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SubjectRe: kref refcounting breakage in mainline
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P.S.  forgot to include diagnostic log.  Kobject c0644890 is the source
of my woes. Printk's come below WARN_ON(is_ipmi_si_kobj). Post-tinker
log is huge, and probably not interesting.

[ 30.397160] kobject ipmi_devintf: registering. parent: <NULL>, set: module
[ 30.404033] kobject_uevent_env
[ 30.407098] fill_kobj_path: path = '/module/ipmi_devintf'
[ 30.412524] BUG: at lib/kobject.c:448 kobject_get()
[ 30.417402] [<c0105086>] show_trace_log_lvl+0x1a/0x30
[ 30.422564] [<c01057b2>] show_trace+0x12/0x14
[ 30.427031] [<c0105856>] dump_stack+0x16/0x18
[ 30.431501] [<c02d3c2b>] kobject_get+0x66/0x87
[ 30.436056] [<c02d3f1e>] kobject_shadow_add+0x10/0x1e8
[ 30.441312] [<c02d4100>] kobject_add+0xa/0xc
[ 30.445695] [<c06804c0>] kernel_param_sysfs_setup+0x4d/0x7f
[ 30.451376] [<c068067a>] param_sysfs_init+0x188/0x1c3
[ 30.456538] [<c06725bc>] init+0x144/0x26c
[ 30.460661] [<c0104cfb>] kernel_thread_helper+0x7/0x1c
[ 30.465907] =======================
[ 30.469486] get: c18f65c0 count after get is 2
[ 30.473927] kobject ipmi_si: registering. parent: <NULL>, set: module
[ 30.480372] kobject_uevent_env
[ 30.483430] fill_kobj_path: path = '/module/ipmi_si'

......

[ 73.266556] bus platform: add driver ipmi
[ 73.278013] kobject ipmi: registering. parent: <NULL>, set: drivers
[ 73.291847] kobject_uevent_env
[ 73.302358] fill_kobj_path: path = '/bus/platform/drivers/ipmi'
[ 73.315943] ipmi message handler version 39.1
[ 73.327839] ipmi device interface
[ 73.338524] device class 'ipmi': registering
[ 73.350158] subsystem ipmi: registering
[ 73.361309] kobject ipmi: registering. parent: <NULL>, set: class
[ 73.374841] bus platform: add driver ipmi_si
[ 73.386442] BUG: at lib/kobject.c:448 kobject_get()
[ 73.398617] [<c0105086>] show_trace_log_lvl+0x1a/0x30
[ 73.411079] [<c01057b2>] show_trace+0x12/0x14
[ 73.422780] [<c0105856>] dump_stack+0x16/0x18
[ 73.434324] [<c02d3c2b>] kobject_get+0x66/0x87
[ 73.445860] [<c02d3f1e>] kobject_shadow_add+0x10/0x1e8
[ 73.458088] [<c02d4100>] kobject_add+0xa/0xc
[ 73.469286] [<c02d4248>] kobject_register+0x22/0xb3
[ 73.480986] [<c035a13e>] bus_add_driver+0x77/0x1ae
[ 73.492592] [<c035b109>] driver_register+0x54/0x84
[ 73.504101] [<c034c486>] init_ipmi_si+0x4d/0x829
[ 73.515335] [<c06725bc>] init+0x144/0x26c
[ 73.525822] [<c0104cfb>] kernel_thread_helper+0x7/0x1c
[ 73.537452] =======================
[ 73.547290] get: c064475c count after get is 2
[ 73.557969] kobject ipmi_si: registering. parent: <NULL>, set: drivers
[ 73.570825] kobject_uevent_env
[ 73.580011] fill_kobj_path: path = '/bus/platform/drivers/ipmi_si'
[ 73.592622] BUG: at lib/kobject.c:242 kobject_register()
[ 73.604312] [<c0105086>] show_trace_log_lvl+0x1a/0x30
[ 73.615822] [<c01057b2>] show_trace+0x12/0x14
[ 73.626551] [<c0105856>] dump_stack+0x16/0x18
[ 73.637211] [<c02d429f>] kobject_register+0x79/0xb3
[ 73.648325] [<c035a13e>] bus_add_driver+0x77/0x1ae
[ 73.659297] [<c035b109>] driver_register+0x54/0x84
[ 73.670164] [<c034c486>] init_ipmi_si+0x4d/0x829
[ 73.680756] [<c06725bc>] init+0x144/0x26c
[ 73.690699] [<c0104cfb>] kernel_thread_helper+0x7/0x1c
[ 73.701854] =======================
[ 73.711295] register: c064475c count now is 2 error 0
[ 73.722218] BUG: at lib/kobject.c:448 kobject_get()
[ 73.732911] [<c0105086>] show_trace_log_lvl+0x1a/0x30
[ 73.743927] [<c01057b2>] show_trace+0x12/0x14
[ 73.754112] [<c0105856>] dump_stack+0x16/0x18
[ 73.764253] [<c02d3c2b>] kobject_get+0x66/0x87
[ 73.774532] [<c035b157>] get_driver+0x11/0x18
[ 73.784725] [<c035b194>] driver_create_file+0xf/0x32
[ 73.795559] [<c035a221>] bus_add_driver+0x15a/0x1ae
[ 73.806343] [<c035b109>] driver_register+0x54/0x84
[ 73.817055] [<c034c486>] init_ipmi_si+0x4d/0x829
[ 73.827595] [<c06725bc>] init+0x144/0x26c
[ 73.837468] [<c0104cfb>] kernel_thread_helper+0x7/0x1c
[ 73.848544] =======================
[ 73.857932] get: c064475c count after get is 3
[ 73.868223] BUG: at lib/kobject.c:494 kobject_put()
[ 73.878943] [<c0105086>] show_trace_log_lvl+0x1a/0x30
[ 73.890019] [<c01057b2>] show_trace+0x12/0x14
[ 73.900239] [<c0105856>] dump_stack+0x16/0x18
[ 73.910294] [<c02d3ae7>] kobject_put+0x69/0x82
[ 73.920304] [<c035b144>] put_driver+0xb/0xd
[ 73.929909] [<c035b1b0>] driver_create_file+0x2b/0x32
[ 73.940362] [<c035a221>] bus_add_driver+0x15a/0x1ae
[ 73.950686] [<c035b109>] driver_register+0x54/0x84
[ 73.960966] [<c034c486>] init_ipmi_si+0x4d/0x829
[ 73.971055] [<c06725bc>] init+0x144/0x26c
[ 73.980478] [<c0104cfb>] kernel_thread_helper+0x7/0x1c
[ 73.991119] =======================
[ 74.000050] put: c064475c count before put is 3
[ 74.010026] BUG: at lib/kobject.c:448 kobject_get()
[ 74.020367] [<c0105086>] show_trace_log_lvl+0x1a/0x30
[ 74.031011] [<c01057b2>] show_trace+0x12/0x14
[ 74.040867] [<c0105856>] dump_stack+0x16/0x18
[ 74.050602] [<c02d3c2b>] kobject_get+0x66/0x87
[ 74.060353] [<c035b157>] get_driver+0x11/0x18
[ 74.070034] [<c035b194>] driver_create_file+0xf/0x32
[ 74.080418] [<c035a233>] bus_add_driver+0x16c/0x1ae
[ 74.090742] [<c035b109>] driver_register+0x54/0x84
[ 74.100979] [<c034c486>] init_ipmi_si+0x4d/0x829
[ 74.111041] [<c06725bc>] init+0x144/0x26c
[ 74.120431] [<c0104cfb>] kernel_thread_helper+0x7/0x1c
[ 74.131047] =======================
[ 74.139949] get: c064475c count after get is 3
[ 74.149807] BUG: at lib/kobject.c:494 kobject_put()
[ 74.160111] [<c0105086>] show_trace_log_lvl+0x1a/0x30
[ 74.170739] [<c01057b2>] show_trace+0x12/0x14
[ 74.180569] [<c0105856>] dump_stack+0x16/0x18
[ 74.190286] [<c02d3ae7>] kobject_put+0x69/0x82
[ 74.200019] [<c035b144>] put_driver+0xb/0xd
[ 74.209503] [<c035b1b0>] driver_create_file+0x2b/0x32
[ 74.219982] [<c035a233>] bus_add_driver+0x16c/0x1ae
[ 74.230312] [<c035b109>] driver_register+0x54/0x84
[ 74.240550] [<c034c486>] init_ipmi_si+0x4d/0x829
[ 74.250614] [<c06725bc>] init+0x144/0x26c
[ 74.260001] [<c0104cfb>] kernel_thread_helper+0x7/0x1c
[ 74.270618] =======================
[ 74.279530] put: c064475c count before put is 3
[ 74.289481] IPMI System Interface driver.
[ 74.298864] bus pci: add driver ipmi_si
[ 74.308007] BUG: at lib/kobject.c:448 kobject_get()
[ 74.318260] [<c0105086>] show_trace_log_lvl+0x1a/0x30
[ 74.328861] [<c01057b2>] show_trace+0x12/0x14
[ 74.338637] [<c0105856>] dump_stack+0x16/0x18
[ 74.348372] [<c02d3c2b>] kobject_get+0x66/0x87
[ 74.358245] [<c02d3f1e>] kobject_shadow_add+0x10/0x1e8
[ 74.368837] [<c02d4100>] kobject_add+0xa/0xc
[ 74.378528] [<c02d4248>] kobject_register+0x22/0xb3
[ 74.388817] [<c035a13e>] bus_add_driver+0x77/0x1ae
[ 74.399027] [<c035b109>] driver_register+0x54/0x84
[ 74.409229] [<c02e2999>] __pci_register_driver+0x7e/0xb3
[ 74.420004] [<c034c830>] init_ipmi_si+0x3f7/0x829
[ 74.430196] [<c06725bc>] init+0x144/0x26c
[ 74.439611] [<c0104cfb>] kernel_thread_helper+0x7/0x1c
[ 74.450184] =======================
[ 74.459045] get: c0644890 count after get is 2
[ 74.468796] kobject ipmi_si: registering. parent: <NULL>, set: drivers
[ 74.480769] kobject_uevent_env
[ 74.489210] fill_kobj_path: path = '/bus/pci/drivers/ipmi_si'
[ 74.500675] BUG: at lib/kobject.c:242 kobject_register()
[ 74.511779] [<c0105086>] show_trace_log_lvl+0x1a/0x30
[ 74.522812] [<c01057b2>] show_trace+0x12/0x14
[ 74.533082] [<c0105856>] dump_stack+0x16/0x18
[ 74.543269] [<c02d429f>] kobject_register+0x79/0xb3
[ 74.554015] [<c035a13e>] bus_add_driver+0x77/0x1ae
[ 74.564685] [<c035b109>] driver_register+0x54/0x84
[ 74.575363] [<c02e2999>] __pci_register_driver+0x7e/0xb3
[ 74.586595] [<c034c830>] init_ipmi_si+0x3f7/0x829
[ 74.597161] [<c06725bc>] init+0x144/0x26c
[ 74.606974] [<c0104cfb>] kernel_thread_helper+0x7/0x1c
[ 74.617989] =======================
[ 74.627292] register: c0644890 count now is 2 error 0
[ 74.638150] BUG: at lib/kobject.c:448 kobject_get()
[ 74.648812] [<c0105086>] show_trace_log_lvl+0x1a/0x30
[ 74.659872] [<c01057b2>] show_trace+0x12/0x14
[ 74.670237] [<c0105856>] dump_stack+0x16/0x18
[ 74.680554] [<c02d3c2b>] kobject_get+0x66/0x87
[ 74.690962] [<c02d434c>] kset_find_obj+0x73/0x77
[ 74.701563] [<c01442c5>] module_add_driver+0x64/0x7d
[ 74.712578] [<c035a170>] bus_add_driver+0xa9/0x1ae
[ 74.723405] [<c035b109>] driver_register+0x54/0x84
[ 74.734247] [<c02e2999>] __pci_register_driver+0x7e/0xb3
[ 74.745636] [<c034c830>] init_ipmi_si+0x3f7/0x829
[ 74.756393] [<c06725bc>] init+0x144/0x26c
[ 74.766429] [<c0104cfb>] kernel_thread_helper+0x7/0x1c
[ 74.777654] =======================
[ 74.787103] get: c18f65c0 count after get is 3
[ 74.797461] BUG: at lib/kobject.c:448 kobject_get()
[ 74.808209] [<c0105086>] show_trace_log_lvl+0x1a/0x30
[ 74.819241] [<c01057b2>] show_trace+0x12/0x14
[ 74.829427] [<c0105856>] dump_stack+0x16/0x18
[ 74.839446] [<c02d3c2b>] kobject_get+0x66/0x87
[ 74.849465] [<c01b4812>] sysfs_create_link+0xd3/0x151
[ 74.860178] [<c0144285>] module_add_driver+0x24/0x7d
[ 74.870866] [<c035a170>] bus_add_driver+0xa9/0x1ae
[ 74.881370] [<c035b109>] driver_register+0x54/0x84
[ 74.891850] [<c02e2999>] __pci_register_driver+0x7e/0xb3
[ 74.902918] [<c034c830>] init_ipmi_si+0x3f7/0x829
[ 74.913354] [<c06725bc>] init+0x144/0x26c
[ 74.923019] [<c0104cfb>] kernel_thread_helper+0x7/0x1c
[ 74.933904] =======================
[ 74.943042] get: c18f65c0 count after get is 4
[ 74.953046] BUG: at lib/kobject.c:448 kobject_get()
[ 74.963497] [<c0105086>] show_trace_log_lvl+0x1a/0x30
[ 74.974262] [<c01057b2>] show_trace+0x12/0x14
[ 74.984220] [<c0105856>] dump_stack+0x16/0x18
[ 74.994120] [<c02d3c2b>] kobject_get+0x66/0x87
[ 75.004167] [<c02d3f4a>] kobject_shadow_add+0x3c/0x1e8
[ 75.014941] [<c02d4100>] kobject_add+0xa/0xc
[ 75.024787] [<c02d4248>] kobject_register+0x22/0xb3
[ 75.035216] [<c02d4431>] kobject_add_dir+0x4f/0x6e
[ 75.045511] [<c01442d9>] module_add_driver+0x78/0x7d
[ 75.055991] [<c035a170>] bus_add_driver+0xa9/0x1ae
[ 75.066262] [<c035b109>] driver_register+0x54/0x84
[ 75.076489] [<c02e2999>] __pci_register_driver+0x7e/0xb3
[ 75.087297] [<c034c830>] init_ipmi_si+0x3f7/0x829
[ 75.097483] [<c06725bc>] init+0x144/0x26c
[ 75.106862] [<c0104cfb>] kernel_thread_helper+0x7/0x1c
[ 75.117454] =======================
[ 75.126306] get: c18f65c0 count after get is 5
[ 75.136022] kobject drivers: registering. parent: ipmi_si, set: <NULL>
[ 75.148068] kobject_uevent_env
[ 75.156609] kobject filter function caused the event to drop!
[ 75.168050] BUG: at lib/kobject.c:448 kobject_get()
[ 75.178631] [<c0105086>] show_trace_log_lvl+0x1a/0x30
[ 75.189595] [<c01057b2>] show_trace+0x12/0x14
[ 75.199789] [<c0105856>] dump_stack+0x16/0x18
[ 75.209905] [<c02d3c2b>] kobject_get+0x66/0x87
[ 75.220072] [<c01b4812>] sysfs_create_link+0xd3/0x151
[ 75.230853] [<c01442a5>] module_add_driver+0x44/0x7d
[ 75.241531] [<c035a170>] bus_add_driver+0xa9/0x1ae
[ 75.252030] [<c035b109>] driver_register+0x54/0x84
[ 75.262455] [<c02e2999>] __pci_register_driver+0x7e/0xb3
[ 75.273444] [<c034c830>] init_ipmi_si+0x3f7/0x829
[ 75.283813] [<c06725bc>] init+0x144/0x26c
[ 75.293382] [<c0104cfb>] kernel_thread_helper+0x7/0x1c
[ 75.304189] =======================
[ 75.313370] get: c0644890 count after get is 3
[ 75.323512] BUG: at lib/kobject.c:448 kobject_get()
[ 75.334155] [<c0105086>] show_trace_log_lvl+0x1a/0x30
[ 75.345215] [<c01057b2>] show_trace+0x12/0x14
[ 75.355547] [<c0105856>] dump_stack+0x16/0x18
[ 75.365827] [<c02d3c2b>] kobject_get+0x66/0x87
[ 75.376185] [<c035b157>] get_driver+0x11/0x18
[ 75.386420] [<c035b194>] driver_create_file+0xf/0x32
[ 75.397291] [<c035a221>] bus_add_driver+0x15a/0x1ae
[ 75.408056] [<c035b109>] driver_register+0x54/0x84
[ 75.418682] [<c02e2999>] __pci_register_driver+0x7e/0xb3
[ 75.429904] [<c034c830>] init_ipmi_si+0x3f7/0x829
[ 75.440480] [<c06725bc>] init+0x144/0x26c
[ 75.450257] [<c0104cfb>] kernel_thread_helper+0x7/0x1c
[ 75.461238] =======================
[ 75.470402] get: c0644890 count after get is 4
[ 75.480404] BUG: at lib/kobject.c:494 kobject_put()
[ 75.490866] [<c0105086>] show_trace_log_lvl+0x1a/0x30
[ 75.501613] [<c01057b2>] show_trace+0x12/0x14
[ 75.511530] [<c0105856>] dump_stack+0x16/0x18
[ 75.521420] [<c02d3ae7>] kobject_put+0x69/0x82
[ 75.531449] [<c035b144>] put_driver+0xb/0xd
[ 75.541209] [<c035b1b0>] driver_create_file+0x2b/0x32
[ 75.551845] [<c035a221>] bus_add_driver+0x15a/0x1ae
[ 75.562324] [<c035b109>] driver_register+0x54/0x84
[ 75.572682] [<c02e2999>] __pci_register_driver+0x7e/0xb3
[ 75.583628] [<c034c830>] init_ipmi_si+0x3f7/0x829
[ 75.593942] [<c06725bc>] init+0x144/0x26c
[ 75.603469] [<c0104cfb>] kernel_thread_helper+0x7/0x1c
[ 75.614233] =======================
[ 75.623258] put: c0644890 count before put is 4
[ 75.633227] BUG: at lib/kobject.c:448 kobject_get()
[ 75.643575] [<c0105086>] show_trace_log_lvl+0x1a/0x30
[ 75.654272] [<c01057b2>] show_trace+0x12/0x14
[ 75.664153] [<c0105856>] dump_stack+0x16/0x18
[ 75.673991] [<c02d3c2b>] kobject_get+0x66/0x87
[ 75.683977] [<c035b157>] get_driver+0x11/0x18
[ 75.693884] [<c035b194>] driver_create_file+0xf/0x32
[ 75.704423] [<c035a233>] bus_add_driver+0x16c/0x1ae
[ 75.714893] [<c035b109>] driver_register+0x54/0x84
[ 75.725245] [<c02e2999>] __pci_register_driver+0x7e/0xb3
[ 75.736189] [<c034c830>] init_ipmi_si+0x3f7/0x829
[ 75.746496] [<c06725bc>] init+0x144/0x26c
[ 75.756023] [<c0104cfb>] kernel_thread_helper+0x7/0x1c
[ 75.766778] =======================
[ 75.775786] get: c0644890 count after get is 4
[ 75.785652] BUG: at lib/kobject.c:494 kobject_put()
[ 75.795990] [<c0105086>] show_trace_log_lvl+0x1a/0x30
[ 75.806687] [<c01057b2>] show_trace+0x12/0x14
[ 75.816577] [<c0105856>] dump_stack+0x16/0x18
[ 75.826416] [<c02d3ae7>] kobject_put+0x69/0x82
[ 75.836390] [<c035b144>] put_driver+0xb/0xd
[ 75.846107] [<c035b1b0>] driver_create_file+0x2b/0x32
[ 75.856744] [<c035a233>] bus_add_driver+0x16c/0x1ae
[ 75.867222] [<c035b109>] driver_register+0x54/0x84
[ 75.877589] [<c02e2999>] __pci_register_driver+0x7e/0xb3
[ 75.888545] [<c034c830>] init_ipmi_si+0x3f7/0x829
[ 75.898868] [<c06725bc>] init+0x144/0x26c
[ 75.908412] [<c0104cfb>] kernel_thread_helper+0x7/0x1c
[ 75.919193] =======================
[ 75.928228] put: c0644890 count before put is 4
[ 75.949537] ipmi_si: pci_unregister_driver()
[ 75.959258] bus pci: remove driver ipmi_si
[ 75.968766] BUG: at lib/kobject.c:448 kobject_get()
[ 75.979081] [<c0105086>] show_trace_log_lvl+0x1a/0x30
[ 75.989802] [<c01057b2>] show_trace+0x12/0x14
[ 75.999832] [<c0105856>] dump_stack+0x16/0x18
[ 76.009799] [<c02d3c2b>] kobject_get+0x66/0x87
[ 76.019863] [<c035b157>] get_driver+0x11/0x18
[ 76.029822] [<c035b16c>] driver_remove_file+0xe/0x27
[ 76.040389] [<c035a019>] bus_remove_driver+0x3a/0xa4
[ 76.050989] [<c035b0a8>] driver_unregister+0xb/0x18
[ 76.061432] [<c02e282c>] pci_unregister_driver+0x13/0x73
[ 76.072312] [<c034cc34>] init_ipmi_si+0x7fb/0x829
[ 76.082589] [<c06725bc>] init+0x144/0x26c
[ 76.092090] [<c0104cfb>] kernel_thread_helper+0x7/0x1c
[ 76.102742] =======================
[ 76.111690] get: c0644890 count after get is 4
[ 76.121537] BUG: at lib/kobject.c:494 kobject_put()
[ 76.131808] [<c0105086>] show_trace_log_lvl+0x1a/0x30
[ 76.142477] [<c01057b2>] show_trace+0x12/0x14
[ 76.152463] [<c0105856>] dump_stack+0x16/0x18
[ 76.162397] [<c02d3ae7>] kobject_put+0x69/0x82
[ 76.172408] [<c035b144>] put_driver+0xb/0xd
[ 76.182134] [<c035b181>] driver_remove_file+0x23/0x27
[ 76.192759] [<c035a019>] bus_remove_driver+0x3a/0xa4
[ 76.203309] [<c035b0a8>] driver_unregister+0xb/0x18
[ 76.213726] [<c02e282c>] pci_unregister_driver+0x13/0x73
[ 76.224578] [<c034cc34>] init_ipmi_si+0x7fb/0x829
[ 76.234840] [<c06725bc>] init+0x144/0x26c
[ 76.244316] [<c0104cfb>] kernel_thread_helper+0x7/0x1c
[ 76.254951] =======================
[ 76.263853] put: c0644890 count before put is 4
[ 76.273754] BUG: at lib/kobject.c:448 kobject_get()
[ 76.284057] [<c0105086>] show_trace_log_lvl+0x1a/0x30
[ 76.294677] [<c01057b2>] show_trace+0x12/0x14
[ 76.304462] [<c0105856>] dump_stack+0x16/0x18
[ 76.314213] [<c02d3c2b>] kobject_get+0x66/0x87
[ 76.324122] [<c035b157>] get_driver+0x11/0x18
[ 76.333942] [<c035b16c>] driver_remove_file+0xe/0x27
[ 76.344405] [<c035a025>] bus_remove_driver+0x46/0xa4
[ 76.354882] [<c035b0a8>] driver_unregister+0xb/0x18
[ 76.365243] [<c02e282c>] pci_unregister_driver+0x13/0x73
[ 76.376110] [<c034cc34>] init_ipmi_si+0x7fb/0x829
[ 76.386356] [<c06725bc>] init+0x144/0x26c
[ 76.395830] [<c0104cfb>] kernel_thread_helper+0x7/0x1c
[ 76.406544] =======================
[ 76.415524] get: c0644890 count after get is 4
[ 76.425362] BUG: at lib/kobject.c:494 kobject_put()
[ 76.435659] [<c0105086>] show_trace_log_lvl+0x1a/0x30
[ 76.446287] [<c01057b2>] show_trace+0x12/0x14
[ 76.456107] [<c0105856>] dump_stack+0x16/0x18
[ 76.465876] [<c02d3ae7>] kobject_put+0x69/0x82
[ 76.475800] [<c035b144>] put_driver+0xb/0xd
[ 76.485457] [<c035b181>] driver_remove_file+0x23/0x27
[ 76.496030] [<c035a025>] bus_remove_driver+0x46/0xa4
[ 76.506536] [<c035b0a8>] driver_unregister+0xb/0x18
[ 76.516911] [<c02e282c>] pci_unregister_driver+0x13/0x73
[ 76.527772] [<c034cc34>] init_ipmi_si+0x7fb/0x829
[ 76.538017] [<c06725bc>] init+0x144/0x26c
[ 76.547492] [<c0104cfb>] kernel_thread_helper+0x7/0x1c
[ 76.558194] =======================
[ 76.567160] put: c0644890 count before put is 4
[ 76.577094] BUG: at lib/kobject.c:494 kobject_put()
[ 76.587399] [<c0105086>] show_trace_log_lvl+0x1a/0x30
[ 76.598051] [<c01057b2>] show_trace+0x12/0x14
[ 76.607880] [<c0105856>] dump_stack+0x16/0x18
[ 76.617676] [<c02d3ae7>] kobject_put+0x69/0x82
[ 76.627617] [<c01b27a3>] sysfs_hash_and_remove+0x116/0x11f
[ 76.638712] [<c01b473d>] sysfs_remove_link+0xb/0xd
[ 76.649096] [<c0144151>] module_remove_driver+0x18/0x57
[ 76.659972] [<c035a06b>] bus_remove_driver+0x8c/0xa4
[ 76.670600] [<c035b0a8>] driver_unregister+0xb/0x18
[ 76.681138] [<c02e282c>] pci_unregister_driver+0x13/0x73
[ 76.692128] [<c034cc34>] init_ipmi_si+0x7fb/0x829
[ 76.702470] [<c06725bc>] init+0x144/0x26c
[ 76.712092] [<c0104cfb>] kernel_thread_helper+0x7/0x1c
[ 76.722899] =======================
[ 76.731916] put: c18f65c0 count before put is 5
[ 76.741944] kobject ipmi_si: unregistering
[ 76.751496] kobject_uevent_env
[ 76.759873] fill_kobj_path: path = '/bus/pci/drivers/ipmi_si'
[ 76.771235] BUG: at lib/kobject.c:494 kobject_put()
[ 76.781811] [<c0105086>] show_trace_log_lvl+0x1a/0x30
[ 76.792782] [<c01057b2>] show_trace+0x12/0x14
[ 76.803009] [<c0105856>] dump_stack+0x16/0x18
[ 76.813168] [<c02d3ae7>] kobject_put+0x69/0x82
[ 76.823379] [<c02d3bc2>] unlink+0x3b/0x3e
[ 76.833121] [<c02d3caf>] kobject_del+0x16/0x19
[ 76.843272] [<c02d3ce6>] kobject_unregister+0x34/0xa1
[ 76.854002] [<c035a073>] bus_remove_driver+0x94/0xa4
[ 76.864671] [<c035b0a8>] driver_unregister+0xb/0x18
[ 76.875185] [<c02e282c>] pci_unregister_driver+0x13/0x73
[ 76.886124] [<c034cc34>] init_ipmi_si+0x7fb/0x829
[ 76.896439] [<c06725bc>] init+0x144/0x26c
[ 76.905974] [<c0104cfb>] kernel_thread_helper+0x7/0x1c
[ 76.916676] =======================
[ 76.925694] put: c0644890 count before put is 3
[ 76.935799] BUG: at lib/kobject.c:430 kobject_unregister()
[ 76.946990] [<c0105086>] show_trace_log_lvl+0x1a/0x30
[ 76.957893] [<c01057b2>] show_trace+0x12/0x14
[ 76.968033] [<c0105856>] dump_stack+0x16/0x18
[ 76.978063] [<c02d3d3a>] kobject_unregister+0x88/0xa1
[ 76.988811] [<c035a073>] bus_remove_driver+0x94/0xa4
[ 76.999498] [<c035b0a8>] driver_unregister+0xb/0x18
[ 77.010064] [<c02e282c>] pci_unregister_driver+0x13/0x73
[ 77.021089] [<c034cc34>] init_ipmi_si+0x7fb/0x829
[ 77.031524] [<c06725bc>] init+0x144/0x26c
[ 77.041179] [<c0104cfb>] kernel_thread_helper+0x7/0x1c
[ 77.051980] =======================
[ 77.061057] unregister: c0644890 count before put is 2
[ 77.071811] BUG: at lib/kobject.c:494 kobject_put()
[ 77.082360] [<c0105086>] show_trace_log_lvl+0x1a/0x30
[ 77.093203] [<c01057b2>] show_trace+0x12/0x14
[ 77.103189] [<c0105856>] dump_stack+0x16/0x18
[ 77.113053] [<c02d3ae7>] kobject_put+0x69/0x82
[ 77.123022] [<c02d3d09>] kobject_unregister+0x57/0xa1
[ 77.133655] [<c035a073>] bus_remove_driver+0x94/0xa4
[ 77.144247] [<c035b0a8>] driver_unregister+0xb/0x18
[ 77.154753] [<c02e282c>] pci_unregister_driver+0x13/0x73
[ 77.165770] [<c034cc34>] init_ipmi_si+0x7fb/0x829
[ 77.176205] [<c06725bc>] init+0x144/0x26c
[ 77.185880] [<c0104cfb>] kernel_thread_helper+0x7/0x1c
[ 77.196791] =======================
[ 77.205972] put: c0644890 count before put is 2

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