I was trying 4.13.0-rc5-00075-gac9a40905a61 on my PowerMac G4 with 1G RAM and after some time of sddm respawning and X trying to restart, dmesg is full of messages about vmap allocation failures. Maybe the aty128fb is leaking ROM allocations or something like that? sddm has been crashing eearlier too but I have not investigated it yet, but right after reboot the messages are about ATI ROM contents: Aug 17 23:53:57 pohl kernel: [ 2940.146546] aty128fb 0000:00:10.0: Invalid PCI ROM header signature: expecting 0xaa55, got 0x1111 Aug 17 23:54:02 pohl kernel: [ 2944.804838] aty128fb 0000:00:10.0: Invalid PCI ROM header signature: expecting 0xaa55, got 0x1110 Aug 17 23:54:06 pohl kernel: [ 2948.992457] sddm[14039]: unhandled signal 11 at 00000030 nip 00000030 lr 0f55f858 code 30001 Then it changes to groups like this: Aug 17 23:54:29 pohl kernel: [ 2971.514484] sddm[14093]: unhandled signal 11 at 00000090 nip 00000090 lr 0f55f858 code 30001 Aug 17 23:54:30 pohl kernel: [ 2972.994486] aty128fb 0000:00:10.0: Invalid PCI ROM header signature: expecting 0xaa55, got 0x1111 Aug 17 23:54:30 pohl kernel: [ 2973.040595] vmap allocation for size 3149824 failed: use vmalloc=<size> to increase size Aug 17 23:54:33 pohl kernel: [ 2976.245220] aty128fb 0000:00:10.0: Invalid PCI ROM header signature: expecting 0xaa55, got 0x1111 Aug 17 23:54:33 pohl kernel: [ 2976.295452] vmap allocation for size 3149824 failed: use vmalloc=<size> to increase size And finally it becomes just vmalloc errors, no ATI ROM messages at all: [32075.316981] sddm[14563]: unhandled signal 11 at 00000050 nip 00000050 lr 0f55f858 code 30001 [32076.766965] vmap allocation for size 135168 failed: use vmalloc=<size> to increase size [32076.788476] vmap allocation for size 3149824 failed: use vmalloc=<size> to increase size [32079.124735] vmap allocation for size 135168 failed: use vmalloc=<size> to increase size [32079.146326] vmap allocation for size 3149824 failed: use vmalloc=<size> to increase size [32081.305352] sddm[14590]: unhandled signal 11 at 00000050 nip 00000050 lr 0f55f858 code 30001 [32082.768060] vmap allocation for size 135168 failed: use vmalloc=<size> to increase size [32082.789530] vmap allocation for size 3149824 failed: use vmalloc=<size> to increase size [32085.125847] vmap allocation for size 135168 failed: use vmalloc=<size> to increase size [32085.147228] vmap allocation for size 3149824 failed: use vmalloc=<size> to increase size [32087.311193] sddm[14617]: unhandled signal 11 at 00430068 nip 00430068 lr 0f55f858 code 30001 [32088.767983] vmap allocation for size 135168 failed: use vmalloc=<size> to increase size [32088.789536] vmap allocation for size 3149824 failed: use vmalloc=<size> to increase size [32091.108732] vmap allocation for size 135168 failed: use vmalloc=<size> to increase size [32091.130348] vmap allocation for size 3149824 failed: use vmalloc=<size> to increase size [32093.285222] sddm[14644]: unhandled signal 11 at 00000050 nip 00000050 lr 0f55f858 code 30001 [32094.767678] vmap allocation for size 135168 failed: use vmalloc=<size> to increase size [32094.789329] vmap allocation for size 3149824 failed: use vmalloc=<size> to increase size [32097.128241] vmap allocation for size 135168 failed: use vmalloc=<size> to increase size [32097.149745] vmap allocation for size 3149824 failed: use vmalloc=<size> to increase size [32099.293082] sddm[14671]: unhandled signal 11 at 00000030 nip 00000030 lr 0f55f858 code 30001 [32100.768030] vmap allocation for size 135168 failed: use vmalloc=<size> to increase size [32100.789505] vmap allocation for size 3149824 failed: use vmalloc=<size> to increase size [32103.124223] vmap allocation for size 135168 failed: use vmalloc=<size> to increase size [32103.145881] vmap allocation for size 3149824 failed: use vmalloc=<size> to increase size # cat /proc/meminfo MemTotal: 1031440 kB MemFree: 135948 kB MemAvailable: 889288 kB Buffers: 215448 kB Cached: 573780 kB SwapCached: 44 kB Active: 430480 kB Inactive: 392416 kB Active(anon): 14984 kB Inactive(anon): 92276 kB Active(file): 415496 kB Inactive(file): 300140 kB Unevictable: 0 kB Mlocked: 0 kB HighTotal: 262144 kB HighFree: 22140 kB LowTotal: 769296 kB LowFree: 113808 kB SwapTotal: 848984 kB SwapFree: 848464 kB Dirty: 180 kB Writeback: 0 kB AnonPages: 33640 kB Mapped: 84392 kB Shmem: 73592 kB Slab: 66972 kB SReclaimable: 54952 kB SUnreclaim: 12020 kB KernelStack: 680 kB PageTables: 1344 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 1364704 kB Committed_AS: 351992 kB VmallocTotal: 211808 kB VmallocUsed: 0 kB VmallocChunk: 0 kB -- Meelis Roos (mroos@xxxxxxxx) -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html