Hi,
okay, as it seems, I cannot recreate this here please could you make the following changes to get_task_state()
There is nothing new in kernel log after changes, oops in attachement. Jarek Dylag
Jan 3 13:02:33 v2140 [10966.004095] BUG: unable to handle kernel NULL pointer dereference Jan 3 13:02:33 v2140 at virtual address 00000000 Jan 3 13:02:33 v2140 [10966.004192] printing eip: Jan 3 13:02:33 v2140 [10966.004227] c01b2498 Jan 3 13:02:33 v2140 [10966.004260] *pde = 00000000 Jan 3 13:02:33 v2140 [10966.004300] Oops: 0000 [#1] Jan 3 13:02:33 v2140 [10966.004341] Jan 3 13:02:33 v2140 SMP Jan 3 13:02:33 v2140 DEBUG_PAGEALLOC Jan 3 13:02:33 v2140 Jan 3 13:02:33 v2140 [10966.004428] Modules linked in: Jan 3 13:02:33 v2140 ipt_LOG Jan 3 13:02:33 v2140 ipt_owner Jan 3 13:02:33 v2140 xt_state Jan 3 13:02:33 v2140 xt_tcpudp Jan 3 13:02:33 v2140 iptable_filter Jan 3 13:02:33 v2140 ipt_MASQUERADE Jan 3 13:02:33 v2140 iptable_nat Jan 3 13:02:33 v2140 ip_nat Jan 3 13:02:33 v2140 ip_tables Jan 3 13:02:33 v2140 x_tables Jan 3 13:02:33 v2140 ecb Jan 3 13:02:33 v2140 af_key Jan 3 13:02:33 v2140 tun Jan 3 13:02:33 v2140 netconsole Jan 3 13:02:33 v2140 e100 Jan 3 13:02:33 v2140 r8169 Jan 3 13:02:33 v2140 crc32 Jan 3 13:02:33 v2140 ip_conntrack_ftp Jan 3 13:02:33 v2140 ip_conntrack Jan 3 13:02:33 v2140 nfnetlink Jan 3 13:02:33 v2140 Jan 3 13:02:33 v2140 [10966.005037] CPU: 2 Jan 3 13:02:33 v2140 [10966.005040] EIP: 0060:[<c01b2498>] Not tainted VLI Jan 3 13:02:33 v2140 [10966.005044] EFLAGS: 00010286 (2.6.19.1-vs2.2.0-rc5.p4smp.53 #1) Jan 3 13:02:33 v2140 [10966.005201] EIP is at do_task_stat+0xa5/0x766 Jan 3 13:02:33 v2140 [10966.005253] eax: 00000000 ebx: d91ef000 ecx: c06ecbb4 edx: 00000040 Jan 3 13:02:33 v2140 [10966.005311] esi: dbdf45a0 edi: dbdf45a0 ebp: cc0e9f14 esp: cc0e9dc0 Jan 3 13:02:33 v2140 [10966.005368] ds: 007b es: 007b ss: 0068 Jan 3 13:02:33 v2140 [10966.005418] Process pidof (pid: 23423[#2149], ti=cc0e8000 task=da4e45a0 task.ti=cc0e8000) Jan 3 13:02:33 v2140 Jan 3 13:02:33 v2140 [10966.005473] Stack: Jan 3 13:02:33 v2140 da4e45a0 Jan 3 13:02:33 v2140 c01142ed Jan 3 13:02:33 v2140 cc0e9de8 Jan 3 13:02:33 v2140 c0141f03 Jan 3 13:02:33 v2140 da4e45a0 Jan 3 13:02:33 v2140 da4e45a0 Jan 3 13:02:33 v2140 c0588874 Jan 3 13:02:33 v2140 00000000 Jan 3 13:02:33 v2140 Jan 3 13:02:33 v2140 [10966.005788] Jan 3 13:02:33 v2140 cc0e9e00 Jan 3 13:02:33 v2140 c0140dd6 Jan 3 13:02:33 v2140 da4e45a0 Jan 3 13:02:33 v2140 00000000 Jan 3 13:02:33 v2140 c0588874 Jan 3 13:02:33 v2140 da4e45a0 Jan 3 13:02:33 v2140 c06e4a44 Jan 3 13:02:33 v2140 00000296 Jan 3 13:02:33 v2140 Jan 3 13:02:33 v2140 [10966.006090] Jan 3 13:02:33 v2140 cc0e9e1c Jan 3 13:02:33 v2140 00000296 Jan 3 13:02:33 v2140 c06e4a44 Jan 3 13:02:33 v2140 00000001 Jan 3 13:02:33 v2140 c01142ed Jan 3 13:02:33 v2140 c151a4c0 Jan 3 13:02:33 v2140 00000001 Jan 3 13:02:33 v2140 cc0e9e3c Jan 3 13:02:33 v2140 Jan 3 13:02:33 v2140 [10966.006427] Call Trace: Jan 3 13:02:33 v2140 [10966.006510] [<c0103dbd>] Jan 3 13:02:33 v2140 show_trace_log_lvl+0x2f/0x45 Jan 3 13:02:33 v2140 [10966.006593] [<c0103e9b>] Jan 3 13:02:33 v2140 show_stack_log_lvl+0x9f/0xa7 Jan 3 13:02:33 v2140 [10966.006678] [<c01040b2>] Jan 3 13:02:33 v2140 show_registers+0x1b1/0x242 Jan 3 13:02:33 v2140 [10966.006755] [<c0104345>] Jan 3 13:02:33 v2140 die+0x151/0x246 Jan 3 13:02:33 v2140 [10966.006829] [<c058a68e>] Jan 3 13:02:33 v2140 do_page_fault+0x498/0x58a Jan 3 13:02:33 v2140 [10966.006919] [<c0588c09>] Jan 3 13:02:33 v2140 error_code+0x39/0x40 Jan 3 13:02:33 v2140 [10966.006998] [<c01b2b9b>] Jan 3 13:02:33 v2140 proc_tgid_stat+0x20/0x22 Jan 3 13:02:33 v2140 [10966.007080] [<c01ad6dd>] Jan 3 13:02:33 v2140 proc_info_read+0x12f/0x17e Jan 3 13:02:33 v2140 [10966.007166] [<c01761f0>] Jan 3 13:02:33 v2140 vfs_read+0xa3/0x177 Jan 3 13:02:33 v2140 [10966.007244] [<c017658e>] Jan 3 13:02:33 v2140 sys_read+0x47/0x6b Jan 3 13:02:33 v2140 [10966.040593] [<c0102feb>] Jan 3 13:02:33 v2140 syscall_call+0x7/0xb Jan 3 13:02:33 v2140 [10966.040650] ======================= Jan 3 13:02:33 v2140 [10966.040685] Code: Jan 3 13:02:33 v2140 07 Jan 3 13:02:33 v2140 8b Jan 3 13:02:33 v2140 97 Jan 3 13:02:33 v2140 8c Jan 3 13:02:33 v2140 00 Jan 3 13:02:33 v2140 00 Jan 3 13:02:33 v2140 00 Jan 3 13:02:33 v2140 b9 Jan 3 13:02:33 v2140 98 Jan 3 13:02:33 v2140 cb Jan 3 13:02:33 v2140 6e Jan 3 13:02:33 v2140 c0 Jan 3 13:02:33 v2140 83 Jan 3 13:02:33 v2140 e0 Jan 3 13:02:33 v2140 1f Jan 3 13:02:33 v2140 83 Jan 3 13:02:33 v2140 e2 Jan 3 13:02:33 v2140 60 Jan 3 13:02:33 v2140 09 Jan 3 13:02:33 v2140 d0 Jan 3 13:02:33 v2140 74 Jan 3 13:02:33 v2140 13 Jan 3 13:02:33 v2140 83 Jan 3 13:02:33 v2140 c1 Jan 3 13:02:33 v2140 04 Jan 3 13:02:33 v2140 d1 Jan 3 13:02:33 v2140 e8 Jan 3 13:02:33 v2140 75 Jan 3 13:02:33 v2140 f9 Jan 3 13:02:33 v2140 85 Jan 3 13:02:33 v2140 c9 Jan 3 13:02:33 v2140 75 Jan 3 13:02:33 v2140 08 Jan 3 13:02:33 v2140 0f Jan 3 13:02:33 v2140 0b Jan 3 13:02:33 v2140 a4 Jan 3 13:02:33 v2140 00 Jan 3 13:02:33 v2140 1a Jan 3 13:02:33 v2140 65 Jan 3 13:02:33 v2140 5b Jan 3 13:02:33 v2140 c0 Jan 3 13:02:33 v2140 8b Jan 3 13:02:33 v2140 01 Jan 3 13:02:33 v2140 unparseable log message: "<0f> " Jan 3 13:02:33 v2140 b6 Jan 3 13:02:33 v2140 00 Jan 3 13:02:33 v2140 c7 Jan 3 13:02:33 v2140 45 Jan 3 13:02:33 v2140 c4 Jan 3 13:02:33 v2140 00 Jan 3 13:02:33 v2140 00 Jan 3 13:02:33 v2140 00 Jan 3 13:02:33 v2140 00 Jan 3 13:02:33 v2140 c7 Jan 3 13:02:33 v2140 45 Jan 3 13:02:33 v2140 c8 Jan 3 13:02:33 v2140 00 Jan 3 13:02:33 v2140 00 Jan 3 13:02:33 v2140 00 Jan 3 13:02:33 v2140 00 Jan 3 13:02:33 v2140 88 Jan 3 13:02:33 v2140 45 Jan 3 13:02:33 v2140 af Jan 3 13:02:33 v2140 c7 Jan 3 13:02:33 v2140 Jan 3 13:02:33 v2140 [10966.063165] History: SEQ: 3e4b7 NR_CPUS: 8 Jan 3 13:02:33 v2140 [10966.063200] (#e37f,*2):c0119c1a set_vx_info cfd5c000[#2030,91.30] @d3762f9c Jan 3 13:02:33 v2140 [10966.063236] (#e4a4,*2):c010420f oops Jan 3 13:02:33 v2140 [10966.063267] (#e469,*2):c0119d24 clr_vx_info ce76a000[#2149,91.29] @cf858f9c Jan 3 13:02:33 v2140 [10966.063304] (#e468,*2):c01369d1 release_vx_info ce76a000[#2149,91.30] @cbb005a0 Jan 3 13:02:33 v2140 [10966.063350] (#e463,*2):c0119d24 clr_vx_info ce76a000[#2149,92.30] @dc785f9c Jan 3 13:02:33 v2140 [10966.063386] (#e462,*2):c01369d1 release_vx_info ce76a000[#2149,92.31] @cbbca5a0 Jan 3 13:02:33 v2140 [10966.063432] (#e45c,*2):c0119d24 clr_vx_info ce76a000[#2149,91.30] @dcff1f9c Jan 3 13:02:33 v2140 [10966.063469] (#e45b,*2):c0119c1a set_vx_info ce76a000[#2149,90.30] @c97f3f9c Jan 3 13:02:33 v2140 [10966.063506] (#e457,*2):c0119d24 clr_vx_info ce76a000[#2149,89.29] @c97f3f9c Jan 3 13:02:33 v2140 [10966.063543] (#e456,*2):c0119c1a set_vx_info ce76a000[#2149,88.29] @d62c0f9c Jan 3 13:02:33 v2140 [10966.063580] (#e451,*2):c0119d24 clr_vx_info ce76a000[#2149,89.29] @d62c0f9c Jan 3 13:02:33 v2140 [10966.063617] (#e44f,*2):c0119c1a set_vx_info ce76a000[#2149,89.29] @dc785f9c Jan 3 13:02:33 v2140 [10966.063654] (#e449,*2):c0508005 clr_vx_info ce76a000[#2149,88.28] @c7291d54 Jan 3 13:02:33 v2140 [10966.063691] (#e448,*2):c0508005 clr_vx_info ce76a000[#2149,89.28] @d95d4d54 Jan 3 13:02:33 v2140 [10966.063728] (#e447,*2):c05091fd set_vx_info ce76a000[#2149,88.28] @d95d4d54 Jan 3 13:02:33 v2140 [10966.063765] (#e446,*2):c05091fd set_vx_info ce76a000[#2149,87.28] @c7291d54 Jan 3 13:02:33 v2140 [10966.063803] (#e43d,*2):c0119d24 clr_vx_info ce76a000[#2149,85.27] @dc785f9c Jan 3 13:02:33 v2140 [10966.063839] (#e43c,*2):c0119c1a set_vx_info ce76a000[#2149,84.27] @d62c0f9c Jan 3 13:02:33 v2140 [10966.063877] (#e43b,*2):c0119d24 clr_vx_info ce76a000[#2149,85.27] @d62c0f9c Jan 3 13:02:33 v2140 [10966.063913] (#e433,*2):c01369d1 release_vx_info ce76a000[#2149,82.26] @ca9d45a0 Jan 3 13:02:33 v2140 [10966.063961] (#e415,*2):c0119d24 clr_vx_info ce76a000[#2149,80.26] @d3ef2f9c Jan 3 13:02:33 v2140 [10966.063998] (#e413,*2):c0119c1a set_vx_info ce76a000[#2149,79.26] @d62c0f9c Jan 3 13:02:33 v2140 [10966.064036] (#e3f3,*2):c01198a7 clr_vx_info cd652000[#1279,66.19] @dada3a38 Jan 3 13:02:33 v2140 [10966.064073] (#e3f2,*2):c01198a7 clr_vx_info cd652000[#1279,67.19] @c26dca38 Jan 3 13:02:33 v2140 [10966.065502] (#e3f1,*2):c01198a7 clr_vx_info cd652000[#1279,68.19] @ce646a38 Jan 3 13:02:33 v2140 [10966.065541] (#e3f0,*2):c01198a7 clr_vx_info cd652000[#1279,69.19] @d1c32a38 Jan 3 13:02:33 v2140 [10966.065578] (#e3ef,*2):c01198a7 clr_vx_info cd652000[#1279,70.19] @c5e11a38 Jan 3 13:02:33 v2140 [10966.065615] (#e3ee,*2):c01198a7 clr_vx_info cd652000[#1279,71.19] @de08ca38 Jan 3 13:02:33 v2140 [10966.065653] (#e3ed,*2):c01198a7 clr_vx_info cd652000[#1279,72.19] @d3023a38 Jan 3 13:02:33 v2140 [10966.065689] (#e3ea,*2):c01198a7 clr_vx_info cfd5c000[#2030,74.20] @de0eca38 Jan 3 13:02:33 v2140 [10966.065726] (#e3e8,*2):c01198a7 clr_vx_info cfd5c000[#2030,76.20] @d4f8ca38 Jan 3 13:02:33 v2140 [10966.065764] (#e3e6,*2):c01198a7 clr_vx_info cfd5c000[#2030,78.20] @de44ea38 Jan 3 13:02:33 v2140 [10966.065801] (#e3e5,*2):c01198a7 clr_vx_info cfd5c000[#2030,79.20] @d06bca38 Jan 3 13:02:33 v2140 [10966.065839] (#e3e4,*2):c01198a7 clr_vx_info cfd5c000[#2030,80.20] @c9f11a38 Jan 3 13:02:33 v2140 [10966.065876] (#e3dd,*2):c0119d24 clr_vx_info cfd5c000[#2030,85.22] @d62c0f9c Jan 3 13:02:33 v2140 [10966.065913] (#e3da,*2):c01369d1 release_vx_info cfd5c000[#2030,87.23] @dda535a0 Jan 3 13:02:33 v2140 [10966.065962] (#e3d8,*2):c0119d24 clr_vx_info cfd5c000[#2030,88.24] @d4c6af9c Jan 3 13:02:33 v2140 [10966.065998] (#e3ce,*2):c011bbf5 claim_vx_info cfd5c000[#2030,87.23] @c84545a0 Jan 3 13:02:33 v2140 [10966.066036] (#e3cd,*2):c0119c1a set_vx_info cfd5c000[#2030,86.23] @d9867f9c Jan 3 13:02:33 v2140 [10966.066073] (#e3cc,*2):c011aaf2 init_vx_info cfd5c000[#2030,85.23] @c8454a38 Jan 3 13:02:33 v2140 [10966.066112] (#e3cb,*2):c0119d24 clr_vx_info cfd5c000[#2030,86.23] @d9867f9c Jan 3 13:02:33 v2140 [10966.072756] (#e3c8,*2):c01198a7 clr_vx_info cfd5c000[#2030,86.24] @c8454a38 Jan 3 13:02:33 v2140 [10966.072793] (#e3c7,*2):c01198a7 clr_vx_info cfd5c000[#2030,87.24] @d99e4a38 Jan 3 13:02:33 v2140 [10966.072830] (#e3c6,*2):c01198a7 clr_vx_info cfd5c000[#2030,88.24] @d9455a38 Jan 3 13:02:33 v2140 [10966.072866] (#e3c5,*2):c01198a7 clr_vx_info cfd5c000[#2030,89.24] @ce560a38 Jan 3 13:02:33 v2140 [10966.072902] (#e3c4,*2):c01198a7 clr_vx_info cfd5c000[#2030,90.24] @c591ba38 Jan 3 13:02:33 v2140 [10966.072937] (#e3c3,*2):c01198a7 clr_vx_info cfd5c000[#2030,91.24] @db9b0a38 Jan 3 13:02:33 v2140 [10966.072974] (#e3c2,*2):c01198a7 clr_vx_info cfd5c000[#2030,92.24] @d28d0a38 Jan 3 13:02:33 v2140 [10966.073010] (#e3c0,*2):c011bbf5 claim_vx_info cfd5c000[#2030,93.23] @d4f8c5a0 Jan 3 13:02:33 v2140 [10966.073047] (#e3bf,*2):c0119c1a set_vx_info cfd5c000[#2030,92.23] @d9867f9c Jan 3 13:02:33 v2140 [10966.073083] (#e3be,*2):c011aaf2 init_vx_info cfd5c000[#2030,91.23] @d4f8ca38 Jan 3 13:02:33 v2140 [10966.073120] (#e3bc,*2):c0119d24 clr_vx_info cfd5c000[#2030,92.24] @d9867f9c Jan 3 13:02:33 v2140 [10966.073156] (#e3a5,*2):c01369d1 release_vx_info cfd5c000[#2030,93.28] @db1495a0 Jan 3 13:02:33 v2140 [10966.073201] (#e3a4,*2):c0119d24 clr_vx_info cfd5c000[#2030,94.28] @dad38f9c Jan 3 13:02:33 v2140 [10966.073238] (#e3a3,*2):c01369d1 release_vx_info cfd5c000[#2030,94.29] @d06bc5a0 Jan 3 13:02:33 v2140 [10966.073283] (#e397,*2):c0119c1a set_vx_info cfd5c000[#2030,93.28] @dad38f9c Jan 3 13:02:33 v2140 [10966.073320] (#e395,*2):c0119d24 clr_vx_info cfd5c000[#2030,93.28] @dad38f9c Jan 3 13:02:33 v2140 [10966.073357] (#e38a,*2):c01369d1 release_vx_info cfd5c000[#2030,91.29] @d4e065a0 Jan 3 13:02:33 v2140 [10966.073403] (#e389,*2):c0119d24 clr_vx_info cfd5c000[#2030,92.29] @d3762f9c Jan 3 13:02:33 v2140 [10966.073438] (#e388,*2):c01369d1 release_vx_info cfd5c000[#2030,92.30] @c9f115a0 Jan 3 13:02:33 v2140 [10966.073484] (#e384,*2):c011bbf5 claim_vx_info cfd5c000[#2030,93.29] @d06bc5a0 Jan 3 13:02:33 v2140 [10966.073520] (#e383,*2):c0119c1a set_vx_info cfd5c000[#2030,92.29] @dc80ff9c Jan 3 13:02:33 v2140 [10966.073557] (#e382,*2):c011aaf2 init_vx_info cfd5c000[#2030,91.29] @d06bca38 Jan 3 13:02:33 v2140 [10966.073593] (#e381,*2):c0119d24 clr_vx_info cfd5c000[#2030,92.29] @dc80ff9c Jan 3 13:02:33 v2140 [10966.073626] EIP: [<c01b2498>] Jan 3 13:02:33 v2140 do_task_stat+0xa5/0x766 Jan 3 13:02:33 v2140 SS:ESP 0068:cc0e9dc0 Jan 3 13:02:33 v2140 [10966.073999] Jan 3 13:02:33 v2140 BUG: warning at arch/i386/kernel/smp.c:177/send_IPI_mask_bitmask() Jan 3 13:08:14 v2140 [11305.657067] BUG: spinlock lockup on CPU#2, pidof/23423, c06e4d60 Jan 3 13:13:50 v2140 [11641.244973] BUG: spinlock lockup on CPU#2, pidof/23423, c06e4d60 Jan 3 13:19:26 v2140 [11976.832879] BUG: spinlock lockup on CPU#2, pidof/23423, c06e4d60 Jan 3 13:25:02 v2140 [12312.420785] BUG: spinlock lockup on CPU#2, pidof/23423, c06e4d60 Jan 3 13:30:37 v2140 [12648.008692] BUG: spinlock lockup on CPU#2, pidof/23423, c06e4d60 Jan 3 13:36:13 v2140 [12983.596597] BUG: spinlock lockup on CPU#2, pidof/23423, c06e4d60 Jan 3 13:41:50 v2140 [13319.184504] BUG: spinlock lockup on CPU#2, pidof/23423, c06e4d60 Jan 3 13:47:26 v2140 [13654.772410] BUG: spinlock lockup on CPU#2, pidof/23423, c06e4d60 Jan 3 13:53:02 v2140 [13990.360316] BUG: spinlock lockup on CPU#2, pidof/23423, c06e4d60 Jan 3 13:58:38 v2140 [14325.948223] BUG: spinlock lockup on CPU#2, pidof/23423, c06e4d60 Jan 3 14:04:14 v2140 [14661.536128] BUG: spinlock lockup on CPU#2, pidof/23423, c06e4d60 Jan 3 14:09:50 v2140 [14997.124034] BUG: spinlock lockup on CPU#2, pidof/23423, c06e4d60
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