Messages in this thread | | | From | Badari Pulavarty <> | Subject | Re: Bug in last night's bk test | Date | Mon, 23 Sep 2002 15:52:23 -0700 (PDT) |
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> > Paul Larson wrote: > > > > The automated nightly testing turned up a bug on one of the test > > machines last night. The system that had the problem was running ltp > > and was a 2-way PII-550, 2GB ram, ext2. Here is the ksymoops dump: > > > > ksymoops 2.4.5 on i686 2.4.18. Options used > > -V (default) > > -K (specified) > > -L (specified) > > -O (specified) > > -m System.map (specified) > > > > kernel BUG at ll_rw_blk.c:1802! > > Ah, yes. > > The direct-io code will build requests which are larger than > the ips driver is prepared to accept, and the BIO layer correctly > BUGs out over it. > > We need to convert direct-io to use the bio_add_page() facility > which Jens has recently added. > > Until that's done you'll need to set BIO_MAX_PAGES to 16 in > include/linux/bio.h >
I am little confused here. I thought IPS driver can handle 64K IO. Infact, IPS_MAX_SG is set to 17. So it should be able to handle 68K. I have been told that it can handle more than that.. but for some reason it was set to 17.
Paul, what kernel are u running ? 2.5.38 ?
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