Messages in this thread | | | Subject | Memory corruption & SCSI in 2.6.15 | From | Benjamin Herrenschmidt <> | Date | Mon, 12 Dec 2005 18:13:26 +1100 |
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Hi !
Current -git as of today (that is 2.6.15-rc5 + the batch of fixes Linus pulled after his return) was dying in weird ways for me on POWER5. I had the good idea to activate slab debugging, and I now see it detecting slab corruption as soon as the IPR driver initializes.
Since I remember seeing a discussion somewhere on a list between Brian King and Jens Axboe about use-after-free problems in SCSI and possible other niceties of that sort, I though it might be related...
Anything I can do to help track this down ?
ipr: IBM Power RAID SCSI Device Driver version: 2.1.0 (October 31, 2005) ipr 0000:c0:01.0: Found IOA with IRQ: 99 ipr 0000:c0:01.0: Starting IOA initialization sequence. ipr 0000:c0:01.0: Adapter firmware version: 020A004E ipr 0000:c0:01.0: IOA initialized. scsi0 : IBM 570B Storage Adapter Slab corruption: start=c000000070de39a0, len=728 Redzone: 0x5a2cf071/0x5a2cf071. Last user: [<c0000000002297c4>](.blk_cleanup_queue+0xe4/0x170) 1d0: 6b 6b 6b 6b 6b 6b 6b 6b 00 00 00 00 00 00 00 00 2b0: 6b 6b 6b 6a 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Prev obj: start=c000000070de36b0, len=728 Redzone: 0x5a2cf071/0x5a2cf071. Last user: [<0000000000000000>](0x0) 000: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 010: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Next obj: start=c000000070de3c90, len=728 Redzone: 0x170fc2a5/0x170fc2a5. Last user: [<c000000000227b00>](.blk_alloc_queue_node+0x30/0x90)
Ben.
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