On Fri, 1 Jun 2007, Kay Sievers wrote:
> On Fri, 2007-06-01 at 10:51 -0400, Alan Stern wrote:
> > Greg and Kay:
> >
> > When I boot 2.6.22-rc3 plus gregkh-all-2.6.22-rc3.patch, with an FC6
> > system (which includes a no-doubt somewhat altered version of udev
> > 095), I get the follow message:
> >
> > [ 32.898870] kernel BUG at block/ll_rw_blk.c:3728!
> > [ 32.898922] invalid opcode: 0000 [#1]
> > [ 32.898971] PREEMPT SMP
> > [ 32.899088] Modules linked in: evdev e100 ohci_hcd ehci_hcd mii uhci_hcd usbcore
> > [ 32.899433] CPU: 0
> > [ 32.899435] EIP: 0060:[<c01c6770>] Not tainted VLI
> > [ 32.899437] EFLAGS: 00010246 (2.6.22-rc3 #1)
> > [ 32.899590] EIP is at put_io_context+0x12/0x7c
> > [ 32.899642] eax: cf0391e0 ebx: cf0391e0 ecx: cf1be000 edx: c01cccd4
> > [ 32.899698] esi: 00000010 edi: cf13b480 ebp: cf1bff4c esp: cf1bff44
> > [ 32.899753] ds: 007b es: 007b fs: 00d8 gs: 0000 ss: 0068
> > [ 32.899808] Process start_udev (pid: 948, ti=cf1be000 task=cf13b480 task.ti=cf1be000)
> > [ 32.899864] Stack: c02a6727 cf0391e0 cf1bff58 c01c9364 cf1bff80 cf1bff94 c012439e cf643478
> > [ 32.900242] cf1bffb0 c011979c 00000001 00000000 00000001 cf13b534 c010402c cf1bff80
> > [ 32.900620] cf1bff80 cf0d11c0 00000000 00575284 cf1bffa8 c0124436 00000000 00575284
> > [ 32.900997] Call Trace:
> > [ 32.901086] [<c0104fa1>] show_trace_log_lvl+0x1a/0x2f
> > [ 32.901177] [<c0105053>] show_stack_log_lvl+0x9d/0xa5
> > [ 32.901265] [<c0105248>] show_registers+0x1ed/0x32c
> > [ 32.901354] [<c0105497>] die+0x110/0x211
> > [ 32.901440] [<c0105622>] do_trap+0x8a/0xa3
> > [ 32.901527] [<c010598d>] do_invalid_op+0x88/0x92
> > [ 32.901614] [<c02a6aaa>] error_code+0x72/0x78
> > [ 32.901703] [<c01c9364>] exit_io_context+0x6d/0x70
> > [ 32.901792] [<c012439e>] do_exit+0x6bd/0x6e5
> > [ 32.901881] [<c0124436>] sys_exit_group+0x0/0x11
> > [ 32.901968] [<c0124445>] sys_exit_group+0xf/0x11
> > [ 32.902055] [<c0103f5a>] sysenter_past_esp+0x5f/0x99
> > [ 32.902144] =======================
> > [ 32.902192] Code: ff eb 14 89 90 c0 01 00 00 89 90 c4 01 00 00 89 88 90 00 00 00 31 c0 c9 c3 55 89 e5 53 83 ec 04 89 c3 85 c0 74 6b 83 38 00 75 04 <0f> 0b eb fe 90 ff 08 0f 94 c0 84 c0 74 58 b8 01 00 00 00 e8 86
> > [ 32.904543] EIP: [<c01c6770>] put_io_context+0x12/0x7c SS:ESP 0068:cf1bff44
> > [ 32.904718] Fixing recursive fault but reboot is needed!
> >
> > This doesn't happen under vanilla 2.6.22-rc3.
>
> > Is this udev's fault or is it a problem in the kernel? If it is udev's
> > fault, is it fixed in more recent versions?
>
> Maybe it's a bug in:
> driver/block-device.patch
> in Greg's tree. It converts blockdevs from raw kobjects to devices.
>
> Is this reproducible? It always happens?
Yes.
> Are you using initramfs?
Yes.
> What's the setting for CONFIG_SYSFS_DEPRECATED?
It's turned on.
> Care to comment out the block patch in the series file in Greg's tree
> and try if it works?
In fact the gregkh-all patch file I used was a few days old (I
downloaded it from a mirror on May 29) and it doesn't include the
block-device patch in the first place. Should I try the current
version?
Alan Stern
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