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Date: Sun, 23 Dec 2018 14:08:57 +0800
From: kernel test robot <lkp@...el.com>
To: Corey Minyard <cminyard@...sta.com>
Cc: LKP <lkp@...org>, linux-kernel@...r.kernel.org,
openipmi-developer@...ts.sourceforge.net,
"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: e68b857bde ("ipmi: Don't initialize anything in the core until
.."): BUG: unable to handle kernel paging request at 0593f000
Greetings,
0day kernel testing robot got the below dmesg and the first bad commit is
https://github.com/cminyard/linux-ipmi for-next
commit e68b857bdec3a24ac096a3d83a7ea70c4d3bd967
Author: Corey Minyard <cminyard@...sta.com>
AuthorDate: Thu Dec 20 16:50:23 2018 -0600
Commit: Corey Minyard <cminyard@...sta.com>
CommitDate: Fri Dec 21 07:01:56 2018 -0600
ipmi: Don't initialize anything in the core until something uses it
The IPMI driver was recently modified to use SRCU, but it turns out
this uses a chunk of percpu memory, even if IPMI is never used.
So modify thing to on initialize on the first use. There was already
code to sort of handle this for handling init races, so piggy back
on top of that, and simplify it in the process.
Signed-off-by: Corey Minyard <cminyard@...sta.com>
Reported-by: Tejun Heo <tj@...nel.org>
Cc: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
Reviewed-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
5e6ddecfc9 ipmi:ssif: Change some pr_xxx to dev_xxx calls
e68b857bde ipmi: Don't initialize anything in the core until something uses it
3a31f945b7 ipmi: Remove incorrect use of seq_has_overflowed
+------------------------------------------+------------+------------+---------------+
| | 5e6ddecfc9 | e68b857bde | ipmi/for-next |
+------------------------------------------+------------+------------+---------------+
| boot_successes | 33 | 0 | 0 |
| boot_failures | 0 | 11 | 11 |
| BUG:unable_to_handle_kernel | 0 | 11 | |
| Oops:#[##] | 0 | 11 | |
| EIP:__srcu_read_lock | 0 | 11 | |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 11 | |
| BUG:kernel_hang_in_test_stage | 0 | 0 | 11 |
+------------------------------------------+------------+------------+---------------+
[ 8.934275] uvesafb: vbe_init() failed with -22
[ 8.934700] uvesafb: probe of uvesafb.0 failed with error -22
[ 8.935346] intel_idle: Please enable MWAIT in BIOS SETUP
[ 8.935826] IPMI message handler: version 39.2
[ 8.936314] ipmi device interface
[ 8.936682] BUG: unable to handle kernel paging request at 0593f000
[ 8.937231] *pde = 00000000
[ 8.937493] Oops: 0002 [#1] SMP
[ 8.937777] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.19.0-04690-ge68b857 #1
[ 8.938414] EIP: __srcu_read_lock+0x20/0x40
[ 8.938551] Code: 00 00 00 00 8d bf 00 00 00 00 55 8b 90 a4 01 00 00 83 05 b0 c9 ce 9a 01 8b 80 b8 01 00 00 83 15 b4 c9 ce 9a 00 89 e5 83 e2 01 <64> ff 04 90 f0 83 44 24 fc 00 83 05 b8 c9 ce 9a 01 89 d0 83 15 bc
[ 8.938551] EAX: 00000000 EBX: 9a047fc4 ECX: 9a047fc4 EDX: 00000000
[ 8.938551] ESI: 9a0482d8 EDI: 9a38149d EBP: 9f50df0c ESP: 9f50df0c
[ 8.938551] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00210246
[ 8.938551] CR0: 80050033 CR2: 0593f000 CR3: 1a48f000 CR4: 00140690
[ 8.938551] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[ 8.938551] DR6: fffe0ff0 DR7: 00000400
[ 8.938551] Call Trace:
[ 8.938551] ipmi_smi_watcher_register+0x80/0x180
[ 8.938551] ? ipmi_init_msghandler_mod+0x7d/0x7d
[ 8.938551] init_ipmi_devintf+0x14c/0x1d1
[ 8.938551] do_one_initcall+0x25c/0x5b0
[ 8.945085] ? do_early_param+0x128/0x128
[ 8.945085] kernel_init_freeable+0x509/0x7bd
[ 8.945085] ? rest_init+0x490/0x490
[ 8.945085] kernel_init+0x16/0x270
[ 8.945085] ret_from_fork+0x19/0x24
[ 8.945085] CR2: 000000000593f000
[ 8.945085] ---[ end trace 88c415ed0a18c244 ]---
[ 8.945085] EIP: __srcu_read_lock+0x20/0x40
# HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD
git bisect start 9c8f7ba05515a867dca3007580915995fc653561 651022382c7f8da46cb4872a545ee1da6d097d2a --
git bisect bad b1361f03895df5071cc75d755315d9d5d2669bf0 # 06:43 B 0 1 15 0 Merge 'linux-review/BOUGH-CHEN/dt-bindings-mmc-fsl-imx-esdhc-add-imx6ull-compatible-string/20181223-011123' into devel-catchup-201812230343
git bisect good 27c0fb9f133fe9152dd8e02dea921afa5df708ae # 07:38 G 11 0 0 0 Merge 'pinctrl/for-next' into devel-catchup-201812230343
git bisect bad 7dca783a9d80fbc685eea21c03b6d8652131eeaf # 07:50 B 0 5 19 0 Merge 'linux-review/BOUGH-CHEN/mmc-sdhci-esdhc-imx-clear-ESDHC_STD_TUNING_EN-for-manual-tuning-method/20181223-005516' into devel-catchup-201812230343
git bisect bad 6f0e09dd200ebf0a35f765789e260c72c6c97f1c # 08:10 B 0 11 25 0 Merge 'gpio/devel' into devel-catchup-201812230343
git bisect bad d7218f8fad489f102f507db8bdfefa6181c493fc # 08:22 B 0 1 15 0 Merge 'ipmi/for-next' into devel-catchup-201812230343
git bisect good 9fd96b0715d52f06d4c0ec99d90a779a05c7c482 # 09:29 G 11 0 0 0 ipmi: Fix return value when a message is truncated
git bisect good 0dbc27536f6dc2cf38e89c89d4eaa67402df08f4 # 10:19 G 11 0 0 0 ipmi: kcs_bmc: handle devm_kasprintf() failure case
git bisect bad e68b857bdec3a24ac096a3d83a7ea70c4d3bd967 # 10:35 B 0 11 25 0 ipmi: Don't initialize anything in the core until something uses it
git bisect good 5e6ddecfc90b759bfe090adb7ded374b6d3487b5 # 11:21 G 11 0 0 0 ipmi:ssif: Change some pr_xxx to dev_xxx calls
# first bad commit: [e68b857bdec3a24ac096a3d83a7ea70c4d3bd967] ipmi: Don't initialize anything in the core until something uses it
git bisect good 5e6ddecfc90b759bfe090adb7ded374b6d3487b5 # 11:53 G 31 0 0 0 ipmi:ssif: Change some pr_xxx to dev_xxx calls
# extra tests with debug options
git bisect bad e68b857bdec3a24ac096a3d83a7ea70c4d3bd967 # 12:05 B 0 4 18 0 ipmi: Don't initialize anything in the core until something uses it
# extra tests on HEAD of linux-devel/devel-catchup-201812230343
git bisect bad 9c8f7ba05515a867dca3007580915995fc653561 # 12:11 B 0 13 30 0 0day head guard for 'devel-catchup-201812230343'
# extra tests on tree/branch ipmi/for-next
git bisect good 3a31f945b70990f6113b4800338c09d14620dff3 # 12:44 G 11 0 11 11 ipmi: Remove incorrect use of seq_has_overflowed
# extra tests with first bad commit reverted
git bisect good 201a1702b84d3893b20298887d40d988c10465b6 # 14:08 G 11 0 0 0 Revert "ipmi: Don't initialize anything in the core until something uses it"
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/lkp Intel Corporation
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