Messages in this thread | | | Date | Mon, 21 Sep 1998 13:58:16 -0400 (EDT) | From | Camm Maguire <> | Subject | 2.0.35 recurrent datagram oops |
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Greetings! I've written about this before, and have had this bug in many, if not all 2.0.3x kernels, including the latest stable kernel, 2.0.35.
The process pcqetix1 just sleeps in a tight loop doing revfrom followed by a write to a circular shared memory buffer. This oops occurs in the same place within a week:
----------------------------------------------------------------------------- Sep 15 06:30:02 intech12 kernel: Unable to handle kernel NULL pointer dereference at virtual address c0000008 Sep 15 06:30:02 intech12 kernel: current->tss.cr3 = 00943000, %cr3 = 00943000 Sep 15 06:30:02 intech12 kernel: *pde = 00102067 Sep 15 06:30:02 intech12 kernel: *pte = 00000000 Sep 15 06:30:02 intech12 kernel: Oops: 0000 Sep 15 06:30:02 intech12 kernel: CPU: 0 Sep 15 06:30:02 intech12 kernel: EIP: 0010:[memcpy_toiovec+82/144] Sep 15 06:30:02 intech12 kernel: EFLAGS: 00010212 Sep 15 06:30:02 intech12 kernel: eax: 00001004 ebx: 00000190 ecx: 00000064 edx: bfffeae0 Sep 15 06:30:02 intech12 kernel: esi: 00000008 edi: bfffeae0 ebp: 00ea9edc esp: 00ea9e28 Sep 15 06:30:02 intech12 kernel: ds: 0018 es: 002b fs: 002b gs: 002b ss: 0018 Sep 15 06:30:02 intech12 kernel: Process pcqetix1 (pid: 4490, process nr: 25, stackpage=00ea9000) Sep 15 06:30:02 intech12 kernel: Stack: 00040018 00000190 00ea9ee4 00044018 00ea9f64 00000190 0013bceb 00ea9edc Sep 15 06:30:02 intech12 kernel: 00000008 00000190 0014ed91 00f0c5e4 00000008 00ea9edc 00000190 00044018 Sep 15 06:30:02 intech12 kernel: 00ea9ed8 00000000 00000000 00f0c5e4 0064c000 00153416 00044018 00ea9f64 Sep 15 06:30:02 intech12 kernel: Call Trace: [skb_copy_datagram_iovec+27/32] [udp_recvmsg+113/192] [inet_recvmsg+118/144] [sys_recvfrom+327/400] [udp_rcv+955/976] [ip_rcv+927/1248] [sys_socketcall+643/848] Sep 15 06:30:02 intech12 kernel: [system_call+85/124] Sep 15 06:30:02 intech12 kernel: Code: f3 a5 83 e3 03 89 d9 f3 a4 07 8b 5c 24 10 01 5c 24 1c 29 5c -----------------------------------------------------------------------------
Any help most appreciated!
-- Camm Maguire camm@enhanced.com ========================================================================== "The earth is but one country, and mankind its citizens." -- Baha'u'llah
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