Public bug reported: boot failures with 5.4.0-7-generic on OPAL power box:
I was running ADT tests and the machine hung/rebooted. I was unable to log in. After I rebooted the machine with the ipmi tool the machine crashed with the following kernel output: [ 51.081421774,5] SkiBoot skiboot-5.4.8-5787ad3 starting... [ 51.081426316,5] initial console log level: memory 7, driver 5 [ 51.081429224,6] CPU: P8 generation processor(max 8 threads/core) [ 51.081432044,7] CPU: Boot CPU PIR is 0x0470 PVR is 0x004d0200 [ 51.081435009,7] CPU: Initial max PIR set to 0x1fff [ 51.082535316,5] OPAL table: 0x300bfc40 .. 0x300c0110, branch table: 0x30002000 [ 51.082543101,5] FDT: Parsing fdt @0xff00000 [ 51.087692296,5] XSCOM: chip 0x0 at 0x3fc0000000000 [P8 DD2.0] [ 51.087702232,5] XSCOM: chip 0x8 at 0x3fc4000000000 [P8 DD2.0] [ 51.087709775,6] XSTOP: XSCOM addr = 0x2010c82, FIR bit = 31 [ 51.087713185,6] MFSI 0:0: Initialized [ 51.087715462,6] MFSI 0:2: Initialized [ 51.087717669,6] MFSI 0:1: Initialized [ 51.087720203,6] MFSI 8:0: Initialized [ 51.087722365,6] MFSI 8:2: Initialized [ 51.087724518,6] MFSI 8:1: Initialized [ 51.088044434,5] LPC: LPC[000]: Initialized, access via XSCOM @0xb0020 [ 51.088162270,5] LPC: LPC: Default bus on chip 0x0 [ 51.088303476,6] MEM: parsing reserved memory from node /ibm,hostboot/reserved-memory [ 51.088313438,7] HOMER: Init chip 0 [ 51.088316406,7] PBA BAR0 : 0x00000007fd800000 [ 51.088319108,7] PBA MASK0: 0x0000000000300000 [ 51.088321761,7] HOMER Image at 0x7fd800000 size 4MB [ 51.088325579,7] PBA BAR2 : 0x40000007fda00000 [ 51.088328358,7] PBA MASK2: 0x0000000000000000 [ 51.088330928,7] SLW Image at 0x7fda00000 size 1MB [ 51.088334409,7] PBA BAR3 : 0x00000007ff800000 [ 51.088337060,7] PBA MASK3: 0x0000000000700000 [ 51.088339732,7] OCC Common Area at 0x7ff800000 size 8MB [ 51.088342594,7] HOMER: Init chip 8 [ 51.088345257,7] PBA BAR0 : 0x00000007fdc00000 [ 51.088347872,7] PBA MASK0: 0x0000000000300000 [ 51.088350519,7] HOMER Image at 0x7fdc00000 size 4MB [ 51.088354173,7] PBA BAR2 : 0x40000007fde00000 [ 51.088356860,7] PBA MASK2: 0x0000000000000000 [ 51.088359365,7] SLW Image at 0x7fde00000 size 1MB [ 51.088362788,7] PBA BAR3 : 0x00000007ff800000 [ 51.088365419,7] PBA MASK3: 0x0000000000700000 [ 51.088367946,7] OCC Common Area at 0x7ff800000 size 8MB [ 51.088387526,7] CPU idle state device tree init [ 51.088391002,4] SLW: HB-provided idle states property found [ 51.088567406,7] AST: PNOR LPC offset: 0x0c000000 [ 51.088650577,5] PLAT: Using virtual UART [ 51.088977615,7] UART: Using LPC IRQ 4 [ 51.203625382,5] PLAT: Detected Firestone platform [ 51.219765305,5] PLAT: Detected BMC platform AMI [ 51.239417466,5] CENTAUR: Found centaur for chip 0x0 channel 4 [ 51.239524825,5] CENTAUR: FSI host: 0x0 cMFSI0 port 7 [ 51.241283553,5] CENTAUR: Found centaur for chip 0x0 channel 5 [ 51.241759761,5] CENTAUR: FSI host: 0x0 cMFSI0 port 6 [ 51.242362656,5] PSI[0x000]: Found PSI bridge [active=0] [ 51.242690427,5] PSI[0x008]: Found PSI bridge [active=0] [ 51.245117930,5] CPU: All 128 processors called in... [ 2.472212005,5] FLASH: Found system flash: Macronix MXxxL51235F id:0 [ 2.472354468,5] BT: Interface initialized, IO 0x00e4 [ 3.421491873,5] NVRAM: Size is 576 KB [ 4.095942958,5] STB: secure mode off [ 4.096004331,5] STB: trusted mode off [ 4.096965839,5] CAPI: Preloading ucode 200ea [ 4.097023615,5] FLASH: Queueing preload of 2/200ea [ 4.097202595,5] FLASH: Queueing preload of 0/0 [ 4.097723471,5] FLASH: Queueing preload of 1/0 [ 4.097739635,7] FFS: Partition map size: 0x1000 [ 4.101069429,7] FLASH: CAPP partition has ECC [ 4.117588444,5] STB: sb_verify skipped resource 2, secure_mode=0 [ 4.117607170,5] Chip 0 Found PBCQ0 at /xscom@3fc0000000000/pbcq@2012000 [ 4.117610665,7] PHB3[0:0]: X[PE]=0x02012000 X[PCI]=0x09012000 X[SPCI]=0x09013c00 [ 4.117690635,7] PHB3[0:0] REGS = 0x0003fffe40000000 [4k] [ 4.124862367,7] PHB3[0:0] PCIBAR = 0x0003fffe40000000 [ 4.144741905,7] PHB3[0:0] MMIO0 = 0x0000200000000000 [0x0000010000000000] [ 4.147663099,7] PHB3[0:0] MMIO1 = 0x00003fe000000000 [0x0000000080000000] [ 4.151015049,7] PHB3[0:0] BAREN = 0xf800000000000000 [ 4.151018735,7] PHB3[0:0] NEWBAREN = 0xf800000000000000 [ 4.152491015,7] PHB3[0:0] IRSNC = 0x0100000000000000 [ 4.177266431,5] STB: tb_measure skipped resource 2, trusted_mode=0 [ 4.177266472,7] PHB3[0:0] IRSNM = 0xff00000000000000 [ 4.177269336,7] PHB3[0:0] LSI = 0xff00000000000000 [ 4.177278668,5] Chip 0 Found PBCQ1 at /xscom@3fc0000000000/pbcq@2012400 [ 4.177282022,7] PHB3[0:1]: X[PE]=0x02012400 X[PCI]=0x09012400 X[SPCI]=0x09013c40 [ 4.178715842,7] PHB3[0:1] REGS = 0x0003fffe40100000 [4k] [ 4.183043807,7] PHB3[0:1] PCIBAR = 0x0003fffe40100000 [ 4.190163295,5] Chip 8 Found PBCQ0 at /xscom@3fc4000000000/pbcq@2012000 [ 4.208231423,5] Chip 8 Found PBCQ1 at /xscom@3fc4000000000/pbcq@2012400 [ 7.170627939,5] Chip 8 Found PBCQ2 at /xscom@3fc4000000000/pbcq@2012800 [ 8.269331117,3] PHB#0000: Base location code not found ! [ 13.422844377,5] STB: sb_verify skipped resource 0, secure_mode=0 [ 13.422853191,7] BT: seq 0x05 netfn 0x06 cmd 0x06: Message sent to host [ 13.423112031,5] STB: tb_measure skipped resource 0, trusted_mode=0 [ 13.425274455,3] FLASH: No ROOTFS partition [ 13.435729110,3] PHB#0001: Base location code not found ! [ 13.497563875,3] PHB#0020: Base location code not found ! [ 14.047321740,3] PHB#0021: Base location code not found ! [ 14.109002459,3] PHB#0022: Base location code not found ! [ 14.170907665,5] PCI: Resetting PHBs... [ 15.273761743,5] PCI: Probing slots... [ 16.432898479,5] PHB#0000:00:00.0 [ROOT] 1014 03dc R:00 C:060400 B:01..ff SLOT=Slot5 [ 16.434393023,5] PHB#0001:00:00.0 [ROOT] 1014 03dc R:00 C:060400 B:01..ff SLOT=Slot4 [ 16.434910029,5] PHB#0020:00:00.0 [ROOT] 1014 03dc R:00 C:060400 B:01..ff SLOT=Slot2 [ 16.435845882,5] PHB#0021:00:00.0 [ROOT] 1014 03dc R:00 C:060400 B:01..15 SLOT=Backplane PLX [ 16.438571433,5] PHB#0021:01:00.0 [SWUP] 10b5 8725 R:ca C:060400 B:02..15 LOC_CODE=Backplane PLX [ 16.440061205,5] PHB#0021:02:01.0 [SWDN] 10b5 8725 R:ca C:060400 B:03..07 SLOT=Slot3 [ 16.445628911,5] PHB#0021:02:08.0 [SWDN] 10b5 8725 R:ca C:060400 B:08..0c [ 16.447124810,5] PHB#0021:02:09.0 [SWDN] 10b5 8725 R:ca C:060400 B:0d..0d SLOT=Backplane USB [ 16.449944597,5] PHB#0021:0d:00.0 [EP ] 104c 8241 R:02 C:0c0330 ( usb-xhci) LOC_CODE=Backplane USB [ 16.451469746,5] PHB#0021:02:0a.0 [SWDN] 10b5 8725 R:ca C:060400 B:0e..0e SLOT=Backplane SATA [ 16.485306975,5] PHB#0021:0e:00.0 [LGCY] 1b4b 9235 R:11 C:010601 ( sata) LOC_CODE=Backplane SATA [ 16.490275695,5] PHB#0021:02:0b.0 [SWDN] 10b5 8725 R:ca C:060400 B:0f..10 SLOT=Backplane BMC [ 16.491741344,5] PHB#0021:0f:00.0 [ETOX] 1a03 1150 R:03 C:060400 B:10..10 LOC_CODE=Backplane BMC [ 16.493424358,5] PHB#0021:10:00.0 [PCID] 1a03 2000 R:30 C:030000 ( vga) LOC_CODE=Backplane BMC [ 16.496259662,5] PHB#0021:02:0c.0 [SWDN] 10b5 8725 R:ca C:060400 B:11..15 Petitboot (v1.4.4-e414dbe) 8335-GTA 0000000000000000 ────────────────────────────────────────────────────────────────────────────── Ubuntu, with Linux 5.4.0-7-generic (recovery mode) Ubuntu, with Linux 5.4.0-7-generic Ubuntu [Network: enP4p1s0f0 / 98:be:94:01:1f:a4] netboot enP4p1s0f0 (pxelinux.0) [Network: enP4p1s0f2 / 98:be:94:01:1f:a6] netboot enP4p1s0f2 (pxelinux.0) [Network: enP4p1s0f1 / 98:be:94:01:1f:a5] netboot enP4p1s0f1 (pxelinux.0) [Network: enP4p1s0f3 / 98:be:94:01:1f:a7] netboot enP4p1s0f3 (pxelinux.0) System information System configuration System status log Language Rescan devices Retrieve config from URL *Exit to shell ────────────────────────────────────────────────────────────────────────────── Enter=accept, e=edit, n=new, x=exit, l=language, g=log, h=help The system is going down NOW!ig from tftp://10.245.71.3/ppc64el/pxelinux.cfg/01- Sent SIGTERM to all processes Sent SIGKILL to all processes cpu 0x78: Vector: 300 (Data Access) at [c0000007ff3b3a00] pc: c0000000004a5a0c: xhci_irq+0x44c/0x18a0 lr: c0000000004a5604: xhci_irq+0x44/0x18a0 sp: c0000007ff3b3c80 msr: 9000000000009033 dar: b0 dsisr: 40000000 current = 0xc000000001300280 paca = 0xc00000000fe96800 softe: 0 irq_happened: 0x01 pid = 0, comm = swapper/120 enter ? for help [c0000007ff3b3c80] c0000000004a6bcc xhci_irq+0x160c/0x18a0 (unreliable) [c0000007ff3b3e00] c000000000096bd8 handle_irq_event_percpu+0x58/0x170 [c0000007ff3b3eb0] c000000000096d5c handle_irq_event+0x6c/0x9c [c0000007ff3b3ee0] c00000000009ac18 handle_fasteoi_irq+0xc8/0x184 [c0000007ff3b3f10] c0000000000961a0 generic_handle_irq+0x34/0x54 [c0000007ff3b3f30] c00000000000df28 __do_irq+0xb4/0xd0 [c0000007ff3b3f90] c000000000019d58 call_do_irq+0x14/0x24 [c00000000133ba80] c00000000000dfd4 do_IRQ+0x90/0xcc [c00000000133bad0] c0000000000021a8 hardware_interrupt_common+0x128/0x180 --- Exception: 501 (Hardware Interrupt) at c00000000000d8f0 arch_local_irq_restore+0x70/0x80 [c00000000133bdc0] 0000000000000001 (unreliable) [c00000000133bde0] c0000000004db3e0 cpuidle_enter_state+0x1c8/0x238 [c00000000133be30] c00000000008c39c cpu_startup_entry+0x250/0x2ec [c00000000133bee0] c00000000000b4d8 rest_init+0x9c/0xb0 [c00000000133bf00] c0000000007b3bf8 start_kernel+0x510/0x518 [c00000000133bf90] c000000000008c60 start_here_common+0x20/0x440 78:mon> Was able to reboot back into a previous kernel w/o any issues. ** Affects: linux (Ubuntu) Importance: High Status: New ** Changed in: linux (Ubuntu) Importance: Undecided => High -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1855143 Title: 5.4.0-7 kernel crash on boot on power box Status in linux package in Ubuntu: New Bug description: boot failures with 5.4.0-7-generic on OPAL power box: I was running ADT tests and the machine hung/rebooted. I was unable to log in. After I rebooted the machine with the ipmi tool the machine crashed with the following kernel output: [ 51.081421774,5] SkiBoot skiboot-5.4.8-5787ad3 starting... [ 51.081426316,5] initial console log level: memory 7, driver 5 [ 51.081429224,6] CPU: P8 generation processor(max 8 threads/core) [ 51.081432044,7] CPU: Boot CPU PIR is 0x0470 PVR is 0x004d0200 [ 51.081435009,7] CPU: Initial max PIR set to 0x1fff [ 51.082535316,5] OPAL table: 0x300bfc40 .. 0x300c0110, branch table: 0x30002000 [ 51.082543101,5] FDT: Parsing fdt @0xff00000 [ 51.087692296,5] XSCOM: chip 0x0 at 0x3fc0000000000 [P8 DD2.0] [ 51.087702232,5] XSCOM: chip 0x8 at 0x3fc4000000000 [P8 DD2.0] [ 51.087709775,6] XSTOP: XSCOM addr = 0x2010c82, FIR bit = 31 [ 51.087713185,6] MFSI 0:0: Initialized [ 51.087715462,6] MFSI 0:2: Initialized [ 51.087717669,6] MFSI 0:1: Initialized [ 51.087720203,6] MFSI 8:0: Initialized [ 51.087722365,6] MFSI 8:2: Initialized [ 51.087724518,6] MFSI 8:1: Initialized [ 51.088044434,5] LPC: LPC[000]: Initialized, access via XSCOM @0xb0020 [ 51.088162270,5] LPC: LPC: Default bus on chip 0x0 [ 51.088303476,6] MEM: parsing reserved memory from node /ibm,hostboot/reserved-memory [ 51.088313438,7] HOMER: Init chip 0 [ 51.088316406,7] PBA BAR0 : 0x00000007fd800000 [ 51.088319108,7] PBA MASK0: 0x0000000000300000 [ 51.088321761,7] HOMER Image at 0x7fd800000 size 4MB [ 51.088325579,7] PBA BAR2 : 0x40000007fda00000 [ 51.088328358,7] PBA MASK2: 0x0000000000000000 [ 51.088330928,7] SLW Image at 0x7fda00000 size 1MB [ 51.088334409,7] PBA BAR3 : 0x00000007ff800000 [ 51.088337060,7] PBA MASK3: 0x0000000000700000 [ 51.088339732,7] OCC Common Area at 0x7ff800000 size 8MB [ 51.088342594,7] HOMER: Init chip 8 [ 51.088345257,7] PBA BAR0 : 0x00000007fdc00000 [ 51.088347872,7] PBA MASK0: 0x0000000000300000 [ 51.088350519,7] HOMER Image at 0x7fdc00000 size 4MB [ 51.088354173,7] PBA BAR2 : 0x40000007fde00000 [ 51.088356860,7] PBA MASK2: 0x0000000000000000 [ 51.088359365,7] SLW Image at 0x7fde00000 size 1MB [ 51.088362788,7] PBA BAR3 : 0x00000007ff800000 [ 51.088365419,7] PBA MASK3: 0x0000000000700000 [ 51.088367946,7] OCC Common Area at 0x7ff800000 size 8MB [ 51.088387526,7] CPU idle state device tree init [ 51.088391002,4] SLW: HB-provided idle states property found [ 51.088567406,7] AST: PNOR LPC offset: 0x0c000000 [ 51.088650577,5] PLAT: Using virtual UART [ 51.088977615,7] UART: Using LPC IRQ 4 [ 51.203625382,5] PLAT: Detected Firestone platform [ 51.219765305,5] PLAT: Detected BMC platform AMI [ 51.239417466,5] CENTAUR: Found centaur for chip 0x0 channel 4 [ 51.239524825,5] CENTAUR: FSI host: 0x0 cMFSI0 port 7 [ 51.241283553,5] CENTAUR: Found centaur for chip 0x0 channel 5 [ 51.241759761,5] CENTAUR: FSI host: 0x0 cMFSI0 port 6 [ 51.242362656,5] PSI[0x000]: Found PSI bridge [active=0] [ 51.242690427,5] PSI[0x008]: Found PSI bridge [active=0] [ 51.245117930,5] CPU: All 128 processors called in... [ 2.472212005,5] FLASH: Found system flash: Macronix MXxxL51235F id:0 [ 2.472354468,5] BT: Interface initialized, IO 0x00e4 [ 3.421491873,5] NVRAM: Size is 576 KB [ 4.095942958,5] STB: secure mode off [ 4.096004331,5] STB: trusted mode off [ 4.096965839,5] CAPI: Preloading ucode 200ea [ 4.097023615,5] FLASH: Queueing preload of 2/200ea [ 4.097202595,5] FLASH: Queueing preload of 0/0 [ 4.097723471,5] FLASH: Queueing preload of 1/0 [ 4.097739635,7] FFS: Partition map size: 0x1000 [ 4.101069429,7] FLASH: CAPP partition has ECC [ 4.117588444,5] STB: sb_verify skipped resource 2, secure_mode=0 [ 4.117607170,5] Chip 0 Found PBCQ0 at /xscom@3fc0000000000/pbcq@2012000 [ 4.117610665,7] PHB3[0:0]: X[PE]=0x02012000 X[PCI]=0x09012000 X[SPCI]=0x09013c00 [ 4.117690635,7] PHB3[0:0] REGS = 0x0003fffe40000000 [4k] [ 4.124862367,7] PHB3[0:0] PCIBAR = 0x0003fffe40000000 [ 4.144741905,7] PHB3[0:0] MMIO0 = 0x0000200000000000 [0x0000010000000000] [ 4.147663099,7] PHB3[0:0] MMIO1 = 0x00003fe000000000 [0x0000000080000000] [ 4.151015049,7] PHB3[0:0] BAREN = 0xf800000000000000 [ 4.151018735,7] PHB3[0:0] NEWBAREN = 0xf800000000000000 [ 4.152491015,7] PHB3[0:0] IRSNC = 0x0100000000000000 [ 4.177266431,5] STB: tb_measure skipped resource 2, trusted_mode=0 [ 4.177266472,7] PHB3[0:0] IRSNM = 0xff00000000000000 [ 4.177269336,7] PHB3[0:0] LSI = 0xff00000000000000 [ 4.177278668,5] Chip 0 Found PBCQ1 at /xscom@3fc0000000000/pbcq@2012400 [ 4.177282022,7] PHB3[0:1]: X[PE]=0x02012400 X[PCI]=0x09012400 X[SPCI]=0x09013c40 [ 4.178715842,7] PHB3[0:1] REGS = 0x0003fffe40100000 [4k] [ 4.183043807,7] PHB3[0:1] PCIBAR = 0x0003fffe40100000 [ 4.190163295,5] Chip 8 Found PBCQ0 at /xscom@3fc4000000000/pbcq@2012000 [ 4.208231423,5] Chip 8 Found PBCQ1 at /xscom@3fc4000000000/pbcq@2012400 [ 7.170627939,5] Chip 8 Found PBCQ2 at /xscom@3fc4000000000/pbcq@2012800 [ 8.269331117,3] PHB#0000: Base location code not found ! [ 13.422844377,5] STB: sb_verify skipped resource 0, secure_mode=0 [ 13.422853191,7] BT: seq 0x05 netfn 0x06 cmd 0x06: Message sent to host [ 13.423112031,5] STB: tb_measure skipped resource 0, trusted_mode=0 [ 13.425274455,3] FLASH: No ROOTFS partition [ 13.435729110,3] PHB#0001: Base location code not found ! [ 13.497563875,3] PHB#0020: Base location code not found ! [ 14.047321740,3] PHB#0021: Base location code not found ! [ 14.109002459,3] PHB#0022: Base location code not found ! [ 14.170907665,5] PCI: Resetting PHBs... [ 15.273761743,5] PCI: Probing slots... [ 16.432898479,5] PHB#0000:00:00.0 [ROOT] 1014 03dc R:00 C:060400 B:01..ff SLOT=Slot5 [ 16.434393023,5] PHB#0001:00:00.0 [ROOT] 1014 03dc R:00 C:060400 B:01..ff SLOT=Slot4 [ 16.434910029,5] PHB#0020:00:00.0 [ROOT] 1014 03dc R:00 C:060400 B:01..ff SLOT=Slot2 [ 16.435845882,5] PHB#0021:00:00.0 [ROOT] 1014 03dc R:00 C:060400 B:01..15 SLOT=Backplane PLX [ 16.438571433,5] PHB#0021:01:00.0 [SWUP] 10b5 8725 R:ca C:060400 B:02..15 LOC_CODE=Backplane PLX [ 16.440061205,5] PHB#0021:02:01.0 [SWDN] 10b5 8725 R:ca C:060400 B:03..07 SLOT=Slot3 [ 16.445628911,5] PHB#0021:02:08.0 [SWDN] 10b5 8725 R:ca C:060400 B:08..0c [ 16.447124810,5] PHB#0021:02:09.0 [SWDN] 10b5 8725 R:ca C:060400 B:0d..0d SLOT=Backplane USB [ 16.449944597,5] PHB#0021:0d:00.0 [EP ] 104c 8241 R:02 C:0c0330 ( usb-xhci) LOC_CODE=Backplane USB [ 16.451469746,5] PHB#0021:02:0a.0 [SWDN] 10b5 8725 R:ca C:060400 B:0e..0e SLOT=Backplane SATA [ 16.485306975,5] PHB#0021:0e:00.0 [LGCY] 1b4b 9235 R:11 C:010601 ( sata) LOC_CODE=Backplane SATA [ 16.490275695,5] PHB#0021:02:0b.0 [SWDN] 10b5 8725 R:ca C:060400 B:0f..10 SLOT=Backplane BMC [ 16.491741344,5] PHB#0021:0f:00.0 [ETOX] 1a03 1150 R:03 C:060400 B:10..10 LOC_CODE=Backplane BMC [ 16.493424358,5] PHB#0021:10:00.0 [PCID] 1a03 2000 R:30 C:030000 ( vga) LOC_CODE=Backplane BMC [ 16.496259662,5] PHB#0021:02:0c.0 [SWDN] 10b5 8725 R:ca C:060400 B:11..15 Petitboot (v1.4.4-e414dbe) 8335-GTA 0000000000000000 ────────────────────────────────────────────────────────────────────────────── Ubuntu, with Linux 5.4.0-7-generic (recovery mode) Ubuntu, with Linux 5.4.0-7-generic Ubuntu [Network: enP4p1s0f0 / 98:be:94:01:1f:a4] netboot enP4p1s0f0 (pxelinux.0) [Network: enP4p1s0f2 / 98:be:94:01:1f:a6] netboot enP4p1s0f2 (pxelinux.0) [Network: enP4p1s0f1 / 98:be:94:01:1f:a5] netboot enP4p1s0f1 (pxelinux.0) [Network: enP4p1s0f3 / 98:be:94:01:1f:a7] netboot enP4p1s0f3 (pxelinux.0) System information System configuration System status log Language Rescan devices Retrieve config from URL *Exit to shell ────────────────────────────────────────────────────────────────────────────── Enter=accept, e=edit, n=new, x=exit, l=language, g=log, h=help The system is going down NOW!ig from tftp://10.245.71.3/ppc64el/pxelinux.cfg/01- Sent SIGTERM to all processes Sent SIGKILL to all processes cpu 0x78: Vector: 300 (Data Access) at [c0000007ff3b3a00] pc: c0000000004a5a0c: xhci_irq+0x44c/0x18a0 lr: c0000000004a5604: xhci_irq+0x44/0x18a0 sp: c0000007ff3b3c80 msr: 9000000000009033 dar: b0 dsisr: 40000000 current = 0xc000000001300280 paca = 0xc00000000fe96800 softe: 0 irq_happened: 0x01 pid = 0, comm = swapper/120 enter ? for help [c0000007ff3b3c80] c0000000004a6bcc xhci_irq+0x160c/0x18a0 (unreliable) [c0000007ff3b3e00] c000000000096bd8 handle_irq_event_percpu+0x58/0x170 [c0000007ff3b3eb0] c000000000096d5c handle_irq_event+0x6c/0x9c [c0000007ff3b3ee0] c00000000009ac18 handle_fasteoi_irq+0xc8/0x184 [c0000007ff3b3f10] c0000000000961a0 generic_handle_irq+0x34/0x54 [c0000007ff3b3f30] c00000000000df28 __do_irq+0xb4/0xd0 [c0000007ff3b3f90] c000000000019d58 call_do_irq+0x14/0x24 [c00000000133ba80] c00000000000dfd4 do_IRQ+0x90/0xcc [c00000000133bad0] c0000000000021a8 hardware_interrupt_common+0x128/0x180 --- Exception: 501 (Hardware Interrupt) at c00000000000d8f0 arch_local_irq_restore+0x70/0x80 [c00000000133bdc0] 0000000000000001 (unreliable) [c00000000133bde0] c0000000004db3e0 cpuidle_enter_state+0x1c8/0x238 [c00000000133be30] c00000000008c39c cpu_startup_entry+0x250/0x2ec [c00000000133bee0] c00000000000b4d8 rest_init+0x9c/0xb0 [c00000000133bf00] c0000000007b3bf8 start_kernel+0x510/0x518 [c00000000133bf90] c000000000008c60 start_here_common+0x20/0x440 78:mon> Was able to reboot back into a previous kernel w/o any issues. 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