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SubjectRe: [: [Bug 197999] New: [ipmi pci] BUG: unable to handle kernel NULL pointer dereference at (null)]
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Date
On 11/27/2017 08:51 AM, Bjorn Helgaas wrote:
> FYI. This was reported against drivers/pci, but it doesn't look like
> a PCI core issue to me.

Not a PCI issue, it was a change I did.  To whom shall I send the patch
for testing?

This change was in linux-next for many months, and I don't have hardware
with
IPMI on PCI.

-corey

> ----- Forwarded message from bugzilla-daemon@bugzilla.kernel.org -----
>
> Date: Mon, 27 Nov 2017 01:45:48 +0000
> From: bugzilla-daemon@bugzilla.kernel.org
> To: bugzilla.pci@gmail.com
> Subject: [Bug 197999] New: [ipmi pci] BUG: unable to handle kernel NULL pointer
> dereference at (null)
>
> https://bugzilla.kernel.org/show_bug.cgi?id=197999
>
> Bug ID: 197999
> Summary: [ipmi pci] BUG: unable to handle kernel NULL pointer
> dereference at (null)
> Product: Drivers
> Version: 2.5
> Kernel Version: 4.14.0
> Hardware: All
> OS: Linux
> Tree: Mainline
> Status: NEW
> Severity: normal
> Priority: P1
> Component: PCI
> Assignee: drivers_pci@kernel-bugs.osdl.org
> Reporter: yin-jianhong@163.com
> Regression: No
>
> '''
> [ 17.748379] ipmi device interface
> [ 17.800243] hpwdt 0000:01:04.0: HPE Watchdog Timer Driver: NMI decoding
> initialized, allow kernel dump: ON (default = 1/ON)
> [ 17.802325] hpwdt 0000:01:04.0: HPE Watchdog Timer Driver: 1.4.0, timer
> margin: 30 seconds (nowayout=0).
> [ 17.962598] intel_rng: FWH not detected
> [ 18.235369] sd 2:0:0:0: Attached scsi generic sg0 type 0
> [ 18.421459] ACPI Warning: SystemIO range
> 0x0000000000000928-0x000000000000092F conflicts with OpRegion
> 0x0000000000000928-0x000000000000092F (\SGPE) (20170831/utaddress-247)
> [ 18.424132] ACPI: If an ACPI driver is available for this device, you should
> use it instead of the native driver
> [ 18.425910] lpc_ich: Resource conflict(s) found affecting gpio_ich
> [ 18.511453] Loading iSCSI transport class v2.0-870.
> [ 18.746569] IPMI System Interface driver.
> [ 18.747299] ipmi_si dmi-ipmi-si.0: ipmi_platform: probing via SMBIOS
> [ 18.748825] ipmi_si: SMBIOS: io 0xca2 regsize 1 spacing 1 irq 0
> [ 18.755030] leds_ss4200: no LED devices found
> [ 18.756008] ipmi_si: Adding SMBIOS-specified kcs state machine
> [ 18.758204] ipmi_si IPI0001:00: ipmi_platform: probing via ACPI
> [ 18.759473] ipmi_si IPI0001:00: [io 0x0ca2-0x0ca3] regsize 1 spacing 1 irq
> 0
> [ 18.760988] ipmi_si dmi-ipmi-si.0: Removing SMBIOS-specified kcs state
> machine in favor of ACPI
> [ 18.762651] ipmi_si: Adding ACPI-specified kcs state machine
> [ 18.763917] ipmi_platform: probing via SPMI
> [ 18.764930] ipmi_si: SPMI: io 0xca2 regsize 2 spacing 2 irq 0
> [ 18.766145] (NULL device *): SPMI-specified kcs state machine: duplicate
> [ 18.767602] ipmi_si 0000:01:04.6: probing via PCI
> [ 18.768708] BUG: unable to handle kernel NULL pointer dereference at
> (null)
> [ 18.770121] IP: (null)
> [ 18.770670] PGD 0 P4D 0
> [ 18.771227] Oops: 0010 [#1] SMP
> [ 18.771875] Modules linked in: leds_ss4200(-) ipmi_si(+) auth_rpcgss
> scsi_transport_iscsi lpc_ich sg hpwdt ipmi_devintf hpilo floppy(+)
> ipmi_msghandler shpchp nfs_acl lockd i3000_edac grace sunrpc ip_tables xfs
> libcrc32c radeon sd_mod ata_generic pata_acpi i2c_algo_bit drm_kms_helper
> syscopyarea sysfillrect sysimgblt fb_sys_fops ttm ata_piix libata tg3 drm
> serio_raw ptp i2c_core be2net pps_core dm_mirror dm_region_hash dm_log dm_mod
> [ 18.778511] CPU: 0 PID: 567 Comm: systemd-udevd Not tainted 4.14.0 #1
> [ 18.779865] Hardware name: HP ProLiant DL320 G5 , BIOS W04 06/10/2008
> [ 18.781251] task: ffff880116ce1600 task.stack: ffffc900008bc000
> [ 18.782506] RIP: 0010: (null)
> [ 18.783285] RSP: 0018:ffffc900008bfac0 EFLAGS: 00010246
> [ 18.784414] RAX: 00000000fdbf0000 RBX: ffff880122ab2000 RCX:
> 0000000000000000
> [ 18.785945] RDX: 0000000000000002 RSI: 0000000000000216 RDI:
> ffffc900008bfac8
> [ 18.787447] RBP: ffffc900008bfac8 R08: 0000000000000002 R09:
> ffffc900008bfa5c
> [ 18.788997] R10: 0000000000000026 R11: ffffea0004842ac0 R12:
> ffff880122ab20a0
> [ 18.790531] R13: 0000000000000001 R14: 0000000000000003 R15:
> 0000000000000001
> [ 18.792066] FS: 00007fed315068c0(0000) GS:ffff880127a00000(0000)
> knlGS:0000000000000000
> [ 18.793784] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 18.795022] CR2: 0000000000000000 CR3: 00000001221c3000 CR4:
> 00000000000006f0
> [ 18.796538] Call Trace:
> [ 18.797062] ? ipmi_pci_probe+0x1fa/0x270 [ipmi_si]
> [ 18.798109] ? ipmi_pci_probe+0x270/0x270 [ipmi_si]
> [ 18.799152] ? local_pci_probe+0x3f/0xa0
> [ 18.799944] ? pci_assign_irq+0x27/0x120
> [ 18.800776] ? pci_device_probe+0x146/0x1b0
> [ 18.801682] ? driver_probe_device+0x2b3/0x4a0
> [ 18.802622] ? __driver_attach+0xd6/0xe0
> [ 18.803450] ? driver_probe_device+0x4a0/0x4a0
> [ 18.804391] ? bus_for_each_dev+0x68/0xb0
> [ 18.805203] ? bus_add_driver+0x41/0x260
> [ 18.806032] ? driver_register+0x5b/0xd0
> [ 18.806813] ? cleanup_ipmi_si+0x80/0x80 [ipmi_si]
> [ 18.807826] ? ipmi_si_pci_init+0x2a/0x50 [ipmi_si]
> [ 18.808887] ? init_ipmi_si+0x17f/0x1a0 [ipmi_si]
> [ 18.809916] ? cleanup_ipmi_si+0x80/0x80 [ipmi_si]
> [ 18.810946] ? do_one_initcall+0x4d/0x1a0
> [ 18.811795] ? free_unref_page_commit+0x85/0xf0
> [ 18.812769] ? _cond_resched+0x15/0x30
> [ 18.813578] ? kmem_cache_alloc_trace+0x9c/0x1a0
> [ 18.814571] ? do_init_module+0x22/0x220
> [ 18.815400] ? do_init_module+0x5a/0x220
> [ 18.816247] ? load_module+0x21b2/0x2970
> [ 18.817074] ? m_show+0x1c0/0x1c0
> [ 18.817775] ? SYSC_finit_module+0x94/0xe0
> [ 18.818661] ? entry_SYSCALL_64_fastpath+0x1a/0x7d
> [ 18.819690] Code: Bad RIP value.
> [ 18.820399] RIP: (null) RSP: ffffc900008bfac0
> [ 18.821511] CR2: 0000000000000000
> [ 18.822300] ---[ end trace 5427b1c5778ecedd ]---
> [ 18.823320] Kernel panic - not syncing: Fatal exception
> [ 18.824483] Kernel Offset: disabled
> [ 18.825258] ---[ end Kernel panic - not syncing: Fatal exception
> '''
>

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