On 05/06/07, Arnaldo Carvalho de Melo <acme@xxxxxxxxxxxxxxxxxx> wrote:
On 6/5/07, Patrick Andrieux <patrick.andrieux@xxxxxxxxx> wrote: > Hi, > > I have a segfault when inserting dccp_probe module on Dave Miller's > tree *without* Ian's patches. I got it using this cmd line : Question, does it also segfaults _with_ Ian's patches?
I don't know because I didn't try with Ian's patches on this kernel. But I tried on 2.6.20.12 kernel with Ian's patches, and dccp_probe works.
> do_page_fault+0x436/0x509 > Jun 5 12:26:55 dccpServer kernel: [ 1027.751869] [<c031fd4a>] > error_code+0x6a/0x70 > Jun 5 12:26:55 dccpServer kernel: [ 1027.751873] [<c0321921>] > __register_kprobe+0x23a/0x294 > Jun 5 12:26:55 dccpServer kernel: [ 1027.751876] [<c0321994>] > register_jprobe+0x19/0x1b I ask this because it is segfaulting at dccpprobe_init time, when it is registering the jprobe. To me it looks like something changed in the jprobes infrastructure and we are seeing a fallout from that. But I haven't investigated this more than looking at this backtrace.
I'll try to patch davem's tree and I'll get back to you.
> Jun 5 12:26:55 dccpServer kernel: [ 1027.751880] [<f8a27076>] > dccpprobe_init+0x76/0xb4 [dccp_probe] > Jun 5 12:26:55 dccpServer kernel: [ 1027.751885] [<c0137d1f>] > sys_init_module+0x12d5/0x1415 > Jun 5 12:26:55 dccpServer kernel: [ 1027.751890 ] [<c0103db2>] > sysenter_past_esp+0x5f/0x99 > Jun 5 12:26:55 dccpServer kernel: [ 1027.751893] ======================= > > Let me know if you need anything else. > > rgds, > Patrick.
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