On Fri, Feb 10, Olaf Hering wrote:
> On Fri, Feb 10, James Bottomley wrote:
>
> > On Fri, 2006-02-10 at 11:11 +0100, Olaf Hering wrote:
> > > 550 reboots without crash, with this patch reverted.
> > > Will try the execute_in_process_context thing now.
> >
> > I wouldn't bother ... because of the structure, the
> > execute_in_process_context() patch must have the same bug, but the
> > context check will make it much more difficult to hit.
>
> Ok, will revert to the -git7 status and poke around once it crashes.
this is struct scsi_target in scsi_target_reap_work()
(gdb) p st
$1 = {starget_sdev_user = 0x0, siblings = {next = 0xc0000000024caca8, prev = 0xc0000000024caca8}, devices = {next = 0xc0000000024cacb8, prev = 0xc0000000024cacb8},
dev = {klist_children = {k_lock = {raw_lock = {slock = 0}, magic = 3735899821, owner_cpu = 4294967295, owner = 0xffffffffffffffff}, k_list = {
next = 0xc0000000024cace0, prev = 0xc0000000024cace0}, get = 0xc000000000614f68, put = 0xc000000000614f38}, knode_parent = {n_klist = 0x0, n_node = {
next = 0x0, prev = 0x0}, n_ref = {refcount = {counter = 0}}, n_removed = {done = 0, wait = {lock = {raw_lock = {slock = 0}, magic = 0, owner_cpu = 0,
owner = 0x0}, task_list = {next = 0x0, prev = 0x0}}}}, knode_driver = {n_klist = 0x0, n_node = {next = 0x0, prev = 0x0}, n_ref = {refcount = {
counter = 0}}, n_removed = {done = 0, wait = {lock = {raw_lock = {slock = 0}, magic = 0, owner_cpu = 0, owner = 0x0}, task_list = {next = 0x0,
prev = 0x0}}}}, knode_bus = {n_klist = 0x0, n_node = {next = 0x0, prev = 0x0}, n_ref = {refcount = {counter = 0}}, n_removed = {done = 0, wait = {
lock = {raw_lock = {slock = 0}, magic = 0, owner_cpu = 0, owner = 0x0}, task_list = {next = 0x0, prev = 0x0}}}}, parent = 0xc00000000303a1a8, kobj = {
k_name = 0xc0000000024cae00 <Address 0xc0000000024cae00 out of bounds>, name = "target0:255:100\000\000\000\000", kref = {refcount = {counter = 6}}, entry = {
next = 0xc0000000024cae18, prev = 0xc0000000024cae18}, parent = 0xc00000000303a2d8, kset = 0xc000000000500c88, ktype = 0x0, dentry = 0x0},
bus_id = "target0:255:100\000\000\000\000", uevent_attr = {attr = {name = 0x0, owner = 0x0, mode = 0}, show = 0, store = 0}, sem = {count = {counter = 1},
wait = {lock = {raw_lock = {slock = 0}, magic = 3735899821, owner_cpu = 4294967295, owner = 0xffffffffffffffff}, task_list = {next = 0xc0000000024caea8,
prev = 0xc0000000024caea8}}}, bus = 0x0, driver = 0x0, driver_data = 0x0, platform_data = 0x0, firmware_data = 0x0, power = {power_state = {event = 0},
can_wakeup = 0}, dma_mask = 0x0, coherent_dma_mask = 0, dma_pools = {next = 0xc0000000024caef8, prev = 0xc0000000024caef8}, dma_mem = 0x0,
release = 0xd0000000002190c0}, reap_ref = 0, channel = 255, id = 100, create = 0, scsi_level = 0 '\0', hostdata = 0x0, starget_data = 0x1ffffffec60}
(gdb) p/x st
$2 = {starget_sdev_user = 0x0, siblings = {next = 0xc0000000024caca8, prev = 0xc0000000024caca8}, devices = {next = 0xc0000000024cacb8, prev = 0xc0000000024cacb8},
dev = {klist_children = {k_lock = {raw_lock = {slock = 0x0}, magic = 0xdead4ead, owner_cpu = 0xffffffff, owner = 0xffffffffffffffff}, k_list = {
next = 0xc0000000024cace0, prev = 0xc0000000024cace0}, get = 0xc000000000614f68, put = 0xc000000000614f38}, knode_parent = {n_klist = 0x0, n_node = {
next = 0x0, prev = 0x0}, n_ref = {refcount = {counter = 0x0}}, n_removed = {done = 0x0, wait = {lock = {raw_lock = {slock = 0x0}, magic = 0x0,
owner_cpu = 0x0, owner = 0x0}, task_list = {next = 0x0, prev = 0x0}}}}, knode_driver = {n_klist = 0x0, n_node = {next = 0x0, prev = 0x0}, n_ref = {
refcount = {counter = 0x0}}, n_removed = {done = 0x0, wait = {lock = {raw_lock = {slock = 0x0}, magic = 0x0, owner_cpu = 0x0, owner = 0x0}, task_list = {
next = 0x0, prev = 0x0}}}}, knode_bus = {n_klist = 0x0, n_node = {next = 0x0, prev = 0x0}, n_ref = {refcount = {counter = 0x0}}, n_removed = {
done = 0x0, wait = {lock = {raw_lock = {slock = 0x0}, magic = 0x0, owner_cpu = 0x0, owner = 0x0}, task_list = {next = 0x0, prev = 0x0}}}},
parent = 0xc00000000303a1a8, kobj = {k_name = 0xc0000000024cae00, name = {0x74, 0x61, 0x72, 0x67, 0x65, 0x74, 0x30, 0x3a, 0x32, 0x35, 0x35, 0x3a, 0x31, 0x30,
0x30, 0x0, 0x0, 0x0, 0x0, 0x0}, kref = {refcount = {counter = 0x6}}, entry = {next = 0xc0000000024cae18, prev = 0xc0000000024cae18},
parent = 0xc00000000303a2d8, kset = 0xc000000000500c88, ktype = 0x0, dentry = 0x0}, bus_id = {0x74, 0x61, 0x72, 0x67, 0x65, 0x74, 0x30, 0x3a, 0x32, 0x35,
0x35, 0x3a, 0x31, 0x30, 0x30, 0x0, 0x0, 0x0, 0x0, 0x0}, uevent_attr = {attr = {name = 0x0, owner = 0x0, mode = 0x0}, show = 0x0, store = 0x0}, sem = {
count = {counter = 0x1}, wait = {lock = {raw_lock = {slock = 0x0}, magic = 0xdead4ead, owner_cpu = 0xffffffff, owner = 0xffffffffffffffff}, task_list = {
next = 0xc0000000024caea8, prev = 0xc0000000024caea8}}}, bus = 0x0, driver = 0x0, driver_data = 0x0, platform_data = 0x0, firmware_data = 0x0, power = {
power_state = {event = 0x0}, can_wakeup = 0x0}, dma_mask = 0x0, coherent_dma_mask = 0x0, dma_pools = {next = 0xc0000000024caef8, prev = 0xc0000000024caef8},
dma_mem = 0x0, release = 0xd0000000002190c0}, reap_ref = 0x0, channel = 0xff, id = 0x64, create = 0x0, scsi_level = 0x0, hostdata = 0x0,
starget_data = 0x1ffffffec60}
1:mon> d c0000000024caca0 666
c0000000024caca0 0000000000000000 c0000000024caca8 |.............L..|
c0000000024cacb0 c0000000024caca8 c0000000024cacb8 |.....L.......L..|
c0000000024cacc0 c0000000024cacb8 00000000dead4ead |.....L........N.|
c0000000024cacd0 ffffffff00000000 ffffffffffffffff |................|
c0000000024cace0 c0000000024cace0 c0000000024cace0 |.....L.......L..|
c0000000024cacf0 c000000000614f68 c000000000614f38 |.....aOh.....aO8|
c0000000024cad00 0000000000000000 0000000000000000 |................|
c0000000024cad10 0000000000000000 0000000000000000 |................|
c0000000024cad20 0000000000000000 0000000000000000 |................|
c0000000024cad30 0000000000000000 0000000000000000 |................|
c0000000024cad40 0000000000000000 0000000000000000 |................|
c0000000024cad50 0000000000000000 0000000000000000 |................|
c0000000024cad60 0000000000000000 0000000000000000 |................|
c0000000024cad70 0000000000000000 0000000000000000 |................|
c0000000024cad80 0000000000000000 0000000000000000 |................|
c0000000024cad90 0000000000000000 0000000000000000 |................|
c0000000024cada0 0000000000000000 0000000000000000 |................|
c0000000024cadb0 0000000000000000 0000000000000000 |................|
c0000000024cadc0 0000000000000000 0000000000000000 |................|
c0000000024cadd0 0000000000000000 0000000000000000 |................|
c0000000024cade0 0000000000000000 0000000000000000 |................|
c0000000024cadf0 c00000000303a1a8 c0000000024cae00 |.............L..|
c0000000024cae00 746172676574303a 3235353a31303000 |target0:255:100.|
c0000000024cae10 0000000000000006 c0000000024cae18 |.............L..|
c0000000024cae20 c0000000024cae18 c00000000303a2d8 |.....L..........|
c0000000024cae30 c000000000500c88 0000000000000000 |.....P..........|
c0000000024cae40 0000000000000000 746172676574303a |........target0:|
c0000000024cae50 3235353a31303000 0000000000000000 |255:100.........|
c0000000024cae60 0000000000000000 0000000000000000 |................|
c0000000024cae70 0000000000000000 0000000000000000 |................|
c0000000024cae80 0000000000000000 0000000100000000 |................|
c0000000024cae90 00000000dead4ead ffffffff00000000 |......N.........|
c0000000024caea0 ffffffffffffffff c0000000024caea8 |.............L..|
c0000000024caeb0 c0000000024caea8 0000000000000000 |.....L..........|
c0000000024caec0 0000000000000000 0000000000000000 |................|
c0000000024caed0 0000000000000000 0000000000000000 |................|
c0000000024caee0 0000000000000000 0000000000000000 |................|
c0000000024caef0 0000000000000000 c0000000024caef8 |.............L..|
c0000000024caf00 c0000000024caef8 0000000000000000 |.....L..........|
c0000000024caf10 d0000000002190c0 00000000000000ff |.....!..........|
c0000000024caf20 0000006400000000 0000000000000000 |...d............|
c0000000024caf30 5a5a5a5a5a5a5a5a 5a5a5a5a5a5a5a5a |ZZZZZZZZZZZZZZZZ|
c0000000024caf40 5a5a5a5a5a5a5a5a 5a5a5a5a5a5a5a5a |ZZZZZZZZZZZZZZZZ|
c0000000024caf50 5a5a5a5a5a5a5a5a 5a5a5a5a5a5a5a5a |ZZZZZZZZZZZZZZZZ|
c0000000024caf60 5a5a5a5a5a5a5a5a 5a5a5a5a5a5a5a5a |ZZZZZZZZZZZZZZZZ|
c0000000024caf70 5a5a5a5a5a5a5a5a 5a5a5a5a5a5a5a5a |ZZZZZZZZZZZZZZZZ|
c0000000024caf80 5a5a5a5a5a5a5a5a 5a5a5a5a5a5a5a5a |ZZZZZZZZZZZZZZZZ|
c0000000024caf90 5a5a5a5a5a5a5a5a 5a5a5a5a5a5a5a5a |ZZZZZZZZZZZZZZZZ|
c0000000024cafa0 5a5a5a5a5a5a5a5a 5a5a5a5a5a5a5a5a |ZZZZZZZZZZZZZZZZ|
c0000000024cafb0 5a5a5a5a5a5a5a5a 5a5a5a5a5a5a5a5a |ZZZZZZZZZZZZZZZZ|
c0000000024cafc0 5a5a5a5a5a5a5a5a 5a5a5a5a5a5a5a5a |ZZZZZZZZZZZZZZZZ|
c0000000024cafd0 5a5a5a5a5a5a5a5a 5a5a5a5a5a5a5a5a |ZZZZZZZZZZZZZZZZ|
c0000000024cafe0 5a5a5a5a5a5a5a5a 5a5a5a5a5a5a5a5a |ZZZZZZZZZZZZZZZZ|
....
--
short story of a lazy sysadmin:
alias appserv=wotan
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