On 2020-06-16 10:57 a.m., John David Anglin wrote:I will post an updated patch against trunk in a day or two. The debian gcc-snapshot package is > building on mx3210 and phantom. This package almost always failed to build on phantom. Sadly, the patch doesn't fix problem: watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [pr58417.exe:23900] Modules linked in: dm_mod dax binfmt_misc ext4 crc16 jbd2 ext2 mbcache sg ipmi_watchdog ipmi_si ipmi_poweroff ipmi_devintf ipmi_msghandler nfsd ip_tables x_tables ipv6 autofs4 xfs libcrc32c crc32c_generic raid10 raid1 raid0 multipath linear md_mod ses enclosure sd_mod scsi_transport_sas t10_pi uas usb_storage sr_mod cdrom ata_generic ohci_pci ehci_pci ohci_hcd ehci_hcd pata_cmd64x sym53c8xx scsi_transport_spi usbcore libata usb_common tg3 scsi_mod CPU: 1 PID: 23900 Comm: pr58417.exe Tainted: G L 5.6.18+ #2 Hardware name: 9000/800/rp3440 YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI PSW: 00001000000001101111111100001111 Tainted: G L r00-03 000000ff0806ff0f 0000000040891dc0 000000004037d234 0000004123e50960 r04-07 000000004086fdc0 0000000040ab31ac 00000000001354d6 0000000000000ca8 r08-11 0000000040b24710 0000004123e50348 0000000040a1d280 0000004123e50a80 r12-15 0000004123e50994 0000000141e69ec8 00000000b8883cd5 0000004119979948 r16-19 0000000040b253b8 0000004123e50968 0000000000ce2e75 0000004123e50990 r20-23 000000000800000f 0000000e868fecc9 0de501fab0949db0 0000004119979983 r24-27 0000004123e50994 0000004123e50348 0000000141e69ec8 000000004086fdc0 r28-31 0000000000000001 0000004123e50a80 0000004123e50ab0 0000004123e50000 sr00-03 0000000008b81800 0000000000000000 0000000000000000 0000000008b81800 sr04-07 0000000000000000 0000000000000000 0000000000000000 0000000000000000 IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004037d200 000000004037d204 IIR: 51bc0060 ISR: 0000000000000000 IOR: 0000002c0000000b CPU: 1 CR30: 0000004123e50000 CR31: ffffffffffffffff ORIG_R28: 0000000000000000 IAOQ[0]: d_alloc_parallel+0x100/0x688 IAOQ[1]: d_alloc_parallel+0x104/0x688 RP(r2): d_alloc_parallel+0x134/0x688 Backtrace: [<00000000403697bc>] __lookup_slow+0xa4/0x200 [<000000004036a038>] walk_component+0x288/0x458 [<000000004036a3e0>] link_path_walk+0x1d8/0x630 [<000000004036ace4>] path_openat+0x10c/0x1370 [<000000004036ed78>] do_filp_open+0x88/0x120 [<000000004034f758>] do_sys_openat2+0x1e8/0x310 [<00000000403513dc>] do_sys_open+0x64/0x88 [<00000000403515e8>] compat_sys_openat+0x20/0x38 [<0000000040180054>] syscall_exit+0x0/0x14 watchdog: BUG: soft lockup - CPU#3 stuck for 22s! [sh:23899] Modules linked in: dm_mod dax binfmt_misc ext4 crc16 jbd2 ext2 mbcache sg ipmi_watchdog ipmi_si ipmi_poweroff ipmi_devintf ipmi_msghandler nfsd ip_tables x_tables ipv6 autofs4 xfs libcrc32c crc32c_generic raid10 raid1 raid0 multipath linear md_mod ses enclosure sd_mod scsi_transport_sas t10_pi uas usb_storage sr_mod cdrom ata_generic ohci_pci ehci_pci ohci_hcd ehci_hcd pata_cmd64x sym53c8xx scsi_transport_spi usbcore libata usb_common tg3 scsi_mod CPU: 3 PID: 23899 Comm: sh Tainted: G L 5.6.18+ #2 Hardware name: 9000/800/rp3440 YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI PSW: 00001000000001101100000000001111 Tainted: G L r00-03 000000000806c00f 00000000408a6dc0 000000004037af30 000000409ef1cab0 r04-07 000000004086fdc0 0000000000000ca8 0000000040b24710 00000040b7ba73a0 r08-11 0000000040b253b8 0000004127c7eab8 00000040b7ba73f8 000000409ef1ca80 r12-15 0000000000000019 00000040ec69907e 000000409ef1c338 000000000000002f r16-19 000000409ef1c4e0 0000000000000001 0000000000000000 0000000000000001 r20-23 000000409ef1c000 0000000000000000 0000000000000000 00000040b7ba73db r24-27 0000000000ce2e75 0000000000ce2e74 00000040b7ba73a0 000000004086fdc0 r28-31 00000040b7ba7469 000000409ef1ca80 000000409ef1cb60 0000000040ab31ac sr00-03 0000000008b80800 0000000000000000 0000000000000000 0000000008b80800 sr04-07 0000000000000000 0000000000000000 0000000000000000 0000000000000000 IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004037a5e0 000000004037a5e4 IIR: 0d0010dc ISR: 0000000000000000 IOR: 000000000000001f CPU: 3 CR30: 000000409ef1c000 CR31: ffffffffffffffff ORIG_R28: 00000000401dfa04 IAOQ[0]: __d_lookup_done+0x1a8/0x1d0 IAOQ[1]: __d_lookup_done+0x1ac/0x1d0 RP(r2): d_add+0x228/0x270 Backtrace: [<000000004037af30>] d_add+0x228/0x270 [<0000000040395fe4>] simple_lookup+0x64/0xa0 [<00000000403697f8>] __lookup_slow+0xe0/0x200 [<000000004036a038>] walk_component+0x288/0x458 [<000000004036a3e0>] link_path_walk+0x1d8/0x630 [<000000004036ace4>] path_openat+0x10c/0x1370 [<000000004036ed78>] do_filp_open+0x88/0x120 [<000000004034f758>] do_sys_openat2+0x1e8/0x310 [<00000000403513dc>] do_sys_open+0x64/0x88 [<00000000403515e8>] compat_sys_openat+0x20/0x38 [<0000000040180054>] syscall_exit+0x0/0x14 -- John David Anglin dave.anglin@xxxxxxxx