Date: Tue, 26 May 2026 13:20:54 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 295609] GEOM, maybe g_cache, panic on 16-CURRENT during heavy load Message-ID: <bug-295609-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=295609 Bug ID: 295609 Summary: GEOM, maybe g_cache, panic on 16-CURRENT during heavy load Product: Base System Version: 16.0-CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: agh@riseup.net Have been getting kernel panics when poudriere-bulk is running. The host is an AMD EYPC 7742, 64 core with 125GiB RAM. Poudriere is configured with USE_TMPFS=all, the disk storage is a ufs+gjournal+geli on a gstripe of 8 gmirror pairs, each disk is labeled with gcache, for a total of 16 disks, and 24TiB of space. Each gcache label was configured with 128 elements at 1MiB. I have noticed recently that the host eventually (either minutes or hours) responds poorly to input within a tmux session, and all the NFS clients will often stall for minutes reading or writing files, this file IO delay is also observed on the host. > Fatal trap 9: general protection fault while in kernel mode > cpuid = 11; apic id = 0b > instruction pointer = 0x20:0xffffffff806187d0 > stack pointer = 0:0xfffffe01fb9b7e20 > frame pointer = 0:0xfffffe01fb9b7e60 > code segment = base 0x0, limit 0xfffff, type 0x1b > = DPL 0, pres 1, long 1, def32 0, gran 1 > processor eflags = interrupt enabled, resume, IOPL = 0 > current process = 14 (g_down) > rdi: fffff8011ba60180 rsi: fffff80e0f318cc0 rdx: 6972506e6f697461 > rcx: 0000000000000007 r8: 0000000000000000 r9: fffff8011ba1bc00 > rax: 00000000002d5cd7 rbx: fffff80e0f318cc0 rbp: fffffe01fb9b7e60 > r10: 0000000000009000 r11: 0000000000000200 r12: fffff80e0f318cc0 > r13: fffff8010e9b3780 r14: fffff8011ba601b8 r15: fffff8011ba60180 > trap number = 9 > panic: general protection fault > cpuid = 11 > time = 1779798903 > Uptime: 3h38m43s > Dumping 9081 out of 130902 MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%..91% > > Reading symbols from /boot/kernel.FAFNIR/linux.ko... > Reading symbols from /usr/lib/debug//boot/kernel.FAFNIR/linux.ko.debug... > Reading symbols from /boot/kernel.FAFNIR/linux_common.ko... > Reading symbols from /usr/lib/debug//boot/kernel.FAFNIR/linux_common.ko.debug... > Reading symbols from /boot/kernel.FAFNIR/vmm.ko... > Reading symbols from /usr/lib/debug//boot/kernel.FAFNIR/vmm.ko.debug... > Reading symbols from /boot/kernel.FAFNIR/geom_journal.ko... > Reading symbols from /usr/lib/debug//boot/kernel.FAFNIR/geom_journal.ko.debug... > Reading symbols from /boot/kernel.FAFNIR/linux64.ko... > Reading symbols from /usr/lib/debug//boot/kernel.FAFNIR/linux64.ko.debug... > Reading symbols from /boot/kernel.FAFNIR/linprocfs.ko... > Reading symbols from /usr/lib/debug//boot/kernel.FAFNIR/linprocfs.ko.debug... > __curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:57 > warning: 57 /usr/src/sys/amd64/include/pcpu_aux.h: No such file or directory > (kgdb) where > #0 __curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:57 > #1 doadump (textdump=<optimized out>) at /usr/src/sys/kern/kern_shutdown.c:399 > #2 0xffffffff806dbdb4 in kern_reboot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:519 > #3 0xffffffff806dc275 in vpanic (fmt=0xffffffff80bca28a "%s", ap=ap@entry=0xfffffe01fb9b7be0) at /usr/src/sys/kern/kern_shutdown.c:974 > #4 0xffffffff806dc113 in panic (fmt=<unavailable>) at /usr/src/sys/kern/kern_shutdown.c:887 > #5 0xffffffff80aa7638 in trap_fatal (frame=<optimized out>, eva=<optimized out>) at /usr/src/sys/amd64/amd64/trap.c:1028 > #6 0xffffffff80aa7527 in trap (frame=0xfffffe01fb9b7d60) at /usr/src/sys/amd64/amd64/trap.c:684 > #7 <signal handler called> > #8 g_cache_lookup (sc=0xfffff8011ba60180, bno=2972887) at /usr/src/sys/geom/cache/g_cache.c:254 > #9 g_cache_read (sc=sc@entry=0xfffff8011ba60180, bp=bp@entry=0xfffff80e0f318cc0) at /usr/src/sys/geom/cache/g_cache.c:266 > #10 0xffffffff80618046 in g_cache_start (bp=0xfffff80e0f318cc0) at /usr/src/sys/geom/cache/g_cache.c:363 > #11 0xffffffff80630507 in g_io_schedule_down (tp=<optimized out>) at /usr/src/sys/geom/geom_io.c:849 > #12 0xffffffff80630edc in g_down_procbody (arg=<optimized out>) at /usr/src/sys/geom/geom_kern.c:108 > #13 0xffffffff80697663 in fork_exit (callout=0xffffffff80630e80 <g_down_procbody>, arg=0x0, frame=0xfffffe01fb9b7f40) at /usr/src/sys/kern/kern_fork.c:1201 > #14 <signal handler called> -- You are receiving this mail because: You are the assignee for the bug.home | help
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