
CONFIG_PROVE_LOCKING=y
# CONFIG_4KSTACKS is not set
.config is at
http://bugzilla.kernel.org/attachment.cgi?id=10660&action=view
Also all information i've provied was recieved by serial console and it's
not hand writing.
I've checked logs and right before lockup there is oops in syslog
Mar 5 21:50:44 vpn2 skb_under_panic: text:c02248a2 len:207 put:1
head:db96e22c data:db96e22b tail:db96e2fa end:db96e82c dev:<NULL>
Mar 5 21:50:44 vpn2 ------------[ cut here ]------------
Mar 5 21:50:44 vpn2 kernel BUG at net/core/skbuff.c:112!
Mar 5 21:50:44 vpn2 invalid opcode: 0000 [#1]
Mar 5 21:50:44 vpn2 SMP
Mar 5 21:50:44 vpn2 Modules linked in: 8021q ipt_TCPMSS xt_tcpudp
xt_pkttype iptable_filter ip_tables x_tables i2c_i801 i2c_core
Mar 5 21:50:44 vpn2 CPU: 1
Mar 5 21:50:44 vpn2 EIP: 0060:[<c024d1e4>] Not tainted VLI
Mar 5 21:50:44 vpn2 EFLAGS: 00010092 (2.6.20-gentoo #10)
Mar 5 21:50:44 vpn2 EIP is at skb_under_panic+0x59/0x5d
Mar 5 21:50:44 vpn2 eax: 00000072 ebx: db96e22c ecx: 00000001 edx:
de20d4d0
Mar 5 21:50:44 vpn2 esi: 00000000 edi: db96e2fc ebp: dc5ab2e8 esp:
dcaf5e84
Mar 5 21:50:44 vpn2 ds: 007b es: 007b ss: 0068
Mar 5 21:50:44 vpn2 Process pptpctrl (pid: 5203, ti=dcaf4000 task=de20d4d0
task.ti=dcaf4000)
Mar 5 21:50:44 vpn2 Stack: c0315e34 c02248a2 000000cf 00000001 db96e22c
db96e22b db96e2fa db96e82c
Mar 5 21:50:44 vpn2 c0301eef 00000004 00000000 c02248b0 de20d4d0 de20da04
de20d4d0 00000000
Mar 5 21:50:44 vpn2 db96e22b 000000cf de3e28f0 de3e2884 00000000 ddae82ac
de3e2854 00000296
Mar 5 21:50:44 vpn2 Call Trace:
Mar 5 21:50:44 vpn2 [<c02248a2>] ppp_asynctty_receive+0x6d2/0x710
Mar 5 21:50:44 vpn2 [<c02248b0>] ppp_asynctty_receive+0x6e0/0x710
Mar 5 21:50:44 vpn2 [<c01d5a09>] pty_write+0x39/0x41
Mar 5 21:50:44 vpn2 [<c01d37e1>] write_chan+0x212/0x320
Mar 5 21:50:44 vpn2 [<c0116209>] default_wake_function+0x0/0xc
Mar 5 21:50:44 vpn2 [<c01d1028>] tty_write+0x11c/0x1d0
Mar 5 21:50:44 vpn2 [<c01d35cf>] write_chan+0x0/0x320
Mar 5 21:50:44 vpn2 [<c015d502>] vfs_write+0x87/0xf0
Mar 5 21:50:44 vpn2 [<c01d0f0c>] tty_write+0x0/0x1d0
Mar 5 21:50:44 vpn2 [<c015daa9>] sys_write+0x41/0x6a
Mar 5 21:50:44 vpn2 [<c0102dae>] sysenter_past_esp+0x5f/0x99
Mar 5 21:50:44 vpn2 =======================
Mar 5 21:50:44 vpn2 Code: 00 00 89 5c 24 14 8b 98 8c 00 00 00 89 5c 24 10
89 54 24 0c 8b 40 60 89 44 24 08 89 4c 24 04 c7 04 24 34 5e 31 c0 e8 8e e4
ec ff <0
f> 0b eb fe 56 53 83 ec 24 8b 70 14 bb ef 1e 30 c0 85 f6 0f 45
Mar 5 21:50:44 vpn2 EIP: [<c024d1e4>] skb_under_panic+0x59/0x5d SS:ESP
0068:dcaf5e84
Another thing - when i`ve changed HZ from 100 too 300 there is no such
lockups for few days.
Jura
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