A nasty 2.6.15 report from one of our Fedora users. Dave > then when it got to map my USB drive: > SCSI device sdb: 321672960 512-byte hdwr sectors (164697 MB) > slab error in cache_free_debugcheck(): cache `sgpool-8': double free, or > memory outside object was overwritten > [<c0153593>] cache_free_debugcheck+0x1ab/0x22f [<c014d3c2>] > mempool_free+0x3a/0x73 > [<c01540e2>] kmem_cache_free+0x2a/0x69 [<c014d3c2>] > mempool_free+0x3a/0x73 > [<f8862c8b>] scsi_io_completion+0x207/0x4d2 [scsi_mod] [<f885dcad>] > scsi_finish_command+0x82/0xd0 [scsi_mod] > [<f885db8e>] scsi_softirq+0xc0/0x137 [scsi_mod] [<c012a152>] > __do_softirq+0x72/0xdc > [<c01063d3>] do_softirq+0x4b/0x4f > ======================= > [<c01062b5>] do_IRQ+0x55/0x86 [<c0104aca>] common_interrupt+0x1a/0x20 > [<c010201a>] default_idle+0x0/0x55 [<c0102046>] default_idle+0x2c/0x55 > [<c01020ef>] cpu_idle+0x6c/0xa7 > f79a41d0: redzone 1: 0x170fc2a5, redzone 2: 0xc014d2d1. > slab error in cache_free_debugcheck(): cache `sgpool-8': double free, or > memory outside object was overwritten > [<c0153593>] cache_free_debugcheck+0x1ab/0x22f [<c014d3c2>] > mempool_free+0x3a/0x73 > [<c01540e2>] kmem_cache_free+0x2a/0x69 [<c014d3c2>] > mempool_free+0x3a/0x73 > [<f8862c8b>] scsi_io_completion+0x207/0x4d2 [scsi_mod] [<f885dcad>] > scsi_finish_command+0x82/0xd0 [scsi_mod] > [<f885db8e>] scsi_softirq+0xc0/0x137 [scsi_mod] [<c012a152>] > __do_softirq+0x72/0xdc > [<c01063d3>] do_softirq+0x4b/0x4f > ======================= > [<c01062b5>] do_IRQ+0x55/0x86 [<c0104aca>] common_interrupt+0x1a/0x20 > [<c010201a>] default_idle+0x0/0x55 [<c0102046>] default_idle+0x2c/0x55 > [<c01020ef>] cpu_idle+0x6c/0xa7 > f79a41d0: redzone 1: 0x170fc2a5, redzone 2: 0xc014d2d1. > sdb: got wrong page > sdb: assuming drive cache: write through > SCSI device sdb: 321672960 512-byte hdwr sectors (164697 MB) > slab error in cache_free_debugcheck(): cache `sgpool-8': double free, or > memory outside object was overwritten > [<c0153593>] cache_free_debugcheck+0x1ab/0x22f [<c014d3c2>] > mempool_free+0x3a/0x73 > [<c01540e2>] kmem_cache_free+0x2a/0x69 [<c014d3c2>] > mempool_free+0x3a/0x73 > [<f8862c8b>] scsi_io_completion+0x207/0x4d2 [scsi_mod] [<f885dcad>] > scsi_finish_command+0x82/0xd0 [scsi_mod] > [<f885db8e>] scsi_softirq+0xc0/0x137 [scsi_mod] [<c012a152>] > __do_softirq+0x72/0xdc > [<c01063d3>] do_softirq+0x4b/0x4f > ======================= > [<c01062b5>] do_IRQ+0x55/0x86 [<c016a311>] filp_close+0x3e/0x62 > [<c0104aca>] common_interrupt+0x1a/0x20 > f79a41d0: redzone 1: 0x170fc2a5, redzone 2: 0xc014d2d1. > slab error in cache_free_debugcheck(): cache `sgpool-8': double free, or > memory outside object was overwritten > [<c0153593>] cache_free_debugcheck+0x1ab/0x22f [<c014d3c2>] > mempool_free+0x3a/0x73 > [<c01540e2>] kmem_cache_free+0x2a/0x69 [<c014d3c2>] > mempool_free+0x3a/0x73 > [<f8862c8b>] scsi_io_completion+0x207/0x4d2 [scsi_mod] [<f885dcad>] > scsi_finish_command+0x82/0xd0 [scsi_mod] > [<f885db8e>] scsi_softirq+0xc0/0x137 [scsi_mod] [<c012a152>] > __do_softirq+0x72/0xdc > [<c01063d3>] do_softirq+0x4b/0x4f > ======================= > [<c01062b5>] do_IRQ+0x55/0x86 [<c0104aca>] common_interrupt+0x1a/0x20 > f79a41d0: redzone 1: 0x170fc2a5, redzone 2: 0xc014d2d1. > sdb: got wrong page > sdb: assuming drive cache: write through > sdb: sdb1 sdb2 sdb4 < sdb5 sdb6 sdb7 sdb8 sdb9 > > sd 3:0:0:0: Attached scsi disk sdb - : send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html