hello there,
On 28 October 2008, I post a thread titled
"[help]kernel crash and reboot during ssh " (
http://www.linuxquestions.org/questi...ng-ssh-679455/). In that thread, I did not describe the problem clearly. I obeyed the suggestions from so many warmhearted people. Here, I give more detailed information by adding environments description and error screenshots.
======================================================================
The environment described as follows:
I have two fedora core 5 desktops (kernel 2.6.15.i686), and
a kernel module named "netconsole" is loaded in the kernel
for exporting kernel log messages to the windows pc. That is,
the log message of 192.168.1.3 is exported to 192.168.1.2; and
the log message of 192.168.1.5 is exported to 192.168.1.6. In
the windows, I use netcat to capture the log messages:
nc -l -u -p 514 -vv
The configurations showed in the following picture (I'm sorry that I do not know how to post pictures here.)
http://hi.baidu.com/shawpinlee/blog/...daf51337d.html
(1)When I use "scp" to transfer a file named "v1.203.tar" (about 473k size)
from a linux desktop (192.168.1.3) to another linux desktop (192.168.1.5),
the kernel crashed again, just like the pictures shows.
I use putty to log into 192.168.1.3 and 192.168.1.5 from 192.168.1.2.
When I use scp to copy file named "v1.203.tar" from 192.168.1.2 to
192.168.1.5 through in putty, just like the pictures shows.
http://hi.baidu.com/shawpinlee/blog/...b510ffe7f.html
There is no transfer speed, and the log message in 192.168.1.2 exported from
192.168.1.3 shows that the scp is crashed. The putty connection link
between 192.168.1.2 and 192.168.1.5 is disconnected. The kernel in
192.168.1.3 is crashed. As the following picture shows:
http://hi.baidu.com/shawpinlee/blog/...e9e51467e.html
2) And when I use dmesg to display kernel printk messages in putty connected to 192.168.1.5.
There are two crash cases
a) dmesg display some messages, and then the kernel of 192.168.1.5 crashed,the following picture shows the netconsole message:
http://hi.baidu.com/shawpinlee/blog/...bc3ce797f.html
(b) after dmesg command typed, the kernel crashed immediately
http://hi.baidu.com/shawpinlee/blog/...5720eec78.html
message captured in 192.168.1.6,exported by netconsole from 192.168.1.5, shows as follows:
5> Unable to handle kernel paging request at virtual address 0d4202fd
<5> printing eip:
<5> c02e381b
<5> *pde = 00000000
<5> Oops: 0000 [#1]
<5> last sysfs file: /class/net/lo/ifindex
<5> Modules linked in: iphdrcomp netconsole bridge autofs4 sunrpc video button battery ac lp parport_pc parport nvram uhci_hcd ehci_hcd e1000 i6300esb i2c_i801 i2c_core ext3 jbd ata_piix libata sd_mod scsi_mod
<5> CPU: 0
<5> EIP: 0060:[<c02e381b>] Not tainted VLI
<5> EFLAGS: 00010013 (2.6.15-prep #4)
<5> EIP is at do_page_fault+0x8a/0x51d
<5> eax: c03db000 ebx: 0d420285 ecx: c03db084 edx: c03db0ac
<5> esi: 00000000 edi: c02e3791 ebp: 0d420285 esp: c03db074
<5> ds: 007b es: 007b ss: 0068
<5> Process dmesg (pid: 2104, threadinfo=c03da000 task=c1994000)
<5> Stack: <0>00000000 c03db0ac 00000000 0d4202fd c03db0ac c02fea24 00000000 0000000e
<5> 0000000b 0d420285 00000000 c02e3791 0d420285 c010367b 0d420285 c03db0f0
<5> c03db118 00000000 c02e3791 0d420285 c03db000 0000007b 0000007b ffffffff
<5> Call Trace:
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c010367b>] error_code+0x4f/0x54
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c011007b>] acpi_copy_wakeup_routine+0x1b/0x9c
<5> [<c02e381b>] do_page_fault+0x8a/0x51d [<c02e3791>] do_page_fault+0x0/0x51d
<5> [<c010367b>] error_code+0x4f/0x54 [<c02e3791>] do_page_fault+0x0/0x51d
<5> [<c02e381b>] do_page_fault+0x8a/0x51d [<c02e3791>] do_page_fault+0x0/0x51d
<5> [<c010367b>] error_code+0x4f/0x54 [<c02e3791>] do_page_fault+0x0/0x51d
<5> [<c02e381b>] do_page_fault+0x8a/0x51d [<c02e3791>] do_page_fault+0x0/0x51d
<5> [<c010367b>] error_code+0x4f/0x54 [<c0117878>] account_system_time+0x8/0x8b
<5> [<c0121b06>] update_process_times+0x30/0x57 [<c0105c6e>] timer_interrupt+0x53/0x8d
<5> [<c0137d2e>] handle_IRQ_event+0x23/0x4c [<c0137dd1>] __do_IRQ+0x7a/0xcd
<5> [<c0104bde>] do_IRQ+0x5c/0x77 <0> =======================
<5> [<c02e465f>] __kprobes_text_end+0x0/0x30e
<5> [<c02e3d1c>] aggr_break_handler+0x0/0x2a <0> =======================
<5> Unable to handle kernel paging request at virtual address ffe3facd
<5> printing eip:
<5> c0103b8d
<5> *pde = 00002067
<5> Oops: 0000 [#2]
<5> last sysfs file: /class/net/lo/ifindex
<5> Modules linked in: iphdrcomp netconsole bridge autofs4 sunrpc video button battery ac lp parport_pc parport nvram uhci_hcd ehci_hcd e1000 i6300esb i2c_i801 i2c_core ext3 jbd ata_piix libata sd_mod scsi_mod
<5> CPU: 0
<5> EIP: 0060:[<c0103b8d>] Not tainted VLI
<5> EFLAGS: 00010083 (2.6.15-prep #4)
<5> EIP is at show_trace_log_lvl+0x75/0xa9
<5> eax: ffe3fffd ebx: 0006c743 ecx: ffffffff edx: c02f6a09
<5> esi: ffe3facd edi: ffe3f000 ebp: c02f6a09 esp: c03daf4c
<5> ds: 007b es: 007b ss: 0068
<5> Process dmesg (pid: 2104, threadinfo=c03da000 task=c1994000)
<5> Stack: <0>c03db0d7 00000018 c02f6a09 00000000 c0103c66 c02f68ba c02f6a09 c0321f45
<5> c03db074 00000002 00010013 c03db040 c03db074 c0103dd0 c02f69fd 00000001
<5> 00680001 0d420285 00030001 c03db040 00000000 c0103f88 c02f6aa3 c04196a0
<5> Call Trace:
<5> [<c0103c66>] show_stack_log_lvl+0xa5/0xad
<5> [<c0103dd0>] show_registers+0x10b/0x17a [<c0103f88>] die+0x149/0x1e3
<5> [<c02e3791>] do_page_fault+0x0/0x51d [<c02e3791>] do_page_fault+0x0/0x51d
<5> [<c02e3b06>] do_page_fault+0x375/0x51d [<c02e381b>] do_page_fault+0x8a/0x51d
<5> =======================
<5> [<c0116e55>] __wake_up+0x2a/0x3d [<c0116cd3>] default_wake_function+0x0/0xc
<5> [<c0200803>] tty_write+0x158/0x1e1 [<c02031ba>] write_chan+0x0/0x2a8
<5> [<c02006ab>] tty_write+0x0/0x1e1 [<c01523d7>] vfs_write+0xa1/0x140
<5> [<c01528df>] sys_write+0x3c/0x63 [<c0102bc1>] syscall_call+0x7/0xb
<5> Code: 05 68 45 1f 32 c0 e8 96 71 01 00 59 80 3d 54 80 3d c0 00 0f 94 05 54 80 3d c0 83 c6 04 39 fe 76 32 8d 87 fd 0f 00 00 39 c6 73 28 <8b> 1e 89 d8 e8 f6 49 02 00 85 c0 75 90 eb e0 89 d6 55 e8 5f 71
Can anyone help me to explain this?
Thanks.
