[Bug 271712] akonadi takes up 100% CPU load on an otherwise idling KDESC

[Roger Larsson]

https://bugs.kde.org/show_bug.cgi?id=271712





--- Comment #8 from Roger Larsson <roger larsson e-gatan se>  2012-01-13 08:37:11 ---
Created an attachment (id=67767)
 --> (http://bugs.kde.org/attachment.cgi?id=67767)
Snapshot showing iowrites (and sporadic reads)

Did some furter debugging, found out that writes goes to
/home/roger/.config/akonadi/agent_config_akonadi_nepomuk_email_feeder_changes.dat


recvmsg(7, {msg_name(0)=NULL,
msg_iov(1)=[{"maildir_resource_2\0\0\210\1\0\0\0\0\0\0\377\377\377\377"...,
2048}], msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC}, MSG_CMSG_CLOEXEC) = 2048
recvmsg(7, {msg_name(0)=NULL,
msg_iov(1)=[{"Source\0\0\0\0\0\0\3\1s\0\6\0\0\0notify\0\0\10\1g\0"..., 2048}],
msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC}, MSG_CMSG_CLOEXEC) = 2048
read(6, 0x6876b4, 4096)                 = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=3, events=POLLIN}, {fd=7, events=POLLIN}, {fd=8, events=POLLIN},
{fd=6, events=POLLIN}, {fd=9, events=POLLIN}], 5, 0) = 1 ([{fd=7,
revents=POLLIN}])
read(6, 0x6876b4, 4096)                 = -1 EAGAIN (Resource temporarily
unavailable)
stat("/home/roger/.config/akonadi", {st_mode=S_IFDIR|0755, st_size=4096, ...})
= 0
open("/home/roger/.config/akonadi/agent_config_akonadi_nepomuk_email_feeder_changes.dat",
O_WRONLY|O_CREAT|O_TRUNC|O_CLOEXEC, 0666) = 10
fcntl(10, F_SETFD, FD_CLOEXEC)          = 0
fstat(10, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
write(10, "\0\0\0\0\0\3$\242\0\0\0\27akonadi_mbox_resourc"..., 16366) = 16366
write(10, "akonadi_mbox_resource_0\0\0\0\2\0\0\0\1\0"..., 16382) = 16382
write(10,
"\0\0\0\0\0\0\0002\377\377\377\377\377\377\377\377\0\0\0\34\0m\0e\0s\0s\0a\0g"...,
16362) = 16362
write(10,
"\0001\0000\0007\0009\0000\0005\0003\0001\0007\0008\0.\0002\0004\0008\0001\0."...,
16368) = 16368
write(10, "akonadi_maildir_resource_2\0\0\0\2\0\0"..., 16384) = 16384
write(10, "\0\0\0\0\0\0\0\32akonadi_maildir_resource"..., 16378) = 16378
write(10,
"\0\0\0\0\0\0\0\370\377\377\377\377\377\377\377\377\0\0\0\34\0m\0e\0s\0s\0a\0g"...,
16370) = 16370
write(10, "akonadi_maildir_resource_2\0\0\0\0\0\0"..., 16384) = 16384
write(10,
"\0\0\0\1\0\0\0\0\0\0\0168\0\0\0002\0001\0000\0008\0003\0008\0008\0005\0003"...,
16362) = 16362
- - -

write(10, "kmailcvt-1942841066\0\0\0\2\0\0\0\1\0\0\0\0\0"..., 16375) = 16375
write(10, "kmailcvt-1942841066\0\0\0\2\0\0\0\1\0\0\0\0\0"..., 16375) = 16375
write(10, "kmailcvt-1942841066\0\0\0\2\0\0\0\1\0\0\0\0\0"..., 15996) = 15996
close(10)                               = 0

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