Messages in this thread |  | | Date | Tue, 19 Mar 2002 20:35:53 +0100 (CET) | From | willy tarreau <> | Subject | Re: Linux 2.4.19pre3-ac2 |
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Hi !
Well, I discovered today that reading /proc/bus/pnp/0e oopsed on me on 2.4.19p2 with the 2.4.17 pnpbios patch (+lots of other patches that don't help to make easy reports). Didn't try without pnpbios yet. lspnp -v triggers it very easily. 0e is the PS2 port (PNP0f13). I had this on at least two P3's with different hardware and bioses.
So I tried plain 2.4.19-pre3-ac2, and now it reboots immediately. I've tried 3 versions down to 2.4.10-ac12 which segfaults too. Other pnp entries can be read perfectly (can provide dump if it helps).
I will send the ksymoops report from 2.4.19p2 with 2.4.17 pnpbios when I get home (because I'd like to get a real email client - elm). At least at the moment, I can resume the end of the report to this :
>>EIP; 0000879a Before first symbol <===== c014daf8 <get_new_inode+48/1a4> c014dbca <get_new_inode+11a/1a4> c021aa2c <__pnp_bios_get_dev_node+110/16c> c0120000 <sys_capset+238/288> c0120018 <sys_capset+250/288> c021aa9e <pnp_bios_get_dev_node+16/34> c021bbe0 <proc_read_node+44/88> c0156f0a <proc_file_read+f2/1bc> c0139326 <sys_read+8e/110> c010744a <tracesys+1e/22>
Please note that it doesn't really affect me because I don't need pnpbios on these hosts, but some people may be concerned about the security risk since the entry is world-readable. I'm just always trying to build better kernels ;-)
Hope this helps. I'll be able to do more tests if other people cannot reproduce.
Cheers, Willy
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