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Message-ID: <20080214062033.GB17151@linux.vnet.ibm.com>
Date: Thu, 14 Feb 2008 11:50:33 +0530
From: Dhaval Giani <dhaval@...ux.vnet.ibm.com>
To: Chris Snook <csnook@...hat.com>
Cc: lenb@...nel.org, lkml <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.25-rc1 panics on boot
On Wed, Feb 13, 2008 at 01:08:42PM -0500, Chris Snook wrote:
> Dhaval Giani wrote:
>> I am getting the following oops on bootup on 2.6.25-rc1
> ...
>> I am booting using kexec with maxcpus=1. It does not have any problems
>> with maxcpus=2 or higher.
>
> Sounds like another (the same?) kexec cpu numbering bug. Can you post/link
> the entire dmesg from both a cold boot and a kexec boot so we can compare?
>
Don't think its a kexec bug. Get the same on cold boot. dmesg from kexec boot.
[ 0.000000] Linux version 2.6.25-rc1 (root@...11.in.ibm.com) (gcc version 3.4.4 20050721 (Red Hat 3.4.4-2)) #5 SMP Thu Feb 14 06:46:02 IST 2008
[ 0.000000] BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: 0000000000000100 - 000000000009dc00 (usable)
[ 0.000000] BIOS-e820: 000000000009dc00 - 00000000000a0000 (reserved)
[ 0.000000] BIOS-e820: 0000000000100000 - 00000000e97f5f00 (usable)
[ 0.000000] BIOS-e820: 00000000e97f5f00 - 00000000e97ff800 (ACPI data)
[ 0.000000] BIOS-e820: 00000000e97ff800 - 00000000e9800000 (reserved)
[ 0.000000] BIOS-e820: 00000000fec00000 - 0000000100000000 (reserved)
[ 0.000000] BIOS-e820: 0000000100000000 - 0000000140000000 (usable)
[ 0.000000] 4224MB HIGHMEM available.
[ 0.000000] 896MB LOWMEM available.
[ 0.000000] Scan SMP from c0000000 for 1024 bytes.
[ 0.000000] Scan SMP from c009fc00 for 1024 bytes.
[ 0.000000] Scan SMP from c00f0000 for 65536 bytes.
[ 0.000000] Scan SMP from c009dc00 for 1024 bytes.
[ 0.000000] found SMP MP-table at [c009dd40] 0009dd40
[ 0.000000] Reserving 64MB of memory at 16MB for crashkernel (System RAM: 5111MB)
[ 0.000000] Zone PFN ranges:
[ 0.000000] DMA 0 -> 4096
[ 0.000000] Normal 4096 -> 229376
[ 0.000000] HighMem 229376 -> 1310720
[ 0.000000] Movable zone start PFN for each node
[ 0.000000] early_node_map[1] active PFN ranges
[ 0.000000] 0: 0 -> 1310720
[ 0.000000] DMI 2.3 present.
[ 0.000000] Using APIC driver default
[ 0.000000] ACPI: RSDP 000FDD90, 0014 (r0 IBM )
[ 0.000000] ACPI: RSDT E97FF780, 0030 (r1 IBM SERONYXP 1000 IBM 45444F43)
[ 0.000000] ACPI: FACP E97FF700, 0074 (r1 IBM SERONYXP 1000 IBM 45444F43)
[ 0.000000] ACPI: DSDT E97F5F00, 962E (r1 IBM SERAVATR 1000 MSFT 100000B)
[ 0.000000] ACPI: FACS E97FF5C0, 0040
[ 0.000000] ACPI: APIC E97FF600, 00CA (r1 IBM SERONYXP 1000 IBM 45444F43)
[ 0.000000] ACPI: ASF! E97FF540, 004B (r16 IBM SERONYXP 1 IBM 45444F43)
[ 0.000000] ACPI: PM-Timer IO Port: 0x488
[ 0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
[ 0.000000] Processor #0 15:2 APIC version 20
[ 0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x02] enabled)
[ 0.000000] Processor #2 15:2 APIC version 20
[ 0.000000] WARNING: maxcpus limit of 1 reached. Processor ignored.
[ 0.000000] ACPI: LAPIC (acpi_id[0x02] lapic_id[0x04] enabled)
[ 0.000000] Processor #4 15:2 APIC version 20
[ 0.000000] WARNING: maxcpus limit of 1 reached. Processor ignored.
[ 0.000000] ACPI: LAPIC (acpi_id[0x03] lapic_id[0x06] enabled)
[ 0.000000] Processor #6 15:2 APIC version 20
[ 0.000000] WARNING: maxcpus limit of 1 reached. Processor ignored.
[ 0.000000] ACPI: LAPIC (acpi_id[0x04] lapic_id[0x01] enabled)
[ 0.000000] Processor #1 15:2 APIC version 20
[ 0.000000] WARNING: maxcpus limit of 1 reached. Processor ignored.
[ 0.000000] ACPI: LAPIC (acpi_id[0x05] lapic_id[0x03] enabled)
[ 0.000000] Processor #3 15:2 APIC version 20
[ 0.000000] WARNING: maxcpus limit of 1 reached. Processor ignored.
[ 0.000000] ACPI: LAPIC (acpi_id[0x06] lapic_id[0x05] enabled)
[ 0.000000] Processor #5 15:2 APIC version 20
[ 0.000000] WARNING: maxcpus limit of 1 reached. Processor ignored.
[ 0.000000] ACPI: LAPIC (acpi_id[0x07] lapic_id[0x07] enabled)
[ 0.000000] Processor #7 15:2 APIC version 20
[ 0.000000] WARNING: maxcpus limit of 1 reached. Processor ignored.
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x00] dfl dfl lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x02] dfl dfl lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x04] dfl dfl lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x06] dfl dfl lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x01] dfl dfl lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x03] dfl dfl lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x05] dfl dfl lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x07] dfl dfl lint[0x1])
[ 0.000000] ACPI: IOAPIC (id[0x0e] address[0xfec00000] gsi_base[0])
[ 0.000000] IOAPIC[0]: apic_id 14, version 17, address 0xfec00000, GSI 0-15
[ 0.000000] ACPI: IOAPIC (id[0x0d] address[0xfec01000] gsi_base[16])
[ 0.000000] IOAPIC[1]: apic_id 13, version 17, address 0xfec01000, GSI 16-31
[ 0.000000] ACPI: IOAPIC (id[0x0c] address[0xfec02000] gsi_base[32])
[ 0.000000] IOAPIC[2]: apic_id 12, version 17, address 0xfec02000, GSI 32-47
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[ 0.000000] Enabling APIC mode: Flat. Using 3 I/O APICs
[ 0.000000] Using ACPI (MADT) for SMP configuration information
[ 0.000000] Allocating PCI resources starting at ea000000 (gap: e9800000:15400000)
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1294080
[ 0.000000] Kernel command line: root=/dev/sdd1 console=ttyS0,38400 crashkernel=64M@16M nmi_watchdog=2 maxcpus=1
[ 0.000000] Enabling fast FPU save and restore... done.
[ 0.000000] Enabling unmasked SIMD FPU exception support... done.
[ 0.000000] Initializing CPU#0
[ 0.000000] PID hash table entries: 4096 (order: 12, 16384 bytes)
[ 0.000000] Detected 2488.156 MHz processor.
[ 0.004000] Console: colour VGA+ 80x25
[ 0.004000] console [ttyS0] enabled
[ 0.004000] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[ 0.004000] ... MAX_LOCKDEP_SUBCLASSES: 8
[ 0.004000] ... MAX_LOCK_DEPTH: 30
[ 0.004000] ... MAX_LOCKDEP_KEYS: 2048
[ 0.004000] ... CLASSHASH_SIZE: 1024
[ 0.004000] ... MAX_LOCKDEP_ENTRIES: 8192
[ 0.004000] ... MAX_LOCKDEP_CHAINS: 16384
[ 0.004000] ... CHAINHASH_SIZE: 8192
[ 0.004000] memory used by lock dependency info: 992 kB
[ 0.004000] per task-struct memory footprint: 1200 bytes
[ 0.004000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[ 0.004000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.004000] Memory: 4731916k/5242880k available (3107k kernel code, 141068k reserved, 1706k data, 260k init, 3956692k highmem)
[ 0.004000] virtual kernel memory layout:
[ 0.004000] fixmap : 0xfff4c000 - 0xfffff000 ( 716 kB)
[ 0.004000] pkmap : 0xffa00000 - 0xffc00000 (2048 kB)
[ 0.004000] vmalloc : 0xf8800000 - 0xff9fe000 ( 113 MB)
[ 0.004000] lowmem : 0xc0000000 - 0xf8000000 ( 896 MB)
[ 0.004000] .init : 0xc05ba000 - 0xc05fb000 ( 260 kB)
[ 0.004000] .data : 0xc0408e4a - 0xc05b371c (1706 kB)
[ 0.004000] .text : 0xc0100000 - 0xc0408e4a (3107 kB)
[ 0.004000] Checking if this processor honours the WP bit even in supervisor mode...Ok.
[ 0.084010] Calibrating delay using timer specific routine.. 4983.48 BogoMIPS (lpj=9966971)
[ 0.092286] Mount-cache hash table entries: 512
[ 0.100102] CPU: Trace cache: 12K uops, L1 D cache: 8K
[ 0.108012] CPU: L2 cache: 512K
[ 0.112012] CPU: L3 cache: 1024K
[ 0.116013] CPU: Physical Processor ID: 0
[ 0.120015] Intel machine check architecture supported.
[ 0.124017] Intel machine check reporting enabled on CPU#0.
[ 0.128014] CPU0: Intel P4/Xeon Extended MCE MSRs (12) available
[ 0.132020] Compat vDSO mapped to ffffe000.
[ 0.136022] Checking 'hlt' instruction... OK.
[ 0.158163] SMP alternatives: switching to UP code
[ 0.160031] Freeing SMP alternatives: 14k freed
[ 0.164016] ACPI: Core revision 20070126
[ 0.200595] Parsing all Control Methods:
[ 0.204180] Table [DSDT](id 0001) - 990 Objects with 113 Devices 426 Methods 13 Regions
[ 0.208019] tbxface-0598 [00] tb_load_namespace : ACPI Tables successfully acquired
[ 0.220036] evxfevnt-0079 [00] enable : System is already in ACPI mode
[ 0.232194] CPU0: Intel(R) Xeon(TM) MP CPU 2.50GHz stepping 05
[ 0.244067] Total of 1 processors activated (4983.48 BogoMIPS).
[ 0.252499] ENABLING IO-APIC IRQs
[ 0.256251] ..TIMER: vector=0x31 apic1=0 pin1=2 apic2=-1 pin2=-1
[ 0.304019] Brought up 1 CPUs
[ 0.305161] net_namespace: 308 bytes
[ 0.308747] NET: Registered protocol family 16
[ 0.316064] ACPI: bus type pci registered
[ 0.320630] PCI: PCI BIOS revision 2.10 entry at 0xfd74c, last bus=12
[ 0.324046] PCI: Using configuration type 1
[ 0.328053] Setting up standard PCI resources
[ 0.342765] evgpeblk-0956 [00] ev_create_gpe_block : GPE 00 to 1F [_GPE] 4 regs on int 0x7
[ 0.352175] evgpeblk-0956 [00] ev_create_gpe_block : GPE 20 to 3F [_GPE] 4 regs on int 0x7
[ 0.368856] evgpeblk-1052 [00] ev_initialize_gpe_bloc: Found 1 Wake, Enabled 0 Runtime GPEs in this block
[ 0.380358] evgpeblk-1052 [00] ev_initialize_gpe_bloc: Found 0 Wake, Enabled 1 Runtime GPEs in this block
[ 0.411906] Completing Region/Field/Buffer/Package initialization:.................................
[ 0.428442] Initialized 8/13 Regions 0/0 Fields 8/8 Buffers 17/18 Packages (999 nodes)
[ 0.432032] Initializing Device/Processor/Thermal objects by executing _INI methods:.
[ 0.647297] Executed 1 _INI methods requiring 0 _STA executions (examined 123 objects)
[ 0.648128] ACPI: Interpreter enabled
[ 0.652050] ACPI: (supports S0 S5)
[ 0.660875] ACPI: Using IOAPIC for interrupt routing
[ 0.708888] ACPI: PCI Root Bridge [PCI0] (0000:00)
[ 0.723588] ACPI: PCI Root Bridge [PCI1] (0000:01)
[ 0.724861] ACPI: PCI Root Bridge [PCI2] (0000:05)
[ 0.728811] ACPI: PCI Root Bridge [PCI3] (0000:08)
[ 0.733374] ACPI: PCI Root Bridge [PCI4] (0000:09)
[ 0.746441] ACPI: PCI Interrupt Link [LP00] (IRQs *10)
[ 0.753299] ACPI: Blank IRQ resource
[ 0.756056] ACPI: Resource is not an IRQ entry
[ 0.760258] ACPI: PCI Interrupt Link [LP01] (IRQs) *0, disabled.
[ 0.768985] ACPI: Blank IRQ resource
[ 0.772056] ACPI: Resource is not an IRQ entry
[ 0.776257] ACPI: PCI Interrupt Link [LP02] (IRQs) *0, disabled.
[ 0.787897] ACPI: Blank IRQ resource
[ 0.788057] ACPI: Resource is not an IRQ entry
[ 0.796234] ACPI: PCI Interrupt Link [LP03] (IRQs) *0, disabled.
[ 0.805192] ACPI: PCI Interrupt Link [LP04] (IRQs *5)
[ 0.810378] ACPI: PCI Interrupt Link [LP05] (IRQs *5)
[ 0.814331] ACPI: PCI Interrupt Link [LP06] (IRQs *5)
[ 0.818343] ACPI: PCI Interrupt Link [LP07] (IRQs *5)
[ 0.822338] ACPI: PCI Interrupt Link [LP08] (IRQs *5)
[ 0.829507] ACPI: PCI Interrupt Link [LP09] (IRQs *5)
[ 0.837507] ACPI: PCI Interrupt Link [LP0A] (IRQs *5)
[ 0.845506] ACPI: PCI Interrupt Link [LP0B] (IRQs *5)
[ 0.853504] ACPI: PCI Interrupt Link [LP0C] (IRQs *5)
[ 0.861506] ACPI: PCI Interrupt Link [LP0D] (IRQs *5)
[ 0.869506] ACPI: PCI Interrupt Link [LP0E] (IRQs *5)
[ 0.877197] ACPI: PCI Interrupt Link [LP0F] (IRQs *5)
[ 0.885208] ACPI: PCI Interrupt Link [LP10] (IRQs *5)
[ 0.893195] ACPI: PCI Interrupt Link [LP11] (IRQs *5)
[ 0.900629] ACPI: PCI Interrupt Link [LP12] (IRQs *5)
[ 0.908632] ACPI: PCI Interrupt Link [LP13] (IRQs *5)
[ 0.916630] ACPI: PCI Interrupt Link [LP14] (IRQs *5)
[ 0.924632] ACPI: PCI Interrupt Link [LP15] (IRQs *5)
[ 0.932569] ACPI: PCI Interrupt Link [LP16] (IRQs *5)
[ 0.940437] ACPI: PCI Interrupt Link [LP17] (IRQs *5)
[ 0.948292] ACPI: PCI Interrupt Link [LP18] (IRQs *5)
[ 0.956159] ACPI: PCI Interrupt Link [LP19] (IRQs *5)
[ 0.962340] ACPI: PCI Interrupt Link [LP1A] (IRQs *5)
[ 0.966341] ACPI: PCI Interrupt Link [LP1B] (IRQs *5)
[ 0.970343] ACPI: PCI Interrupt Link [LP1C] (IRQs *9)
[ 0.974341] ACPI: PCI Interrupt Link [LP1D] (IRQs *9)
[ 0.978142] ACPI: Blank IRQ resource
[ 0.980069] ACPI: Resource is not an IRQ entry
[ 0.984269] ACPI: PCI Interrupt Link [LP1E] (IRQs) *0, disabled.
[ 0.993206] ACPI: PCI Interrupt Link [LP1F] (IRQs *3)
[ 1.001519] ACPI: PCI Interrupt Link [LPUS] (IRQs *11)
[ 1.009458] Linux Plug and Play Support v0.97 (c) Adam Belay
[ 1.012214] pnp: PnP ACPI init
[ 1.016135] ACPI: bus type pnp registered
[ 1.080559] pnp: PnP ACPI: found 16 devices
[ 1.084077] ACPI: ACPI bus type pnp unregistered
[ 1.089161] SCSI subsystem initialized
[ 1.092692] PCI: Using ACPI for IRQ routing
[ 1.096086] PCI: If a device doesn't work, try "pci=routeirq". If it helps, post a report
[ 1.112067] Time: tsc clocksource has been installed.
[ 1.116172] system 00:01: ioport range 0x900-0x93f has been reserved
[ 1.120081] system 00:01: ioport range 0x510-0x517 has been reserved
[ 1.124081] system 00:01: ioport range 0x504-0x507 has been reserved
[ 1.128081] system 00:01: ioport range 0x500-0x503 has been reserved
[ 1.132081] system 00:01: ioport range 0x520-0x53f has been reserved
[ 1.136081] system 00:01: ioport range 0x420-0x427 has been reserved
[ 1.140082] system 00:01: ioport range 0x460-0x461 has been reserved
[ 1.144106] system 00:0b: ioport range 0x1ec-0x1ef has been reserved
[ 1.148084] system 00:0b: ioport range 0x400-0x4fe could not be reserved
[ 1.152082] system 00:0b: ioport range 0x600-0x600 has been reserved
[ 1.156083] system 00:0b: ioport range 0x800-0x80f has been reserved
[ 1.160085] system 00:0b: ioport range 0xc00-0xcfe could not be reserved
[ 1.164083] system 00:0b: ioport range 0xf50-0xf58 has been reserved
[ 1.168087] system 00:0b: iomem range 0xfec00000-0xffffffff could not be reserved
[ 1.208055] NET: Registered protocol family 2
[ 1.208400] IP route cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 1.213035] TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
[ 1.217326] TCP bind hash table entries: 65536 (order: 9, 2097152 bytes)
[ 1.231138] TCP: Hash tables configured (established 131072 bind 65536)
[ 1.232148] TCP reno registered
[ 1.237205] checking if image is initramfs... it is
[ 1.273950] Freeing initrd memory: 298k freed
[ 1.282923] Machine check exception polling timer started.
[ 1.293703] IA-32 Microcode Update Driver: v1.14a <tigran@...azian.fsnet.co.uk>
[ 1.307534] audit: initializing netlink socket (disabled)
[ 1.308179] type=2000 audit(1202972872.679:1): initialized
[ 1.313132] highmem bounce pool size: 64 pages
[ 1.316100] Total HugeTLB memory allocated, 0
[ 1.325444] io scheduler noop registered
[ 1.328093] io scheduler anticipatory registered (default)
[ 1.332092] io scheduler deadline registered
[ 1.336123] io scheduler cfq registered
[ 1.345336] input: Power Button (FF) as /class/input/input0
[ 1.348156] ACPI: Power Button (FF) [PWRF]
[ 1.359185] ACPI: ACPI0007:00 is registered as cooling_device0
[ 1.360409] BIOS reported wrong ACPI id for the processor
[ 2.372176] ACPI Exception (evxface-0544): AE_NOT_EXIST, Removing notify handler [20070126]
[ 2.380187] BUG: unable to handle kernel NULL pointer dereference at 0000010c
[ 2.392180] IP: [<c01a9105>] sysfs_remove_link+0x1/0xd
[ 2.400181] *pdpt = 00000000005fd001 *pde = 0000000000000000
[ 2.408750] Oops: 0000 [#1] SMP
[ 2.412178] Modules linked in:
[ 2.412178]
[ 2.412178] Pid: 1, comm: swapper Not tainted (2.6.25-rc1 #5)
[ 2.412178] EIP: 0060:[<c01a9105>] EFLAGS: 00010206 CPU: 0
[ 2.412178] EIP is at sysfs_remove_link+0x1/0xd
[ 2.412178] EAX: 000000f0 EBX: f7202cc8 ECX: f789eaf0 EDX: c0533e87
[ 2.412178] ESI: f793c970 EDI: ffffffed EBP: f78a1ea0 ESP: f78a1e90
[ 2.412178] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
[ 2.412178] Process swapper (pid: 1, ti=f78a0000 task=f789eaf0 task.ti=f78a0000)
[ 2.412178] Stack: f78a1ea0 c02709e4 c0568920 f793c970 f78a1eb4 c0269fb5 f793c970 f793cb7c
[ 2.412178] c0568920 f78a1ecc c0269b25 00000000 f793cb7c 00000000 c05689f0 f78a1ee0
[ 2.412179] c02b6460 c05689f0 f793cb7c 00000000 f78a1ef4 c02b6528 f793cb7c f78c332c
[ 2.412179] Call Trace:
[ 2.412179] [<c02709e4>] ? acpi_processor_remove+0x82/0xb4
[ 2.412179] [<c0269fb5>] ? acpi_start_single_object+0x3a/0x41
[ 2.412179] [<c0269b25>] ? acpi_device_probe+0x3b/0x79
[ 2.412179] [<c02b6460>] ? really_probe+0x74/0xf2
[ 2.412179] [<c02b6528>] ? driver_probe_device+0x37/0x40
[ 2.412179] [<c02b6639>] ? __driver_attach+0x76/0xaf
[ 2.412179] [<c02b5825>] ? bus_for_each_dev+0x38/0x5d
[ 2.412179] [<c0238906>] ? kobject_init_and_add+0x20/0x22
[ 2.412179] [<c02b6686>] ? driver_attach+0x14/0x16
[ 2.412179] [<c02b65c3>] ? __driver_attach+0x0/0xaf
[ 2.412179] [<c02b5e04>] ? bus_add_driver+0x99/0x149
[ 2.412179] [<c02b6a68>] ? driver_register+0x43/0x69
[ 2.412179] [<c0269ff6>] ? acpi_bus_register_driver+0x3a/0x3c
[ 2.412179] [<c05cf8dc>] ? acpi_processor_init+0x70/0xa6
[ 2.412179] [<c05ba8e0>] ? kernel_init+0x0/0x88
[ 2.412179] [<c05ba779>] ? do_initcalls+0x75/0x18d
[ 2.412179] [<c01a3eb9>] ? create_proc_entry+0x67/0x7b
[ 2.412179] [<c01527b7>] ? register_irq_proc+0xa4/0xba
[ 2.412179] [<c01a0000>] ? pagemap_read+0x13a/0x1c2
[ 2.412179] [<c05ba8e0>] ? kernel_init+0x0/0x88
[ 2.412179] [<c05ba8ad>] ? do_basic_setup+0x1c/0x1e
[ 2.412179] [<c05ba92d>] ? kernel_init+0x4d/0x88
[ 2.412179] [<c010563b>] ? kernel_thread_helper+0x7/0x10
[ 2.412179] =======================
[ 2.412179] Code: c0 74 07 89 f0 e8 57 f4 ff ff 85 ff 74 11 90 ff 0f 0f 94 c0 84 c0 74 07 89 f8 e8 42 f4 ff ff 8b 45 d8 83 c4 1c 5b 5e 5f 5d c3 55 <8b> 40 1c 89 e5 e8 c1 e8 ff ff 5d c3 55 89 e5 57 89 cf 56 89 c6
[ 2.412179] EIP: [<c01a9105>] sysfs_remove_link+0x1/0xd SS:ESP 0068:f78a1e90
[ 2.412191] ---[ end trace 778e504de7e3b1e3 ]---
[ 2.416182] Kernel panic - not syncing: Attempted to kill init!
Won't be able to a bisect for sometime, but can try debug patches.
--
regards,
Dhaval
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