Messages in this thread |  | | | Date | Tue, 16 Mar 2004 22:56:59 +0100 | | From | Matthias Andree <> | | Subject | Re: 2.6.5-rc1 SCSI + st regressions (was: Linux 2.6.5-rc1) |
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On Tue, 16 Mar 2004, Matthew Wilcox wrote:
> On Tue, Mar 16, 2004 at 10:12:03PM +0100, Matthias Andree wrote: > > I have some SCSI troubles with 2.6.5-rc1 (from BK) that 2.6.4 didn't > > have. > > > > Modprobe, loading the st driver, tries a NULL pointer dereference in > > kernel space and my 2nd tape drive isn't found: st1 is not shown. cat > > /proc/scsi/scsi (typed after the attempted zero page dereference) hangs > > in rwsem_down_read_failed with process state D. > > I notice you're using the sym2 driver. Could you try backing out the > changes made to it in 2.6.5-rc1, just to be sure we're looking at an st > problem, not a sym2 problem?
I've backed out the 2004-03-12 ChangeSet, willy@debian.org|ChangeSet|20040312212827|57687 and rebooted, result (does that make sense? Was that a complete back-out?):
... sym0: <875> rev 0x26 at pci 0000:00:0d.0 irq 16 sym0: Tekram NVRAM, ID 7, Fast-20, SE, parity checking sym0: SCSI BUS has been reset. scsi0 : sym-2.1.18f Vendor: FUJITSU Model: MAH3182MP Rev: 0114 Type: Direct-Access ANSI SCSI revision: 04 sym0:1:0: tagged command queuing enabled, command queue depth 32. Vendor: PLEXTOR Model: CD-ROM PX-32TS Rev: 1.02 Type: CD-ROM ANSI SCSI revision: 02 Vendor: TANDBERG Model: TDC 4222 Rev: =07: Type: Sequential-Access ANSI SCSI revision: 02 Vendor: TANDBERG Model: SLR6 Rev: 0404 Type: Sequential-Access ANSI SCSI revision: 02 DC390: 0 adapters found libata version 1.01 loaded. sym0:1: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16) SCSI device sda: 35701260 512-byte hdwr sectors (18279 MB) SCSI device sda: drive cache: write through sda: sda1 sda2 sda3 < sda5 > Attached scsi disk sda at scsi0, channel 0, id 1, lun 0 ... Attached scsi generic sg0 at scsi0, channel 0, id 1, lun 0, type 0 Attached scsi generic sg1 at scsi0, channel 0, id 2, lun 0, type 5 Attached scsi generic sg2 at scsi0, channel 0, id 6, lun 0, type 1 Attached scsi generic sg3 at scsi0, channel 0, id 8, lun 0, type 1 sym0:2: FAST-20 SCSI 20.0 MB/s ST (50.0 ns, offset 15) sr0: scsi-1 drive Attached scsi CD-ROM sr0 at scsi0, channel 0, id 2, lun 0 st: Version 20040226, fixed bufsize 32768, s/g segs 256 Unable to handle kernel NULL pointer dereference at virtual address 0000002e printing eip: d1ba00fc *pde = 00000000 Oops: 0002 [#1] CPU: 0 EIP: 0060:[<d1ba00fc>] Not tainted EFLAGS: 00010282 (2.6.5-rc1) EIP is at st_probe+0x7dc/0x99f [st] eax: cd4d824c ebx: ffffffea ecx: 00000000 edx: 0000000a esi: 00000004 edi: 00000000 ebp: c135fdbc esp: c135fd34 ds: 007b es: 007b ss: 0068 Process modprobe (pid: 1304, threadinfo=c135e000 task=c1384620) Stack: ccab5cc0 00900000 cfa3597c d1ba0628 ccbaf6c4 00000000 c135fd68 c135fd68 00000000 cd4d824c 00000000 cd4d824c cc6d0c80 c135fd84 00000000 cd4d8200 cd979980 00000008 cdb39000 00000000 d1ba2bf0 00000000 00000000 cd4d824c Call Trace: [<c027eaeb>] bus_match+0x3b/0x70 [<c027ed00>] driver_attach+0x50/0x90 [<c027eddb>] bus_add_driver+0x9b/0xc0 [<c027f3c1>] driver_register+0x31/0x40 [<d19e50b6>] init_st+0xb6/0x155 [st] [<c0131200>] sys_init_module+0x130/0x1670 [<c01bd5c1>] journal_stop+0x171/0x210 [<c01af4b7>] ext3_mark_inode_dirty+0x47/0x60 [<c0157110>] cdev_alloc+0x0/0x60 [<c0144c55>] do_mmap_pgoff+0x365/0x6c0 [<c014cda7>] filp_close+0x57/0x90 [<c014ce2f>] sys_close+0x4f/0x60 [<c01070ff>] syscall_call+0x7/0xb Code: 89 43 44 89 1c 24 c7 44 24 04 5c 2a ba d1 e8 f1 fb 6d ee c7 <6>sym0:6: FAST-5 SCSI 4.8 MB/s ST (208.0 ns, offset 8) st0: Block limits 1 - 16777215 bytes.
-- Matthias Andree
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