On Sat, 2007-11-03 at 21:06 +0100, Michael Buesch wrote: > On Saturday 03 November 2007 20:58:09 Luis R. Rodriguez wrote: > > I was using SLAB and ran into other strange oops, as the one below, > > but after switching to SLUB, after Michael Buesch's suggestion that > > one went away... The lockdep segfault is still present, however. > > Who is responsible for slab btw? > I mean, someone should be interested in getting this bug fixed. :) > When using slab I see random corruptions. I think related to rmmod, but > I'm not sure. I don't see this with slub. Pekka and Christoph do most SLAB work. the snipped oops: > ----- oops with slab, not reproducible with slub: > > mcgrof@pogo:~$ sudo rmmod tg3 > mcgrof@pogo:~$ sudo rmmod sr_mod > > *** dmesg -c > > ACPI: PCI interrupt for device 0000:02:00.0 disabled > BUG: unable to handle kernel paging request at virtual address f88a4a05 > printing eip: f88a4a05 *pde = 02000067 *pte = 00000000 > Oops: 0000 [#1] > Modules linked in: sr_mod uinput thinkpad_acpi hwmon backlight nvram > ipv6 acpi_cpufreq cpufreq_userspace cpufreq_powersave cpufreq_ondemand > cpufreq_conservative dock arc4 ecb blkcipher cryptomgr crypto_algapi > rc80211_simple ath5k mac80211 cfg80211 pcmcia crc32 snd_hda_intel > snd_pcm_oss snd_mixer_oss snd_pcm snd_page_alloc snd_hwdep snd_seq_oss > ipw2200 snd_seq_midi_event ieee80211 ieee80211_crypt sg ehci_hcd > uhci_hcd yenta_socket rsrc_nonstatic snd_seq snd_timer snd_seq_device > firmware_class cdrom pcmcia_core usbcore evdev rng_core rtc snd > soundcore > > Pid: 2908, comm: modprobe Not tainted (2.6.24-rc1 #18) > EIP: 0060:[<f88a4a05>] EFLAGS: 00010086 CPU: 0 > EIP is at 0xf88a4a05 > EAX: c20b75c8 EBX: c2f86f38 ECX: f88a4a05 EDX: c2f86f38 > ESI: c20b75c8 EDI: c2f89c00 EBP: c3897bfc ESP: c3897be0 > DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068 > Process modprobe (pid: 2908, ti=c3896000 task=c3935150 task.ti=c3896000) > Stack: c01b2afc c2f82d98 c3897bf4 c01ba8b6 c2f86f38 c20b75c8 c2f82c00 c3897c24 > c02186dd c2f86f38 c3897c24 c01b54c0 c20b75c8 00000001 c20b75c8 c2f86f38 > c20b75c8 c3897c30 c01b54ed 00000001 c3897c54 c01b556c 00000001 c3897cd4 > Call Trace: > [<c0104cec>] show_trace_log_lvl+0x1a/0x2f > [<c0104d9e>] show_stack_log_lvl+0x9d/0xa5 > [<c0104e53>] show_registers+0xad/0x17c > [<c0105017>] die+0xf5/0x1c6 > [<c0112715>] do_page_fault+0x450/0x537 > [<c02a835a>] error_code+0x6a/0x70 > [<c02186dd>] scsi_request_fn+0x5f/0x2ec > [<c01b54ed>] __generic_unplug_device+0x20/0x23 > [<c01b556c>] blk_execute_rq_nowait+0x7c/0x8f > [<c01b69e5>] blk_execute_rq+0xb1/0xcf > [<c0217f53>] scsi_execute+0xc4/0xd7 > [<c0218014>] scsi_execute_req+0xae/0xcb > [<f885f571>] sr_probe+0x1d5/0x557 [sr_mod] > [<c020fd33>] driver_probe_device+0xe8/0x168 > [<c020fec9>] __driver_attach+0x6a/0xa1 > [<c020f271>] bus_for_each_dev+0x36/0x5b > [<c020fb7f>] driver_attach+0x19/0x1b > [<c020f556>] bus_add_driver+0x73/0x1aa > [<c02100a5>] driver_register+0x67/0x6c > [<c021b4f8>] scsi_register_driver+0xf/0x11 > [<f8863023>] init_sr+0x23/0x3d [sr_mod] > [<c013a461>] sys_init_module+0x1142/0x1262 > [<c0103d7e>] sysenter_past_esp+0x5f/0xa5 > ======================= > Code: Bad EIP value. > EIP: [<f88a4a05>] 0xf88a4a05 SS:ESP 0068:c3897be0 > - To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
