https://bugzilla.kernel.org/show_bug.cgi?id=201631 --- Comment #4 from erhard_f@xxxxxxxxxxx --- Next occurrence on 4.20-rc4, during building clang: [ 1211.616339] WARNING: CPU: 18 PID: 15049 at fs/ext4/inode.c:3927 .ext4_set_page_dirty+0x70/0xb0 [ 1211.616469] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace sunrpc cfg80211 rfkill evdev radeon ghash_generic gf128mul ecb snd_hda_codec_hdmi xts snd_hda_intel i2c_algo_bit ttm mptsas snd_hda_codec scsi_transport_sas drm_kms_helper xhci_pci mptscsih cbc mptbase snd_hwdep xhci_hcd snd_hda_core cfbfillrect cfbimgblt syscopyarea tg3 vmx_crypto powernv_flash sysimgblt scsi_mod snd_pcm sysfillrect mtd fb_sys_fops opal_prd cfbcopyarea ibmpowernv crc32c_vpmsum drm usbcore snd_timer at24 snd libphy drm_panel_orientation_quirks backlight usb_common soundcore hwmon nx_compress 842 842_decompress 842_compress lz4 lz4_compress lz4_decompress zram zsmalloc [ 1211.616544] CPU: 18 PID: 15049 Comm: debugedit Not tainted 4.20.0-rc4 #1 [ 1211.616549] NIP: c0000000004279a0 LR: c000000000275740 CTR: c000000000427930 [ 1211.616554] REGS: c0002001b5e73550 TRAP: 0700 Not tainted (4.20.0-rc4) [ 1211.616557] MSR: 9000000000029032 <SF,HV,EE,ME,IR,DR,RI> CR: 24082488 XER: 20040000 [ 1211.616568] CFAR: c000000000427974 IRQMASK: 0 GPR00: c000000000275740 c0002001b5e737e0 c0000000011ee200 c00a00000bb46ac0 GPR04: 00003fffa52a0000 c0000002ed1ab186 0000000000000001 0000000000000000 GPR08: 0000000000000000 0000000000000000 c00a00000a60e948 0000000000000000 GPR12: 0000000024082482 c0002003ff7ff280 1000000000000000 c0000000011fd918 GPR16: 00003fffa52a0000 e61fffffffffffff c0000002ed1ab186 c0000001b3442d48 GPR20: 00003fffa52a1000 c00a00000bb46ac0 c0000003ee23c7a8 c0002003f061a850 GPR24: c0002001b53a9500 fffffffffffffe7f c0002000d3450948 0000000000000000 GPR28: ffffffffffffffff 00003fffa530f000 0000000000000000 c00a00000bb46ac0 [ 1211.616602] NIP [c0000000004279a0] .ext4_set_page_dirty+0x70/0xb0 [ 1211.616607] LR [c000000000275740] .set_page_dirty+0xa0/0x150 [ 1211.616611] Call Trace: [ 1211.616616] [c0002001b5e737e0] [c00000000027fa40] .activate_page+0xf0/0x160 (unreliable) [ 1211.616622] [c0002001b5e73850] [c000000000275740] .set_page_dirty+0xa0/0x150 [ 1211.616629] [c0002001b5e738d0] [c0000000002be260] .unmap_page_range+0xbf0/0xe10 [ 1211.616635] [c0002001b5e73a60] [c0000000002be7e4] .unmap_vmas+0x84/0x130 [ 1211.616640] [c0002001b5e73b00] [c0000000002c9218] .unmap_region+0xe8/0x190 [ 1211.616646] [c0002001b5e73c30] [c0000000002cb8f0] .__do_munmap+0x2f0/0x510 [ 1211.616651] [c0002001b5e73cf0] [c0000000002cbb90] .__vm_munmap+0x80/0x110 [ 1211.616656] [c0002001b5e73db0] [c0000000002cbc54] .__se_sys_munmap+0x14/0x30 [ 1211.616664] [c0002001b5e73e20] [c00000000000b3a4] system_call+0x5c/0x70 [ 1211.616668] Instruction dump: [ 1211.616674] 71290008 4182002c e9230000 71292000 41820030 4bf6e5dd 60000000 38210070 [ 1211.616684] e8010010 7c0803a6 4e800020 60000000 <0fe00000> e9230000 71292000 4082ffd8 [ 1211.616694] irq event stamp: 22098 [ 1211.616699] hardirqs last enabled at (22097): [<c00000000026ec5c>] .free_unref_page_list+0x21c/0x3e0 [ 1211.616705] hardirqs last disabled at (22098): [<c000000000008f2c>] program_check_common+0x14c/0x160 [ 1211.616712] softirqs last enabled at (22008): [<c0000000009f9144>] .__do_softirq+0x4b4/0x5e4 [ 1211.616718] softirqs last disabled at (22001): [<c0000000000d1c28>] .irq_exit+0xf8/0x1b0 [ 1211.616722] ---[ end trace 97217f5745b818a0 ]--- -- You are receiving this mail because: You are watching the assignee of the bug.